EPA-600/4-76-009
February 1976
Environmental Monitoring Series
MOBILE LIDAR STUDY OF THE
LOS ANGELES MIXING LAYER
Environmental Sciences Research Laboratory
Office of Research and Development
U.S. Environmental Protection Agency
Research Triangle Park, North Carolina 27711
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RESEARCH REPORTING SERIES
Research reports of the Office of Research and Development, U.S. Environmental
Protection Agency, have been grouped into five series. These five broad
categories were established to facilitate further development and application of
environmental technology. Elimination of traditional grouping was consciously
planned to foster technology transfer and a maximum interface in related fields.
The five series are:
1. Environmental Health Effects Research
2. Environmental Protection Technology
3. Ecological Research
4. Environmental Monitoring
5. Socioeconomic Environmental Studies
This report has been assigned to the ENVIRONMENTAL MONITORING series.
This series describes research conducted to develop new or improved methods
and instrumentation for the identification and quantification of environmental
pollutants at the lowest conceivably significant concentrations. It also includes
studies to determine the ambient concentrations of pollutants in the environment
and/or the variance of pollutants as a function of time or meteorological factors.
This document is available to the publir through the National Technical Informa-
tion Service. Springfield. Virginia 22161.
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EPA-600/4-76-009
February 1976
MOBILE LIDAR STUDY OF
THE LOS ANGELES MIXING LAYER
BY
David T. Liu
System Innovation & Development Corp,
Rolling Hills Estates, Calif. 90274
Contract No. 68-02-1305
Project Officer
Charles R. Hosier
Meteorology and Assessment Division
Environmental Sciences Research Laboratory
Research Triangle Park, N.C. 27711
U.S. ENVIRONMENTAL PROTECTION AGENCY
OFFICE OF RESEARCH AND DEVELOPMENT
.ENVIRONMENTAL SCIENCES RESEARCH LABORATORY
RESEARCH TRIANGLE PARK, N.C. 27711
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DISCLAIMER
This report has been reviewed by the Environmental
Sciences Research Laboratory, U.S. Environmental Protection
Agency, and approved for publication. Approval does not
signify that the contents necessarily reflect the views and
policies of the U.S. Environmental Protection Agency, nor
does mention of trade names or commerical products constitute
endorsement or recommendation for use.
\
11
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ABSTRACT
This program was conducted in support of the Los Angeles Re-
active Pollutant Program (LARPP) jointly planned by the En-
vironmental Protection Agency (EPA) and the Coordinating Re-
search Council (CRC). The objective of this program was to
observe the temporal and spatial variations of the atmospheric
mixing layer by using a mobile Lidar system in the Los Angeles
Basin in conjunction with the LARPP experiment. The observa-
tions along with the results of the comparison analysis in-
volving meteorological and air quality data will be used for
the evaluation of air quality simulation models. These field
data are essential for the development of realistic and accu-
rate air quality simulation models used in analyzing pollution
control strategies.
The effectiveness of using the mobile Lidar system for observ-
ing the temporal and spatial variations of the atmospheric
mixing layer has been demonstrated. It has also been demon-
strated that the Lidar system is a cost-effective means of
gathering such field data. Operational readiness of the mo-
bile Lidar system proved to be quite high throughout the en-
tire LARPP program period. Intensive teamwork rendered equip-
ment breakdowns to be of minimal impact on total system readi-
ness and performance.
Significant correlation was found by comparison of Lidar data
to meteorological observations made. Temperature and moisture
profiles compared well with Lidar information. The analysis
made in comparing the observed Lidar data with the meteorolog-
ical data gathered by the helicopter under the LARPP program
showed good correlation.
More field data are needed to better establish the temporal
and spatial variation of the mixing layer. The knowledge of
the temporal and spatial variation of the mixing layer could
be greatly extended by utilizing multiple Lidar systems in
stationary and/or mobile modes of operation. This will fur-
ther benefit the development of more realistic simulation mod-
els.
This report was submitted in fulfillment of Contract Number
68-02-1305 by System Innovation and Development Corporation
under the sponsorship of the Environmental Protection Agency.
Work was completed as of May 1975.
in
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TABLE OF CONTENTS
Page
Abstract iii
List of 'illustrations vi
List of Charts viii
Acknowledgraents x
Sections
I Conclusions 1
II Recommendations 3
III LARPP Program and the Mobile Lidar Operation 4
IV Description of Mobile Lidar System 6
V Instrumentation and Data Processing System 11
VI Lidar Data Readout and Processing 15
VII Discussion of the Observed Lidar Data 22
VIII Glossary 146
IX Appendixes 147
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ILLUSTRATIONS
Page
1 Mobile Lidar Van 7
2 Schematic of Receiver and Transmitter 9
3 Major System Components m 12
4 Recorded Data Format 13
5 Example of Digital Printout From Data Tape 16
6 Tape Format for Numerical Data Summary 19
7 Polynomial Fit to Data With Normalized . 21
Residual
Mobile Lidar Route Map
Mission Day
8 10/5 28
10 10/10 34
12 10/11 39
14 10/12 44
16 10/15 51
18 10/16 57
20 10/17 64
22 10/18 70
24 10/24 76
26 10/25 82
28 10/26 88
30 10/27 94
32 10/29 101
34 10/30 107
36 10/31 113
38 11/1 119
40 11/2 124
42 11/5 131
44 11/6 138
46 11/7 144
vi
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ILLUSTRATIONS (Continued)
No. Page
Mixing Layer Height Along Observational Routes
Mission Day
9 10/5 29
11 10/10 35
13 10/11 40
15 10/12 45
17 10/15 52
19 10/16 58
21 10/17 . 65
23 10/18 71
25 10/24 77
27 10/25 83
29 10/26 89
31 10/27 95
33 10/29 102
35 10/30 108
37 10/31 114
39 11/1 120
41 11/2 125
43 11/5 132
45 11/6 139
47 11/7 145
VII
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CHARTS
No. Page
1 Lidar System Characteristics , 8
2 Mobile Lidar Mission Summary 25
Comparison of Lidar Mixing Layer Height With
Meteorological Observations
Mission Day -
3 10/5 26
5 10/10 31
7 10/11 37
9 10/12 42
11 10/15 48
13 10/16 54
15 10/17 60
17 10/18 67
19 10/24 73
21 10/25 79
23 10/26 85
25 10/27 91
27 10/29 97
29 10/30 104
31 10/31 110
33 11/1 116
35 11/2 122
37 11/5 127
39 11/6 134
41 11/7 141
Summary of Operation
Mission Day
4 10/5 27
6 10/10 32
8 10/11 38
10 10/12 43
12 10/15 49
14 10/16 55
16 10/17 61
18 10/18 68
20 10/24 74
22 10/25 80
24 10/26 86
26 10/27 92
28 10/29 98
Vlll
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CHARTS (Continued)
No* . Page
Summary of Operation
Mission Day
30 10/30 105
32 10/31 111
34 11/1 117
36 11/2 123
38 11/5 128
40 11/6 135
42 11/7 142
IX
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ACKNOWLEDGMENTS
The guidance and direction of the Project Officer, Mr.
Charles Hosier, and Dr. Jim McElroy, are gratefully acknow- ,,,
ledged. Special recognition and acknowledgment are made for
the fine technical contribution to this program by Mr. James
Karney, and the inspiration and critique by Dr. James
Edinger.
Sincere thanks are expressed to Dr. William Perkins of Met-
ronics Inc. for his direction in the LARPP operation, and
to Mr. Alan Zengel of the Coordinating Research Council for
his sponsorship and coordination of the LARPP program.
Valuable synoptic and meteorological supporting data were
provided by the Air Pollution Control District of Los
Angeles and the National Weather Service.
\
Special thanks to Shirley Schey for her diligence and per-
severance in the preparation of the manuscript.
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SECTION I
CONCLUSIONS
This project entailed the operational use of a developed
Lidar and electronic technology toward the solution of a re- ,
mote sampling problem involving time and distance constraints.
The task of combining electro-optical and electronic proces-
sing equipment, and gas powered generators, for mobile opera-
tion in a van, was not accomplished without difficulty even
though all the equipment had existed as off-the-shelf com-
ponents. The typical systems integration problems such as
ground loops, voltage compatability and spurious transients
quickly appeared but were never a major cause of total system
failure. Operational readiness of the mobile Lidar system
proved to be quite high throughout the entire LARPP program
period. The major cause of any breakdowns were found to be
discrete component failure within the laser power supply and
overload, capacity of the water cooling unit. Teamwork be-
tween contractor and subsystem supplier rendered these break-
downs to be of minimal impact on total system readiness and
performance. Daily inspection of optical alignment and bore-
sight revealed very minor disturbances caused by road shock
and vibration.
A comparison of all Lidar data to surface and rawin observa-
tions made during the LARPP period, revealed rather signifi-
cant trends and correlation. Temperature and moisture
profiles from the radiosondes proved to be of the greatest
aid for initializing the altitudes of the inversion and
stratus before beginning each day's operation. Identifica-
tion was facilitated by using the midday release, particularly
that data from the LAX office. It was noted that for Lidar
operation within a boundary of approximately 15 miles from
the coast line, the best correlation always existed using the
LAX data. Early morning temperature profiles obtained at the
El Monte station usually deviated from those obtained at the
launch site to render those data points of less significance
in the overall comparison effort.
Since the basic program objectives were to provide contin-
uous readings of mixing layer depth, attempts were made for
the Lidar van to follow wind trajectories and monitor the
levels en route. The spatial variability of the temperature
and moisture profiles, and hence the Lidar returns, were
somewhat difficult to interpret especially since these para-
meters can be strongly modified by local geographical
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features. This was indicated during the run on 10/5/73
when observations were made traveling in an easterly direc-
tion toward the San Gabriel Mountains. In this report the
height is referenced to the altitude above ground level
(a.g.l.).
Several observations, such as those on 10/14/73 and
10/24/73, revealed only minor, if any meaningful, compari=-
sons to radiosonde reports, again possibly due to unique
temporal or spatial variability. Tracing the air mass
movements at a fixed location can sometimes alleviate this
ambiguity as one usually starts using some baseline mea-
surement and collects a data history from that time onward.
Cases exist involving small vertical temperature gradients
up to altitudes of several thousand feet. The Lidar re-
turns for these days again show negligible correlation to
radiosonde profiles due to almost homogeneous mixing of the
aerosols within this boundary.
Noted also in several of the daily observations was the
variability of signal return that occurred with very slight
changes in the ambient humidity. For water concentrations
above 10% humidity, it was reported that an overall change
in particulate size, and hence optical scattering, can also
occur. This effect can be seen during a timed sequence of
firings when the wind direction shifted and moisture con-
tent changed.
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SECTION II .
RECOMMENDATIONS
The overall effectiveness of a basic Lidar system to monitor
and record the dynamic variations of the atmospheric struc-
ture has been demonstrated. The limitations imposed by the
technique used in the LARPP program may be in part due to the
wide area coverage required for operation of a single instru-
ment. Because of the wide degree of spatial variability ex-
hibited in the data, it is believed that a more systematic,
series of observations could be used to better delineate the
characteristics of the advected air masses. This might be
accomplished by either a network of three mobile Lidar sys-r
tems or a single unit operating along a fixed route.
At selected locations in the northwestern, southeastern and
eastern sectors within the.L.A. basin, mobile Lidars can be
operated to provide a network of closely coordinated observa-
tions. The mobile Lidars could provide sufficient amount of
data to completely describe the temporal and spatial varia-
tions of the mixing layer height over the entire L.A. basin.
A second method, although not as efficient in resolution
qualities, would be using a single mobile system to record
cross section variations along a boundary flow. This task
would require the designation of a vehicle route that would
be representative of the flow regime or the typical cross
section through the L.A. basin.
The basic capabilities of the Lidar for obtaining a detailed
atmospheric survey within a fixed volume would be the primary
asset in this example.
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SECTION III
LARPP PROGRAM AND THE MOBILE LIDAR OPERATION
The Los Angeles Reactive Pollutant Program (LARPP) operation
was jointly sponsored by the Environmental Protection Agency
(EPA) and Coordinating Research Council (CRC) for the specif-
ic purpose of obtaining a complete data package suitable for
modeling the transport, diffusion and chemical reactions
associated with air pollutants subject to photo-chemical
processes. As a result of earlier programs in the Los Ange-
les basin, LARPP was conceived in 1971 as a Lagrangian type
operation, i.e., aerometric measurements would be made with-
in a moving air parcel as it traversed the Los Angeles basin.
As nearly as possible data were to be taken in real time.
While results were to have general applicability, the Los
Angeles basin was selected for the test area for a number of
reasons: concentrations of photo-chemical pollutant and
precursors are relatively high on a continuous basis; mobile
and fixed sources are documented; there are extensive surface
air sampling networks in operation; and the Air Resources
Board facilities are available including a mobile van.
Several groups participated including: EPA (helicopter in-
struments and ground level radiation measurements); NOAA
(tetroon operations and radar tracking); ARB (mobile van and
laboratory support for GC analysis of bag samples); General
Research Corporation (data management); System Innovation and
Development Corporation (Lidar); and Metronics Associates,
Inc. (tracer and overall operation control). Approximately
sixty people were involved in the field operations.
Field work was begun early in September 1973 and completed in
mid-November. To achieve the program objective, operations
were started as early in the day as possible from a site hav-
ing a significant pollutant source and a forecast trajectory
as long as possible. These conditions were not always com-
patible. A total of five sites were used: two were used
most frequently (downtown Los Angeles - 17 tests; Downey -
12 tests).
In outline, a typical operation proceeded as follows. Three
tetroons were launched simultaneously from a single location
ballasted to fly below the inversion base. The position of
each was established by radar at one-minute intervals and
plotted at the Operation Center (OC). As soon as the cen-
troid of the tetroon pattern was established, FP tracer was
4
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released by helicopter in a one-half mile square pattern
around the centroid approximately midway between the ground
and inversion base. After completion of the fifteen-minute
tracer release the first of two instrumented Bell 212 heli-
copters began a series of seven-minute constant altitude
rectangular flight patterns around the centroid starting near
the inversion base. A second radar continuously tracked the
aircraft and reported positions to the OC. Four flight levels
were used, the lowest 200 feet above ground. Normally, the
aircraft would descend, ascend and descend a second time
through each level before returning to base. The second air-
craft began at the top level when the first aircraft com-
pleted its final flight pattern at the lowest level. Sub-
ject to airway control problems, it was possible to maintain
the flight pattern close to the tetroon centroid. On occa-
sion both aircraft were flown in separate flight patterns
simultaneously. The ARE van was directed along the centroid
path by OC; data were taken continuously both en route and at
fixed locations along the path. Tracking time for each oper-
ation varied from two to eight hours.
Aircraft and van measurements included: 0^, NO, NO (con-
currently), CHL, non-methane hydrocarbon, CO, tracer concen-
tration and air temperature. Bag samples for GC analysis
were taken from all vehicles. In addition, the aircraft mea-
sured dew point and aerosol light scattering. All data were
recorded on magnetic tape in a 6-7 second cycle time. Backup
strip charts were also used.
Lidar measurements from a mobile van were made along the pro-
jected track. The movement of the mobile Lidar van was di-
rected by the central operation center through the two-way
radio communication system for each mission day. The mobile
Lidar started the operation at the launch site prior to
launching of the tetroon. Then under direction of OC the mo-
bile Lidar van normally followed the tetroon movement. In
all the operations, the Lidar van was separated by a few
miles from the helicopter's operation. The mobile Lidar sys-
tem operated in both stationary and mobile modes, depending
on the instruction received from OC.
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SECTION IV
DESCRIPTION OF MOBILE LIDAR SYSTEM
The principal utility of a Lidar in any meteorological or
air pollution studies is its ability to provide a remote
detection capability. Although its uses may vary somewhat,
the basic Lidar configuration of monostatic laser trans-
mitter and receiver has remained unchanged throughout many
years of research investigations. The compact arrangement
of optics lends itself well to portable field operation,
being independent of any external sources of electromagnetic
radiation. The configuration of Lidar components chosen for
use by SI&D in its mobile instrumentation van are depicted
in Figure 1. The Lidar unit is situated on a two-axis, hand-
cranked platform within the van to allow its use in all
angles between the horizontal and vertical firing position.
All electronic controls, firing indicators and photographic
storage are conveniently situated to allow ease of operator
adjustments even during mobile operation.
The characteristics of the basic laser transmitter and re-
ceiver are described in Chart 1. The ruby laser transmitter
is a standard off-the-shelf unit. Its rugged mechanical
design and resonator stability is particularly well suited
to withstand the rigorous vibration environment encountered
during mobile operation. The laser and power supply elec-
tronics are designed for continuous duty operation as found
in production line welding and metal working applications.
The laser rod and lamps are totally submerged in water during
operation. Cooling water is provided by a 2000 BTU refriger-
ated system that can maintain laser head temperature within
1°F even when ambient conditions approach 100°F.
Each pulse of Q-switched energy is transmitted as a quasi-
collimated beam lasting approximately 20 nanoseconds. The
scattering interaction with the atmosphere from each out-
going pulse produces a signature that is collected by the
receiver optics.
The Lidar receiver consists of an 8-inch Cassegrain tele-
scope and photomultiplier detector. A schematic diagram of
this assembly is shown in Figure 2. The optic axis of the
receiver is located approximately 11 inches from that of the
laser. The optical field of view is nominally adjustable
between 0.2 milliradians and 10 milliradians. For all opera-
tions conducted during the observational period, however, the
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Figure 1. Mobile Lidar van
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Chart 1. LIDAR SYSTEM CHARACTERISTICS
Transmitter
Laser wavelength
Pulse Energy
Firing rate
Pulse width
Duty cycle
Beam divergence
Beam diameter
Cooling
6943 Angstroms
0.5 - 2.0 joules
4 ppm
25 nanoseconds
Continuous
2.5 milliradians
0.375 inch at exit
Circulating water
Receiver
Collecting aperture
Optical efficiency
Bandpass filter
Detector
Field of view
8-inch Cassegrain
0.55 (overall inc. filter)
50 Angstrom @ 6943 A
ITT FW-130, S-20 response
0.2 - 10 milliradians
8
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100% Mirror Laser Rod
VQ-Switch and Lamps
l Polarizer t 60% Mirror
^S15 iP
ft A
l_
Zl
A A
\ /
Laser Transmitter - Component Layout
Camera
Shutter
Reflex Relay
Mirror Lens
Prism /
Narrow Band
Filter
Plug-in
Iris
Photomultiplier Tube
Secondary
Mirror
Cassegrain Telescope
Receiver Module
Figure 2. Schematic of receiver and transmitter
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unit was kept at 10 milliradians. A spectral bandpass filter
of 50 Angstroms is used in the receiver to minimize back-
ground sky illuminance. A parallex adjustment between the
two units allows one to vary the angle of intersection be-
tween optic axis, and thus maximize the volume of inter-
action within the atmosphere. A removable prism viewfinder
within the receiver allows visual sighting along the same
optical axis of the photomultiplier detector. The receiver
field of view can be manually adjusted to coincide with the
center of the laser pulse cross section by visually sighting
through the optics to some distant target and then firing
the laser. A mechanical locking fixture clamps both units
rigidly when boresight has been established.
The transmitter and receiver units are solidly mounted to a
two-axis platform which is hand adjustable in azimuth over
360° and elevation from 0 to 90°. Normally the Lidar is set
up to operate in the vertical position by firing through a
hole in the roof of the instrument van.
Each Lidar pulse transmitted must also be measured for its
energy content and subsequently recorded to provide data
normalization. Pulse energy monitoring is accomplished with
an EG&G lite mike detector head mounted internal to the laser
transmitter. A small fraction of the oscillator energy,
leaked through the rear resonator element, is detected and a
waveform generated that is proportional to the transmitted
pulse energy. A sample-and-hold circuit then processes each
pulse for insertion into the data loading format for record-
ing on magnetic tape.
The Biomation 610B waveform digitizer, electronic interface
module and Kennedy 1500 recorder altogether comprise the
elements of the recording system.
Other equipment contained within the van include a Tektronix
546 oscilloscope for real time monitoring of each backscat-
tered pulse. A Polaroid camera attachment is used to provide
hard copies of selected signal returns that are presented on
the oscilloscope.
Electrical power for the mobile instrumentation van is pro-
vided by a 15 kw gasoline generator towed behind the van.
10
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SECTION V
INSTRUMENTATION AND DATA PROCESSING SYSTEM
Early field investigations using the Lidar were somewhat
limited in data recording aspects due to the requirement for
photographing each backscatter pulse as it appears on the
display oscilloscope. Current advances in data recording,
processing and display have made the Lidar system an effec-
tive means of acquiring atmospheric data.
Any type of operational data gathering has to be cost-effec-
tive from the standpoint of time and man-hours spent to both
collect and interpret the data. Today's electronic technol-
ogy, with high speed analog to digital encoders, has made it
possible for real time processing of each Lidar pulse as it
is received, and storing the product on conventional magnetic
tape. Once in this format, Lidar data can be analyzed in the
feaae manner as is done using other meteorological sensors.
The basic signal processor used with the Lidar is the Bioma-
tion Model 610B transient digitizer. Each backscatter pulse
detected by the photomultiplier results in an analog output
voltage that is sent to the transient digitizer for tempor-
ary storage. Linear amplifiers or signal conditioners are
not used. The Model 610B converts the analog signal at a
10 MHz rate, into 256, 6-bit words using a shift register
memory to capture and hold the digital equivalent of the in-
put. When triggered to read out the stored information, the
result is a smoothed function with data points at 0.1 micro-
second intervals. Information stored in the 61OB is recircu-
lated in the memory circuits until updated by another input
pulse. This allows time for viewing each processed pulse on
an oscilloscope or strip chart recorder.
Permanent storage for each backscatter return is accomplished
using a Kennedy Model 1500 incremental magnetic tape record-
er. An interface, or buffer unit, between recorder and the
transient digitizer is necessary for slowing the data trans-
fer rate.
The interface module also controls the starting and stopping
of the recorder. Upon receipt of a trigger command from the
610B, the interface module synchronously controls the readout
of the 256 data words plus six identifier words into the mag-
netic tape recorder. An internal command from the 61OB
designates when readout from the memory is complete allowing
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the interface module to turn off the recorder. A small tape
gap of approximately \ inch is automatically placed between
each recorded segment.
The major electronic subassemblies of the Lidar and data
recording system are illustrated in the block diagram shown
in Figure 3.
Power
Supply
Control
Elec.
Flash Lamps
Laser Rod
Mag
Tape
Elec.
Interface
i
i
. — r
\
A/D - S.H.
610-B
--
P.M.T.
Detector
[ xxxxxxxx )
Data Switches
Figure 3. Major system components
Along with each processed Lidar signal, there must be an
accompanying identifying file number for systematically
logging each set of data onto the tape. This is accomplished
with a set of ten manually programmed control switches also
connected to the interface module. Information as to day,
time, position and operation number are read into the tape as
each variable changes.
Preceding the readout position of the 10-digit file word is
the digitized portion of the pulse energy from the laser.
The design of the interface and control switches allows for
the eventual insertion of a digital time clock. Presently,
the day, hour, and operation number are manually set using
12
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the thumbwheel switches.
An example of the data format for the recorded information
is shown in Figure 4. This information is serially placed
on magnetic tape beginning with the time interval marked,
and continuing until all 272 words have been transferred.
The 272 words constitute the entire record length.
Word Positions
1 4 5 -
14 16
272
MSB
LSB
Data Switches
'S
M
3
M
o
S5
Lidar Data
Figure 4. Recorded data format
The transferral into mag tape storage begins with the most
significant byte (MSB) of each word and ends with the least
significant byte (LSB). The Kennedy 1500 uses six of its
seven recording tracks running at the conventional 1600
bytes/inch. An end of file or record gap is automatically
inserted between each sequence of 272 words.
An example of a complete data record cycle would be as
follows:
1.
2.
3.
Laser is pulsed and threshold detector triggers 61OB,
preconditioning the memory.
Output from PMT enters the shift registers of the 610B;
processed signal now begins recirculating.
Upon indication that digital data is present, interface
13
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module is triggered to begin readout cycle; recorder is
turned on.
4. Data switches are sampled prior to sampling information
from the 61OB memory.
5. Upon readout of the 272nd word, a "transmission com-
plete" signal is passed to the interface module; record-
er is turned off.
6. Processed pulse information continues to recirculate in
610B shift registers until updated — signal is trans-
ferred to oscilloscope for monitoring.
14
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SECTION VI
LIDAR DATA READOUT AND PROCESSING
One day of successful operation for the LARPP program will
result in the storage of from 500 to 800 Lidar pulses on
one reel of magnetic tape. Individually reviewing each
returned backscatter pulse is possible by unpacking the mag-
netic tape using the format in Figure 4. This can be accom-
plished at any data processing facility using IBM compatible
tape readout.
A generalized description of a recorded Lidar pulse might
appear as in Figure 5 after processing by the 610B and trans-
ferral from the tape storage.
Time or slant range is read along the x-axis in increments
of 15 meters corresponding to each data point. This is the
shortest sampling interval (0.1 microsecond) allowed by the
610B and represents the limiting spatial resolution. The
intensity along the y-axis is measured in arbitrary units.
The measurement of range to a discontinuity or layer is de-
termined from the one-way time interval between the time of
pulse transmission and receipt of an echo from the layer.
The time of pulse transmission is visually identified from
the data, as in Figure 5, as the point where the signal is
deflected from the horizontal.
The mobile Lidar was operated principally at 45 degrees ele-
vation from 5 Oct. to 11 Nov. Data recorded during this
time interval was later processed with a .707 factor to
account for the elevation angle when determining vertical
height to a layer. The recorded data are also annotated to
indicate when 45 or 90jdegrees is used.
It should be noted that depression angles below 90 degrees
afford the opportunity of looking through a greater thick-
ness of haze or inversion layers. In cases where the bound-
ary region is quite thin, the more scattering that occurs
allows the discontinuity to be easily identified.
An elevated moisture layer associated with a stratus or
marine layer inversion!is quite common over the California
coastal areas. The existence of this condition can be recog-
nized in the raw data printout from the characteristic scat-
tering increase associated with the moisture particulates.
The signal level from just above this layer is usually at a
lower magnitude from the case where no attenuation is present.
' 15
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I
1
" 1
* 1
''-..
-
• .
•
VJ
M
-P
*
W
FH
§
W
O
m
m
§
O
CO
O
in
CM
o
o
m
H
o
in
o o »j tj o o *"r
vo in Tf ro (\j HO
Intensity
Figure 5. Example of digital printout from data tape
16
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Profiles such as that shown in Figure 5 are related to tem-
perature or moisture data, with variation in turbidity
corresponding to thermal inversion. Lidar data obtained
during the LARPP program, shown in the next section, are
also compared in this way.
NUMERICAL DATA SUMMARY
The primary data tape, as previously described, contains the
digitized analog signals direct from the Lidar receiver,
unprocessed with regard to inversion heights, cloud decks,
or mixing layer depth. Signals recorded are not normalized
for power fluctation and contain the usual 1/R^ dependence.
A second processed tape has been prepared which provides a
numerical interpretation for each of these features in terms
of altitudes of significant layers and approximate mixing
depth.
The criteria used in identifying the echo anomalies can be
quite complicated, often requiring the computation of extinc-
tion values along the entire path. This is especially true
if only automatic data processing methods are used in the
identification process. What is being attempted in the pro-
cessed tape is a classification of the echo anomaly into
mixing layer height or significant levels based on a back-
scatter slope evaluation.
A difference in air mass, as encountered near an inversion
top, would be represented as a change in the rate of signal
extinction given by dP/dR. A significant increase or de-
crease in dP/dR is indicative of the transition between dif-
ferent air masses. Consequently, the rate of change in the
slope dP/dR, or (d/dR) [(dP)/(dR)] will vary from ( + ) to (-)
when encountering this discontinuity in air mass. The mixing
height is established in this instance when
(d/dR) [(dP)/(dR)] changes from ( + ) to (-) when analyzed over
three or more data points. A change in slope (dP)/(dR) from
negative (-) to positive (+) is representative of an aerosol
or moisture layer, but these are termed "significant levels"
as they are usually found at or below the air mass discon-
tinuity.
A scattering medium having a high attenuation, such as char-
acterized by a fog or haze, is manifested in the Lidar return
as having a rapid signal falloff within the near field region
(50 to 300 meters). As the laser pulse penetrates through
this region of turbidity into a clear drier region above, the
backscatter slope changes in magnitude until finally
17
-------
diminished by the 1/R2 factor. This would be classified as
the upper mixing layer boundary unless a second slope anomaly
is found at a higher altitude. The numerical routine for
analyzing the backscatter profiles uses a least square fit
for smoothing the data points and computes a dP/dR over each
15 meter range increment. A nearly constant slope is expect-
ed for the 50 to 300 meter near-field range, with any depar-
tures being recorded as a significant level. Reversals in
sign, from either positive or negative, indicate the presence
of a discontinuity or more commonly a cloud or moisture lay-
er. These can also be separately identified but are here
classified as a significant level. In most all cases exam-
ined, the mixing layer has been shown to be associated with
the region below the temperature inversion base but may some-
times extend upward into the inversion when the temperature
gradient is weak.
All raw data tapes were examined using the numerical analysis
methods and recorded in tabular form. The output format for
these tapes appear as in Figure 6.
Organization is accomplished using operation number and date
as the identifying code.
RANGE NORMALIZED SIGNAL RETURNS
The processed data summary contained in the initial output
tapes may be considered a generalized result based on the
morphology of typical Lidar backscatter returns. The quali-
tative aspects of each backscatter signature are used in
identifying the nature and altitude of inversion bases,
moisture layers, stratus and fog layers. A second iteration
of the basic data, involving a numerical analysis, is needed
to remove the influences of range dependence.
Removing the influence of power fluctuations and daily ex-
tinction variances is done through a normalization procedure,
Utilized in this processing is a computer subroutine for gen-
erating a five-degree polynomial to fit the Lidar raw data.
This subroutine is one locally available and known as BMD05R
in many of the Fortran libraries. It essentially computes
successive degrees of polynomial regression (from first de-
gree to ktn degree, 1 < k < 10) for a set of input data con-
sisting of values of one independent and one dependent vari-
able. Optimal computations and output are a table of re-
siduals, a plot of the given values and a superimposed plot
of the values predicted by the regression equation.
18
-------
DATA TAPE FORMAT
Identification Code
Run No.
12
Time
3456
Location
Coordinates
7890
Lidar
Inclination
Angle
45
45
Case No.
1
2
| 3
I 4
i
Significant
Levels
60m
Mixing Layer
Height
400m
Figure 6. Tape format for numerical data summary
-------
The Lidar data shown in Figure 5 before processing is re-
peated in Figure 7 following the normalization procedure.
The "residual" contains information on extinction or back-
scatter changes separate from the usual effects of beam
divergence within the near field region. Sorie degree of
graininess appears which unfortunately is due to the temporal
resolution qualities of the transient digitizer. Further
smoothing of the residual plot is possible before proceeding
to remove the 1/R2 function. The smoothed residual can also
be incorporated in a three-dimensional plot of a sequence of
daily observations that would provide a visual recognition
of the time-dependent nature of the meteorological features.
The backscatter signals returned to the PMT detector are
dependent in magnitude on the range at which the signal echoes
originate away from the receiver. This is the usual 1/R2
relationship inherent in radar signal processing. The signal
magnitude from two identical targets will appear different in
the data according to their respective range from the receiv-
er.
The preferred method for providing signal conditioning is
similar to that used in radar technology, whereby a pre-
amplifier stage, following the detector, introduces a pro-
grammable range selectable gain. Without having these hard-
ware components available at the onset of the LARPP project,
it was decided to employ software processing following all
data collection. Essentially, a normalization process would
be applied to the data that is derived from the physical
parameters in the Lidar range equation.
20
-------
H-
V
l-l
ft
»d
O
I
H-
0)
0)
rt
Oi
ff
§
y
0)
M
H-
N
(D
(D
CO
H-
0)
60
50
40
30
20
10
5S
O
H
N
H
O
g
CO
H
§
Dots
Line
Observed
Predicted
A / \ /\ A
±
20
40
60 80
Data Points
100
-------
SECTION VII
DISCUSSION OF THE OBSERVED LIDAR DATA
MOBILE LIDAR MISSION DAY - 10/5/73
The humidity trace on the early morning (0532 PDT) radio-
sonde release data clearly showed the upper boundary of a
low level stratus layer to be approximately 357 meters.
Ground haze and fog also persisted throughout the coastal
areas of the Los Angeles basin until late afternoon. Coin-
cident with the altitude of the stratus tops was a tempera-
ture inversion approximately 357 meters above the ground
level. This inversion base was observed to move up to 638
meters later in the day as indicated by the 1210 PDT radio-
sonde release.
Lidar returns taken from the Downey release site between
0730 and 1155 also showed the predominant stratus base be-
ginning at approximately 126 to 145 meters during the early
morning. Overall weather conditions persisted but occasion-
al breaks in the stratus deck allowed Lidar signal penetra-
tion sufficiently well to define the upper surface. The
upper surface altitude varied between 300 and 500 meters
from 0730 to 1100 which corresponded extremely well with the
humidity gradient recorded with the radiosonde. The Lidar
signal attenuation usually encountered during days of fog
and stratus, significantly reduces the signal intensity from
any levels beyond the stratus top. Under certain circum-
stances a very dense fog or stratus will limit the laser ^
beam penetration to several hundred feet within the medium.
This was not the case for October 5, however, as the charac-
teristic backscatter echoes were correlated to the uppermost
boundary.
The reported rise in the inversion base was noted from the
Lidar echoes returned from the tops of the thick moisture
layers near 525 meters at 1200 PDT. Proceeding with the
Lidar van to the northeast later in the day, the levels were
found to decrease somewhat.
All the supportive synoptic and meteorological data for each
of the mission days are presented in the Appendixes A through
F. The radiosonde data and the weather information in the
Los Angeles basin were obtained from the Air Pollution Con-
trol District of Los Angeles County and the U.S. Weather
22
-------
Service. A summary of the comparison of the Lidar mixing
layer height with the meteorological observations is pre-
sented for each mission day. The temporal variations of the
observed Lidar mixing layer heights are tabulated along with
the meteorological data taken at the launch site, LAX and
El Monte Stations. An overall Mobile Lidar Mission Summary
is presented on Chart 2. A daily Lidar operation summary is
presented preceding the mobile Lidar route map for each
mission day. The coordinate grid system of the Los Angeles
basin is presented for reference on the following page. A
graphical presentation of the temporal and spatial varia-
tions of the mixing layer height along the observational
route for each mission day is also shown.
23
-------
NJ
o
I
Cn
CO
rt
.-.... ?-- . ^'^t3T" w^s •'rVm- -t— t.% g^ir"""
\ i. i^ • - • - 7 ^3k 3 K,*..•..' j^if.~ a&f... ~.
-------
Chart 2. MOBILE LIDAR MISSION SUMMARY
Mission
date
1973
10/5
10/10
10/11
10/12
10/15
10/16
10/17
10/18
10/24
10/25
10/26
10/27
10/29
10/30
10/31
11/1
11/2
11/5
11/6
11/7
Launch
Site
J
J
A
A
J
A
A
J
J
J
A
A
A
J
J
A
A
A
J
J
A
A
A
Time
1200
0830
0800
0930
0940
1315
0930
0915 (1)
1135 (2)
0900
0845
1000
0900
0830
0830
0830
0742 (1)
1145 (2)
1151
0715
0735 (1)
1105 (2)
0830
Observation
Start
time
0704
0800
0755
0856
0725
1213
0930
0802
0800
0740
0850
0758
0725
0731
0745
0625
0925
0659
0630
0749
End
time
1512
1505
1259
1436
1440
1534
1617
1440
1318
1426
1560
1237
1319
1105
1056
1406
1412
1440
1323
1417
Site J - Downey
Site A - Los Angeles
(1) - First launch
(2) - Second launch
25
-------
Chart 3. COMPARISON Ci?' LIDAR iilXIUG LAYER HlilGHT T7ITH METEOROLOGICAL OBSERVATIONS
RUN 1 10/5/73
TIME
0600
0700
0800
0900
1000
1100
1200
1300
1400
1500
1600
LAUNCH SITE
Zb *t °Pb DPt
320 380 320 380
LAX
Jb Jt Dpb DPt vS
357 997 467 >600 0.5
0.5
1.0
1.0
1.0
1.8
638 1086 638 687 2.0
2.5
2.5
3.0
EL MONTE
Jb Xt DPb DPt
378 749 457 570
597 969 649 969
LIDAR
MLH
400-450
350-400
275-350
400-500
400-500
400-500
300-400
275-325
NOTE
t
DP
Vsb
MLH
Inversion base (meters)
Inversion top (meters)
Lower altitude of gradient change in dewpoint (meters)
Upper altitude of gradient change in dewpoint (meters)
Visibility at the surface (miles)
Mixing layer height (meters)
-------
Chart 4. SUMMARY OP OPERATION
MISSION DAY 10/5/73
L.A. BASIN
GRID POSITION
TIME
0600
0704
0836
0913
0914
1000
1036
1100
1130
1155
1200
1233
1241
1338
1340
1341
1425
1457-
1510
1511
1512
1745
LIDAR
ON OFF
*
*
*
it
*
*
*
*
*
*
*
-
*
*
*
*
*
*
*
COORDINATES
X Y REMARKS
Left Lidar Base
31 47 Launch site "J" Downey
n .n
n n
n n
ii n
n ,«
n n
n n
n . n
* »
" " Launch
29 52 . Long Beach Fwy. & Florence Ave.
Bell.
ii n
33 66 Long Beach Fwy. 7 to San Bernar-
dino Fwy. 10 to Atlantic. Nortl
to Main St. in Alhambra.
n M
n n
34 73 North on Atlantic, up Los Roble,
to E. Orange Grove & turn east
to Lake in Pasadena.
40 " Sierra Madre
42 " Continued east on E. Orange
Grove 1% miles. Sierra Madre.
n n
n n
'Arrived @ Lidar Base.
27
-------
Figure 8. Mobile Lidar route map
Mission day 10/5/73
28
-------
ONDO BEAC
>VILLA P»RK
Figure 9. Mixing layer height along observational route
Mission day 10/5/73
29
-------
MISSION DAY - 10/10/73
Lidar returns taken in the early morning near Downey indi-
cated the presence of moisture-laden particulates aloft
extending to about 610 meters altitude at 0820 PDT. The
variability in height of the backscatter levels in the Lidar
data are possibly indicative of a weak temperature gradient
existing from a ground-based inversion.
Radiosonde data from 0542 PDT showed an inversion top at
approximately 598 meters along with a sharp reduction in
moisture content in the air above 598 meters. A stronger in-
version developed after mid-morning when the reported base
was 226 meters and top was 287 meters. By 12 noon, the Lidar
data revealed mixing depth to be approximately 213 to 305
meters above the surface over the Fullerton/Anaheim area.
Local weather was clear skies by 1100 PDT along with a re-
duction in absolute moisture above 287 meters. Throughout
the distance traveled from Downey to the Orange Freeway in
Fullerton, backscatter from the inversion base altitude fluc-
tuated over a 168 meter range indicating some variability in
space and time. High peak values for the mixing depth near
Pomona and Orange Freeway possibly indicated strong vertical
mixing produced by air parcel heating from high ground temper-
atures. Wind conditions were generally mild (6-12 kts)
throughout the afternoon. The average mixing depth remained
about 274 meters throughout the afternoon.
30
-------
Chart 5. COMPARISON OF LIDAR MIXING LAYER HEIGHT WITH METEOROLOGICAL OBSERVATIONS
RUN 2 10/10/73
TIME
0600
0700
0800
0900
1000
1100
1200
1300
1400
1500
1600
LAUNCH SITE
Xb Jt °Pb °Pt
400 450 N.A. N.A.
LAX
I. I. DP. DP^ ?rf°,
b t b t Vsb
Sfc 598 287 406 4.0
4.0
6.0
10
12
20
226 287 83 287 25
25
25
25
EL MONTE
Jb Zt DPb DPt
Sfc 707 408 707
Equipment Failure
-
LIDAR
MLH
400-600
200-250
200-400
150-250
200-300
200-300
200-250
(Jj
NOTE
t
Dpb
DPt
Vsb
MLH
Inversion base (meters)
Inversion top (meters)
Lower altitude of gradient change in dewpoint (meters)
Upper altitude of gradient change in dewpoint (meters)
Visibility at the surface (miles)
Mixing layer height (meters)
-------
Chart 6. SUMMARY OF OPERATION
MISSION DAY 10/10/73
1057
1108
1110
1116
1119
1124
L.A. BASIN
GRID POSITION
TIME
0645
0800
0823
0830
0857
0900
0905
0908
0910
0925
0930
0931
0935
0937
094*1
0945
0955
LIDAR
ON OFF
COORDINATES
X Y
*
REMARKS
Left Lidar Base
31 47 Arrived @ Launch site "J"
*
*
*
*
*
*
*
Downey .
ii n
11 " Launch
26 36 South on
Wardlow
ii n
M n
n it
37 31 South on
-
Long Beach Fwy. 7 to
in Long Beach.
San Diego Fwy. 405 to
Seal Beach Blvd. in Seal Beach.
*
*
*
*
*
*
n n
it n
n n
n n
n n
n M
45 30 South on
San Diego Fwy. 405 to
Garden Grove Fwy. 22 to Knott
0957
1000
1005
1008
1011
1013
1053
*
*
*
*
*
*
offramp
n n
M n
M ii
n ii
n n
n n
46 41 East on
in Garden Grove.
•
Garden Grove Fwy. to
Beach 39, North to Santa Ana
Fwy. 5 in Buena Park.
52 39 South on Santa Ana Fwy. 5, East
on Riverside Fwy. 91 to Harbor
offramp in Fullerton. East on
. Riverside Fwy. to Orange Fwy.
57.
*
*
*
*
*
32
-------
Chart 6 (continued). SUMMARY OF OPERATION
MISSION DAY 10/10/73
L.A. BASIN
GRID POSITION
TIME
1127
1129
1139
1147
1153
1200
1203
1220
1224
1233
1237
1244
1248
1310
1315
1322
1323
1337
1445
1453
1457
1503
1505
1900
LIDAR
ON OFF
* ,
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
COORDINATES
X X REMARKS
52 39
n n
57 57 Just South of Placentia.
n n
n n
n n
n n
57 46 North on Orange Fwy. 57 to
Imperial off ramp in Fullerton.
n M
n n
n n
n n
n it
63 58 North on Orange Fwy. 57, East
on Pomona Fwy. 60 and off at
Diamond Bar.
n n
n n
H ii
n n
86 58 East on Pomona Fwy. 60 to
Milliken offramp due South of
Ontario Motor Speedway.
n n
n n
n n
n n
Arrived @ Lidar Base
33
-------
Figure 10,
Mobile Lidar route map
Mission day 10/10/73
34
-------
600
Figure 11.
Mixing layer height along observational route
Mission day 10/10/73
35
-------
MISSION DAY - 10/11/73
The meteorological conditions on the llth represented a day
of significant contrasts beginning with stable temperature
lapse condition at 0700 PDT and changing to unstable condi-
tions in late morning (1100 PDT). An elevated haze layer was
indicated from visual observations made at the launch site,
which was verified by the existence of a weak upper level
temperature inversion between 226 and 418 meters. The late
morning, 1100 PDT, radiosonde release showed this condition
to have disappeared and an overall neutral temperature pro-
file to evolve.
Lidar returns recorded at the launch site between 0750 and
0820 PDT revealed the existence of a 100 meter thick layer
beginning at approximately 320 meters above the surface.
During the next two hours, weak echoes signifying another
interface were occasionally observed above this altitude
although no comparable evidence was found from the radio-
sonde profiles.
Beginning with the 0845 PDT Lidar returns, a breakup of the
layered structure was manifested by random echoes occurring
at various altitudes. It is probable that during that time,
a shift to neutral temperature condition occurred.
Minor maintenance problems during the morning temporarily
deferred taking Lidar data from 0950 to 1155 PDT. Resuming
Lidar operation, this time in the Malibu foothills, a differ-
ent layering was discovered. Most likely this layering at
440 to 525 meters (a.g.l.) represents the orographic uplift-
ing presented to the onshore marine particulates by the Malibu
cliffs.
36
-------
Chart 7. COMPARISON OF LIDAR MIXING LAYER HEIGHT WITH METEOROLOGICAL OBSERVATIONS
RUN 3 10/11/73
TIME
0600
0700
0800
0900
1000
1100
1200
1300
1400
1500
1600
LAUNCH SITE
Jb Jt DPb DPt
Sfc 390 none
>
LAX
Jb *t DPb Dpt vfb
Sfc 168 Sfc 67 12
10
5
5
5
4
none none 5
6
12
14
EL MONTE
Jb Zt DPb DPt
Sfc 637 none
none none
LIDAR
MLH
300-400
300-400
175-300
N.A.
N.A.
400-500
400-500
OJ
NOTE I, Inversion base (meters)
D
Inversion top (meters)
Lower altitude of gradient change in dewpoint (meters)
.t Upper altitude of gradient change in dewpoint (meters)
Vsb Visibility at the surface (miles)
MLH Mixing layer height (meters)
t
DP
DP
-------
Chart 8. SUMMARY OF OPERATION
MISSION DAY 10/11/73
L.A. BASIN
GRID POSITION
TIME
0600
0755
0759
0803
0804
0807
0811
0815
0820
0845
0849
0850
0856
0858
0859
0927
0934
0940
0943
0945
1027
1155
1200
1201
1206
1213
1218
1224
1244
1253
1259
LIDAR COORDINATES
ON OFF X Y REMARKS
Left Lidar Base
* 24 59 Launch site "A" Downtown L.A.
* ii . n
* n M
* n n
* n n
* » "
ju |l II
* ii ii
* 6 59 West on Santa Monica Fwy. 10 to
San Diego Fwy. 405 in West Los
Angeles.
* " »
* " "
* n n
* M n
* " "
* 0 57 Continued on Santa Monica Fwy.
to the ocean in Santa Monica.
* n n
* " "
* •• "
* ,M n
Arrived d> Apollo for checkup.
* 16 59 North on Pacific Coast Hwy. 1
to Malibu, Pepperdine College.
* " "
* n n
* " "
* » "
^t . M II
* " " . .
* " ••
* ii M
* M n -
38
-------
Figure 12.
Mobile Lidar route map
Mission day 10/11/73
39
-------
PALOS VERDES ESTATESt '...
Figure 13. Mixing layer height along observational route
Mission day 10/11/73
40
-------
MISSION DAY - 10/12/73
A moderate to thick upper level haze persisted along the
coastal areas throughout most of the day. Skies were gen-
erally free of clouds. An early morning ground-based inver-
sion with tops around 598 meters kept this moist air trapped
within the L.A. basin. A definite moisture gradient was
noted in the early morning sounding beginning at 318 meters.
By the time of the 1130 PDT radiosonde release, the inversion
temperature base had risen to 397 meters with a 687 meter top,
A lower humidity content was also reported inland near Bur-
bank, indicating a horizontal moisture gradient existed be-
tween the coastal areas and the foothills.
i
Lidar data taken at the downtown L.A. launch site revealed a
lower level haze and fog indicated by severe attenuation of
the backscatter signal. A slight layer penetration was indi-
cated on each return between 0930 to 1000 PDT with the prob-
able tops occurring at about 412 meters. The indicated de-
crease in backscatter content at this altitude directly sup-
ports the fact that fewer water particulates were available
to provide scattering.
The Lidar observing location near midday was at a signifi-
cantly higher altitude (500 meters) than previously, and
subsequently the layers detected were somewhat higher than
before.
41
-------
Chart 9. COMPARISON OF LIDAR MIXING LAYER HEIGHT WITH METEOROLOGICAL OBSERVATIONS
RUN 4 10/12/73
TIME
0600
0700
0800
0900
1000
1100
1200
1300
1400
1500
1600
LAUNCH SITE
Jb *t DPb °Pt
50 490 none
LAX
Jb Xt DPb DPt vfS
Sfc 598 318 437 4
4
3
3
3
4
397 687 397 467 5
12
12
12
EL MONTE
Jb Xt DPb °Pt
Sfc 728 none
Equipment Failure
LIDAR
MLH
350-450
none
450-550
450-550
200-300
NOTE
Dpt
Vsb
Inversion base (meters)
Inversion top (meters)
Lower altitude of gradient change in dewpoint (meters)
Upper altitude of gradient change in dewpoint (meters)
Visibility at the surface (miles)
MLH Mixing layer height (meters)
-------
Chart 10. SUMMARY OF OPERATION
MISSION DAY 10/12/73
1420
1421
1436
1845
L.A. BASIN
GRID POSITION
TIME
0715
0856
0918
0924
0927
0930
0935
0938
0942
0943
0949
0957
0959
1003
1004
1123
1124
1143
1202
1222
1224
1235
1240
1258
1259
1302
1318
1328
1335
1336
1417
LIDAR
ON OFF
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
COORDINATES
X Y REMARKS
Left Lidar Base
24 60 Launch Site "A" Downtown L.A.
n • n
n M
n M
" " Launch
n n
n n
ii n
n • n
n n
n n
it ii
n n
n ii
2 70 West on Santa Monica Fwy. 10 to
San Diego Fwy. 405, North to
Mulholland Drive.
n n
n n
ii n
n n
n n
n n
n n
5 73 North on San Diego Fwy. 405,
East on Ventura Fwy. 101 to
Van Nuys Blvd. in Sherman Oaks.
n n
n n
n n
ii n
n n
n n
10 '79 East on Ventura Fwy. 101. North
on Hollywood Fwy. 170, East on
Sherman Way, North on Lankershim
Way to Saticoy in Sun Valley.
Arrived (§> Lidar Base
43
-------
Figure 14. Mobile Lidar route map
Mission day 10/12/73
44
-------
600
MANHATTAN BEACH
Figure 15. Mixing layer height along observational route
Mission day 10/12/73
45
-------
MISSION DAY - 10/15/73
The snoptic conditions for the 15th were such that no sig-
nificant meteorological changes occurred during the day in
temperature, wind speed or direction, or humidity. These
conditions were manifested in the Lidar returns by observing
only minor altitude variations in the mixing depth over the
time span from 0730 to 1440 PDT.
Early morning fog and haze were present which limited the
Lidar ceiling at 0730 to about 213 meters above the surface.
This was due to the high order of scattering and attenuation
of the laser pulse by the suspended aerosols. Radiosonde
data placed this early morning inversion base at 196 meters
with tops near 568 meters. Lidar returns from 0820 until
1400 PDT revealed strong layering near the inversion base
or 275 meters, and the region above being overlaid with
cleaner air. This meteorological condition produced a sig-
nificant decrease in backscatter above 365 meters altitude.
Strong trapping seems to have promoted the formation of two
distinct aerosol layers especially at 0738 PDT.
Radiosonde data for 1130 PDT also revealed a strong tempera-
ture gradient of 11 to 12 degrees C, between the inversion
base and top. This probably explains the significant partic-
ulate trapping or layering, which was revealed from Lidar
data, near the base of the inversion.
This was a typical marine layer day. Early morning fog and
stratus in the lowest 200 meters gave way to haze and smoke
by 1000 PDT. Onshore winds, 5-9 mi/hr prevailed during the
late morning and afternoon hours.
The radiosonde observation at the launch site (Downey), 0637
FDT, put the inversion base at 230 meters above the ground.
The Lidar (Downey 31-47) at 0737 PDT indicated that the top
of the aerosol layer was at 200 meters. Taking into con-
sideration the time and space differences of these two obser-
vations, this is fair agreement.
The Lidar showed a gradual increase in the depth of the
ground-based aerosol layer from 0737 PDT to 1128 PDT at which
time a helicopter temperature profile put the inversion base
at 275 meters, the same level at which the Lidar detected the
top of the aerosol layer. The radiosonde observation made at
this time (1130 PDT) at Los Angeles International Airport
(LAX) reported the inversion base at 177 meters. This showed
the typical daytime increase of depth of the .marine (aerosol)
layer with distance inland. LAX is,28 miles west of the
46
-------
location occupied by the Lidar at 1128 PDT. In general the
variations in the mixing height along a line parallel to the
coast are not as severe as on a line normal to the coast,
barring other orographic effects.
At 1143 PDT another helicopter temperature sounding was
taken. Again the height of the base of the temperature in-
version was 275 meters. But now the Lidar began to detect
a scattering of the returns from the top of the aerosol
layer ranging from 245 to 360 meters. By 1230 PDT, the time
of the next helicopter sounding, two layers of aerosols had
emerged as seen by Lidar, one at 185 meters, the other at
320 meters. A small temperature inversion was found at 165
meters and another at 225 meters. Temperature data was not
available above that level. At 1250 PDT, however, another
sounding was taken by helicopter and this one reached 325
meters. The small inversion, previously detected at 225
meters, was no longer present at that level and no longer
was the top of an aerosol layer. Instead, the aerosol pro-
file had simplified with a single layer topping out at 350
meters. It is unfortunate that the helicopter did not pene-
trate the top of the aerosol layer in this case.
The last Lidar measurements were made from 1346 to 1440 PDT
at a site on the north side of the hills that extend east
from Whittier to the Santa Ana River and about one mile west
of the river. Helicopter temperature soundings were not
taken at this place and time. The Lidar revealed that the
top of the aerosol layer on this side of the hills was 100
meters lower than that observed an hour earlier just south
of the hills. The marked change in terrain seems the most
plausible source of the difference in depth of the aerosol
layer. For best comparison with inversion data, consider
the 1230 PDT El Monte radiosonde data. El Monte is also on
the north side of these hills but is 11 miles west northwest
of the Lidar site at 1346 PDT. The raob also was taken an
hour earlier than the Lidar observations. Bearing in mind
these spatial and temporal differences of the two observa-
tions, the inversion base at 200 meters compared reasonably
well with the top of the aerosol layer at about 250 meters.
It is apparent from these data for the morning and afternoon
of October 15, 1973 that the better the time and place match-
up of the inversion base and aerosol layer top measurements,
the better their correspondence.
47
-------
Chart 11. COMPARISON OF LIDAR MIXING LAYER HEIGHT WITH METEOROLOGICAL OBSERVATIONS
RUN 5 10/15/73
TIME
0600
0700
0800
0900
1000
1100
1200
1300
1400
1500
1600
LAUNCH SITE
Zb *t °Pb DPt
230 480 230 330
LAX
Zb *t DPb DPt vfb
196 368 196 296 0.2
0.5
0.5
0.8
2.0
3.0
177 567 238 287 3.0
3.0
8.0
. 8.0
EL MONTE
Jb *t DPb °Pt
Equipment Failure
. -
228 838 228 378
LIDAR
MLH
200-225
225-275
250-275
275-300
275-375
250-375
350-425
200-300
200-300
00
NOTE I, Inversion base (meters)
I. Inversion top (meters)
DP, Lower altitude of gradient change in dewpoint (meters)
DPt Upper altitude of gradient change in dewpoint (meters)
Vsb Visibility at the surface (miles)
MLH Mixing layer height (meters)
-------
Chart 12. SUMMARY OF OPERATION
1229
1246
1302
1306
1323
1346
*
*
*
*
MISSION DAY 10/15/73
L.A. BASIN
GRID POSITION
TIME
0600
0725
0738
0745
0748
0805
0820
0822
0834
0836
0855
0858
0923
0927
0935
0936
0940
0957
1006
1045
1102
1105
1124
1148
1204
1205
1228
LIDAR
ON OFF
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
COORDINATES
X Y
31 47
II II
II II
II II
II It
II II
II II
II II
II II
II II
II II
II II
II II
It II
II II
II II
30 58
II II
43 43
ii ii
n n
n it
n n
M it
It M
57 42
REMARKS
Left Lidar Base
Arrived d> launch site "J"
Downey .
Launch
North on Long Beach Fwy. 7 to
Santa Ana Fwy. 5.
South on Santa Ana Fwy. 5 to
Valley View Ave. in La Mirada.
Rosecrans & Bellflower
South on Santa Ana Fwy, 5, East
on Riverside Fwy. 91, North on
Orange Fwy. 57 to Nutwood off-
ramp in Fullerton.
59 55
North on Orange Fwy» 57, West
on Pomona Fwy. 60 to Water St.
offramp in Industry.
49
-------
Chart 12 (continued). SUMMARY OF OPERATION
MISSION DAY 10/15/73
L.A. BASIN
GRID POSITION
TIME
1349
1350
1407
1408
1424
1425
1440
1645
LIDAR
ON OFF
*
*
*
*
*
*
*
COORDINATES
X X REMARKS
59 55
n M
ii ii
n n
n n
n n
n M
Arrived @> Lidar Base
50
-------
Figure 16.
Mobile Lidar route map
Mission day 10/15/73
51
-------
600
CP
Figure 17.
Mixing layer height along observational route
Mission day 10/15/73
52
-------
MISSION DAY - 10/16/73
Early morning conditions began with fog and low ceiling
causing limited visibility to exist throughout most of the
Los Angeles basin. A surface based inversion existed within
the central Los Angeles region and sloped upward toward the
coastline reaching a height of 177 meters at 0540. The tem-
perature profile obtained at the launch site also revealed a
surface inversion base. Some stratus and light haze and fog
persisted throughout the day. Radiosonde data for El Monte
at 1345 PDT showed a strong gradient at the inversion base at
307 meters with a corresponding reduction in moisture content
above that height.
Lidar operation began at approximately 12 noon near launch
site "A" in central Los Angeles. The remnants of the early
morning fog were evident in all the returns, with indications
that opacity of the haze was not sufficient to fully attenuate
all of the scattered energy. The characteristic boundary
separating the upper level dry air from the moist air beneath
the inversion was indicated in the raw data. The boundary
height corresponds closely with the inversion base reported
by the 1340 PDT El Monte radiosonde.
The route followed by the Lidar van from noon until 1530 PDT
closely parallels the San Gabriel Mountains. Some degree of
influence by terrain features was evidenced by a gradual
height increase of the inversion boundary as the observation
point proceeded toward the mountains.
53
-------
Chart 13. COMPARISON OF LIDAR MIXING LAYER HEIGHT WITH METEOROLOGICAL OBSERVATIONS
RUN 6 10/16/73
TIME
0600
0700
0800
0900
1000
£ 1100
1200
1300
1400
1500
1600
LAUNCH SITE
I. I. DP, DP.
b t b t
Sfc 600 Sfc 150
LAX
I I DP DP Sfc
xb At Wib u*t Vsb
177 616 92 200 00
0.2
0.8
1.0
1.0
1.2
177 677 177 23a 1.5
2.5
3.0
3.0
.
EL MONTE
Ib It DPb DPt
Sfc 649 167 289,
307 557 307 359
•
LIDAR
MLH
275-375
300-375
275-375
NOTE
t
DP
Vsb
MLH
Inversion base (meters)
Inversion top (meters)
Lower altitude of gradient change in dewpoint (meters)
Upper altitude of gradient change in dewpoint (meters)
Visibility at the surface (miles)
Mixing layer height (meters)
-------
Chart' 14. SUMMARY OF OPERATION
MISSION DAY 10/16/73
L.A. BASIN
GRID POSITION
TIME
1040
1213
1220
1222
1228
1229
1235
1236
1240
1245
1248
1251
1252
1254
1258
1259
1302
1303
1304
1305
1340
1341
1342
1343
1348
1351
1352
1354
1356
1412
1417
1419
1427
1428
1431
1438
1439
1440
1443
1444
LIDAR COORDINATES
ON OFF X Y REMARKS
Left Lidar Base
24 59 Launch site "A" Downtown L.A.
* n M
* . n n
* n n
* n n
* " «
* •• ••
* " "
* ii n
1c ii ii
* •' "
* •' •'
* " "
* » "
* « "
* " "
* " "
* " "
* " "
* 28 68 North on Golden State Fwy. 5,
North on Pasadena Fwy. 11 to
Ave. 57 off ramp in Highland
Park.
* " •«
* n n
* " "
* ii n
if ii n
* n n
* n n
* " "
* 32 70 North on Pasadena Fwy. 11 to
end of Freeway in Pasadena.
* » »
* " "
* n n
* " "
* » "
* ii n
* " "
* •• ••
* " "
* " "
55
-------
Chart 14 (continued). SUMMARY OF OPERATION
MISSION DAY 10/16/73
L.A. BASIN
GRID POSITION
LIDAR COORDINATES
TIME ON OFF X X REMARKS
1530 * 50 70 North on: Arroyo Parkway, East
on Colorado Blvd. 60, to Foot-
hill Fwy. 210 to Buena Vista
offramp in Duarte.
1531 *
1532 * ,, ...
1534 * ....
2330 Arrived @ Lidar Base
56
-------
Figure 18.
Mobile Lidar route map
Mission day 10/16/73
57
-------
600
—K E-'U L L E RTONpygEN
Sen ~-~-l _h=i>ro r- c».
Figure 19.
Mixing layer height along observational route
Mission day 10/16/73
58
-------
MISSION DAY - 10/17/73
Early morning fog and stratus were blanketing all coastal
areas and as far inland as Burbank and central Los Angeles.
The 0500 PDT radiosonde records for both LAX and El Monte
show humidity values decreasing appreciably above 200 meters
indicating the wide spatial extent of the upper level mois-
ture layer. A low level, 77 meters, inversion base existed
near the coast but was surface based in El Monte and the
launch site in central Los Angeles. The typical temperature
inversion top was also present above the moisture layer at
about 446 meters, rising to a height of 688 meters near the
mountains.
The characteristic signal returns from a combination moisture
and pollution layer were evident in the Lidar data from 0930
to 1350 PDT. The base of this layer remained consistently
within the 300 to 500 meter altitude region from 0930 to ap-
proximately 1300 PDT. This base is indicated on the chart.
Following that time, the boundary appeared to dissipate or
became intermixed with the low level haze already present.
Penetration through this layer to drier air above was re-
vealed by the scattering discontinuity. The moisture profile
from the El Monte radiosonde record was seen to correspond
with the heights given here. Also at 1350 PDT, the energy
from the laser began dropping and resulted in what appeared
to be a decrease in the moisture gradient boundary. This sit-
uation was not remedied in time before two hours of data re-
cording had elapsed.
59
-------
Chart 15. COMPARISON OF LIDAR MIXING LAYER HEIGHT WITH METEOROLOGICAL OBSERVATIONS
RUN 7 10/17/73
TIME
0600
0700
0800
0900
1000
1100
,1200
1300
1400
1500
1600
LAUNCH SITE
*b Jt DPb DPt
Sfc 420 100 420
100 300 100 300
LAX
-------
Chart 16. SUMMARY OF OPERATION
MISSION DAY 10/17/73
TIME
LIDAR
'ON OFF
L.A. BASIN
GRID POSITION
COORDINATES
X Y
REMARKS
0715
0930
0936
0937
0939
0944
0946
0948
0951
0952
0956
0957
1000
1001
1021
1023
1024
1028
1031
1032
1032
1113
1114
1115
1122
1128
1130
1131
1134
1135
1149
1153
1154
1158
1159
1200
24
59
*
*
*
*
*
*
*
*
*
*
*
31
n
57
*
*
*
*
26
34
*
*
*
*
*
*
*
*
*
*
*
*
Left Lidar Base
Launch site "A" Downtown L.A,
North on Long Beach Fwy. 7,
North on Atlantic to Santa Ana
Fwy..5.
South on Atlantic to Santa Ana
Fwy., South on Santa Ana Fwy.
to Willow in Long Beach.
30
34
East on Willow to Walnut in
Signal Hill.
61
-------
Chart 16 (continued). SUMMARY OF OPERATION
MISSION DAY 10/17/73
L.A. BASIN
GRID POSITION
TIME
1203
1206
1208
1211
1212
1215
1215
1304
1306
1307
1310
1311
1340
1342
1345
1346
1351
1354
1355'
1356
1414
1416 '
1444
1446
1447
1449
1452
1453
1456
1457
1458
1504
1509
1519
1525
LIDAR COORDINATES
ON OFF X X REMARKS
* 30 34
* n ii
* M II
* II II
* II II
* " "
* " "
* 36 32 East on Willow to Studebaker Rd.
South to Atherton in Long Beach
just West of 405 & 605 Freeways.
* " "
* " "
* n n
* " "
* 45 38 North on San Gabriel River Fwy.
605, East on Artesia Fwy. 91 to
Knott off ramp in Buena Park.
* n n
* n n
* •• »
* •• «
* n n
* n n
* " " East on Artesia Fwy. 91 to State
* 56 39 College 250 in Anaheim.
* ," "
* 74 40 East on Riverside Fwy. 91 to
Gypsum 2 miles West of Orange -
Riverside County Line.
* ii n
* " "
* n n
it n n
* " »
* " "
* n n ,
* " »
* . H n
* " "
* " »
£ II . II
62
-------
Chart 16 (continued). SUMMARY OF OPERATION
MISSION DAY 10/17/73
L.A. BASIN
GRID POSITION
LIDAR COORDINATES
TIME ON OFF X X REMARKS
1551
1607
1610
1613
1615
1617
2000
*
*
*
*
*
*
74 40 On Move - Riverside Fwy.
" " Orange County line
" " Green River Rd.
" " Serf as Club Drive.
" " Lincoln Ave.
ii ii
Arrived d> Lidar Base
63
-------
Figure 20.
Mobile Lidar route map
Mission day 10/17/73
64
-------
600
Figure 21. Mixing layer height along observational route
Mission day 10/17/73
65
-------
MISSION DAY - 10/18/73
Weather conditions for Los Angeles and vicinity were uni-
form throughout the basin for ground temperature, humidity
and winds. Some early morning haze was indicated near the
coast, and skies contained some upper level clouds during
the morning and late afternoon.
Radiosonde data for both LAX and El Monte showed a surface
based inversion at 0530 PDT. Higher ground temperatures at
midday contributed to an altitude increase in the inversion
base by 68 meters along the coast, but created a near-adia-
batic condition in the interior regions. Very light surface
winds, less than 5 knots, prevented any maintenance of the
inversion condition by the cooler marine layer. The LAX
radiosonde data at 1130 PDT recorded the inversion top at
approximately 570 meters, only slightly higher than the pre-
vious sounding.
The Lidar backscatter profiles all appeared to undergo
measurable attenuation, as encountered in a fog or water/
haze atmosphere. Detected near ground level at the launch
site was the existence of echoes indicative of stratification
similar to trapping at the inversion base. It is likely that
the inversion base was above ground for that morning, but
was not within the temperature resolution limits for the
radiosonde. The echoes returned from this region began fluc-
tuating in altitude after 1000 PDT, becoming weaker and dis-
appearing altogether after 12 noon.
The significance of the upper level data does not appear
directly related to the temperature structure but rather to
a discontinuity between air masses. Some fallof in moisture
concentration at this level was found in the radiosonde pro-
files. However, the existence of significant attenuation
that appeared in the backscatter returns is cause to suspect
a combination of moisture and absorbing mechanisms that
could have been distributed beneath the inversion top.
On the return to the launch site at about 1135 PDT, an ele-
vated layer between 205 and 377 meters (a.g.l.) was again
detected. Moving eastward to La Miracia, discontinuties still
appeared from this altitude although no definitive indication
of moisture or temperature inversion could be found.
66
-------
Chart 17. COMPARISON. OF LIDAR MIXING LAYER HEIGHT WITH METEOROLOGICAL OBSERVATIONS
RUN 8 10/18/73
TIME
0600
0700
0800
0900
1000
1100
1200
1300
1400
1500
1600
LAUNCH SITE
Jb Jt DPb DPt
Incomplete
LAX
Jb *t Dpb Dpt vJS
Sfc 348 68 110 4
4
10
8
8
8
68 568 none 7
10
10
20
EL MONTE
Xb Jt DPb DPt
Sfc 469 54 109
none none
LIDAR
MLH
350-600
475-550
475-550
425-500
250-475
300-375
300-375
NOTE
t
DPb
DPt
Vsb
MLH
Inversion base (meters)
Inversion top (meters)
Lower altitude of gradient change in dewpoint (meters)
Upper altitude of gradient change in dewpoint (meters)
Visibility at the surface (miles)
Mixing layer height (meters)
-------
Chart 18. SUMMARY OF OPERATION
MISSION DAY 10/18/73
L.A. BASIN
GRID POSITION
TIME
0700
0802
0826
0828
0833
0836
0837
0845
0846
0853
0854
0855
0857
0915
0937
0938
0941
0942
0945
0946 -
0949
1006
1007
1009
1035
1036
1037
1040
1041
1047
1050
1051
1052
1055
1056
1059
LIDAR
ON OFF
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
COORDINATES
X Y . REMARKS
Left Lidar Base.
31 47 Launch Site "J" Downey.
n M
n M
n n
t
n n
n n
n n
n n
n n
n n
n n
" " Launch
28 36 South on Long Beach Fwy. 7,
South on Long Beach Blvd. to
Carson in North Long Beach.
n n
n n
n n
n ii
ii n
ii n
29 38 East on Carson, North on Orange
to San Antonio Drive.
n n
M n
30 29 South on Orange to Ocean, East
to Cherry.
II II
II M • .
M II
II II
II It
II M
II II
II II
II II
II II
It II
68
-------
Chart 18 (continued). SUMMARY OF OPERATION
MISSION DAY 10/18/73
L.A. BASIN
GRID POSITION
TIME
1136
1137
1138
1139
1143
1144
1147
1148
1151
1152
1153
1154
1225
1226
1231
1232
1233
1240
1241
1247
1249
1250
1251
1322
1324
1325
1353
1355
1356
1357
1425
1426
1428
1429
1437
1438
1439
1440
LIDAR COORDINATES
ON OFF X X REMARKS
* 31 47 Return to Launch Site.
* " »
* « "
* n ii
* n n
* n n
* " ••
* n M
* •• "
* •• "
* " "
* " "
* 44 46 Imperial Hwy. in La Mirada
* n n
* '• »
* « ii
* " ii
* " "
* ii n
* " "
* " "
* " "
* M n
* 45 51 Whittier Blvd. 72 & Colima Rd.
N 8.
* » ii
•**'•"
* 52 55 La Puente.
* " "
* MM
* » I'
* 53 63 In West Covina, San Bernardino
Fwy. & Hwy. 39.
* » "
* " ii
* " »
•je n M
* " »
* » ^ ii
•^ ii n
69
-------
1st launch - 0915 - 1033
2nd launch - 1135 - 1425
Figure 22. Mobile Lidar route map
Mission day 10/18/73
70
-------
1st launch - 0915 - 1033
2nd launch - 1135 - 1425
Figure 23. Mixing layer height along observational route
Mission day 10/18/73
71
-------
MISSION DAY - 10/24/73
The early morning meteorological conditions at the launch
site revealed a surface based inversion topped by a second
inversion base at approximately 520 meters. This temperature
structure was significantly different compared to the LAX
0532 PDT radiosonde data or the El Monte 0656 PDT data. A
significant amount of moisture was detected in all cases to
altitudes in excess of 800 meters. Wind directions changed
along the coast and inland between morning and afternoon
hours, adding ground level moisture and maintaining some
haze and obscured visibility. A well developed inversion
also appeared in the afternoon (1130 PDT) LAX sounding, with
a base at 138 meters and top at 558 meters (a.g.l.).
The early morning (0828 PDT) Lidar data revealed remnants of
the multiple inversion base. Scattering appeared randomly
distributed between the 503 meter level and 777 meter level.
Throughout the next three hours, the indicated significant
levels drop in altitude in agreement to what was observed in
the radiosonde profiles.
The Lidar returns from 1114 to almost 12 noon, were consis-
tently layered between 475 and 560 meters (a.g.l.) indicating
a strong trapping condition for any particulates. This level,
when corrected for regional differences in altitude, corre-
sponded to the reported temperature inversion base.
72
-------
Chart 19. COMPARISON OF LIDAR MIXING LAYER HEIGHT WITH METEOROLOGICAL OBSERVATIONS
RUN 10 10/24/73
TIME
0600
0700
0800
0900
1000
1100
1200
1300
1400
1500
1600
LAUNCH SITE
Jb Jt DPb DPt
Sfc 170
Incomplete
LAX
Jb Jt DPb Dpt vfb
796 1129 796 949 15
12
12
12
12
8
138 558 none 10
12
12
30
/•
EL MONTE
Jb Jt DPb °Pt
Sfc 408/1167 Q32 116?
554 749 554 609
LIDAR
MLH
400-800
500-600
400-600
450-575
350-550
350-475
•J
U)
NOTE
t
DPb
DPt
Vsb
MLH
Inversion base (meters)
Inversion top (meters)
Lower altitude of gradient change in dewpoint (meters)
Upper altitude of gradient change in dewpoint (meters)
Visibility at the surface (miles)
Mixing layer height (meters)
-------
Chart 20. SUMMARY OF OPERATION
MISSION DAY 10/24/73
L.A. BASIN
GRID POSITION
TIME
0700
0800
0829
0836
0837
0840
0842
0847
0852
0856
0857
0900
0929
0931
0932
0940
0943
0946
0956
0958
1000
1003
1004
1006
1007
1010
1011
1032
1034
1036
1038
1039
1042
1046
1047
1050
1051
1052
LIDAR COORDINATES
ON OFF X Y REMARKS
Left Lidar Base
31 47 Launch Site "J" Downey.
1c n M
* II II
* II II
* " "
* " "
* " "
* " "
* " "
* » "
11 " Launch
* 26 34 Long Beach
* " »
* " "
* n n
* H n
* " "
* 29 " Signal Hill
* " "
* « "
* " "
* n n
* » "
* " "
* " "
* " "
* 37 38 Hawaiian Gardens, 605 Fwy. &
Carson.
* " "
* . ii ii
* n n
* " "
* " "
* " «
* M n
* •• »
* " "
* " "
74
-------
Chart 20 (continued). SUMMARY OF OPERATION
MISSION DAY 10/24/73
L.A. BASIN
GRID POSITION
TIME
1114
1117
1119
1123
1125
1128
1129
1132
1207
1210
1211
1214
1216
1220
1222
1226
1232
1233
1234
1255
1257
1300
1305
1308
1310
1312
1315
1317
1318
LIDAR COORDINATES
ON OFF X X REMARKS
* 45 40 Buena Park, Artesia Fwy. & Knott
* " "
* " "
* " "
* , n n
* " "
* " "
* •• "
* 47 44 La Mirada
* " "
* » "
* n n
* n M
* " "
* " "
* " "
* ii ii
* " "
* n n •
* 45 50 East Whittier, Whittier Blvd.
72 & Colima N 8.
* '' "
* n M
* •• ••
if " "
* " "
* . " "
* n n
* ii n
* " "
75
-------
Figure 24.
Mobile Lidar route map
Mission day 10/24/73
76
-------
600
cr>
Figure 25. Mixing layer height along observational route
Mission day 10/24/73
77
-------
MISSION DAY - 10/25/73
Haze and light fog for the morning of the 25th were found
along the coastal areas; however, visibility conditions in-
land toward Burbank and central Los Angeles were 10 miles or
better. Skies were clear, and some haze or obscuration de-
veloped over most of the Los Angeles basin for the remainder
of the day.
Both LAX and El Monte radiosonde records indicated a surface
based inversion with a top above 900 meters (a.g.l.). The
1130 PDT release at LAX showed that surface heating had now
raised the base slightly to 147 meters with a second weaker
base existing near 357 meters.
Lidar returns for the morning all indicated the presence of
haze with scattering and attenuation extending from 183 to
625 meters (a.g.l.). Beginning at the launch site at 0743
PDT, the typical air mass discontinuity was detected just
above the local inversion height, or 350 meters. Time sepa-
ration between radiosonde releases prevented any meaningful
comparison. However, the temperature profile obtained with
the release from the 7th and Alameda launch site, at 0641
PDT, showed the possibility of a second level inversion base
developed at around 300 meters. The existence of this second
inversion base was revealed in the 1130 PDT release from LAX.
Lidar observations from points west and north from the down-
town launch site indicated height variations of the mixing
layer depth. No significant echoes were received from the
vicinity of the lower inversion base at 147 meters.
78
-------
Chart 21. COMPARISON OF LIDAR MIXING LAYER HEIGHT WITH METEOROLOGICAL OBSERVATIONS
RUN 11 10/25/73
TIME
0600
0700
0800
0900
1000
1100
1200
1300
1400
1500
1600
LAUNCH SITE
Jb Jt DPb DPt
Sfc 800 280 310
none none
LAX
-------
Chart 22. SUMMARY OF OPERATION
MISSION DAY 10/25/73
L.A. BASIN
GRID POSITION
TIME
0740
0744
0745
0748
0750
0752
0754
0808
0810
0813
0820
0821
0849
0853
0855
0858
0900
0902
0905
0906
0908
0909
0957
0959
0961
1004
1007
1008
1023
1025
1026
1030
1034
1035
1043
1046
1149
1152
1153
LIDAR COORDINATES
ON OFF X Y REMARKS
24 59 Launch site "A" Downtown L.A.
* n n
* ii n
* » "
* n n
* ii n .
* » »
* " "
* M n
* " ••
* n n
* » "
* 27 50 South Gate
* » "
* •• "
* » "
* n n .
* •• "
* " »
* " "
* " »
* •• »
* 10 59 Santa Monica Fwy. & La Cienega,
North of Culver City.
* " "
* " " .
* . " "
* •• »
* M ii
* 6 61 W. Los Angeles
it . n n
* » »
* n n
* n ii
* n n
* " ••
* " »
* 1.8 65 Hollywood Fwy. & Normandie, L.A.
* " "
* " "
80
-------
Chart 22 (continued). SUMMARY OF OPERATION
MISSION DAY 10/25/73
L.A. BASIN
GRID POSITION
TIME
1158
1201
1202
1206
1210
1214
1216
1217
1243
1246
1247
1250
1253
1254
1314
1318
1321
1404
1407
1408
1411
1415
1417
1419
1421
1423
1424
1425
1426
1630
LIDAR COORDINATES
ON OFF X X REMARKS
* 18 65
* " "
* ,
* n n
* , » »
it ' it ii.
* » "
* II II
* 19 68 Griffith Park
* . n M
* » "
* M ii
* » »
* M II
* 25 70 Eagle Rock, Ventura Fwy. &
Verdugo.
* •• »
* " »
* 32 69 Two miles Southwest of Univer-
sal City.
* n n
* » »
* " "
* n n
* n n • '
* n n
* - " "
* n n
* >• ••
* ' ii n
* " ••
Arrived i> Lidar Base
81
-------
Figure 26. Mobile Lidar route map
Mission day 10/25/73
82
-------
600
500
400
-p
.c
300
200
100
Figure 27. Mixing layer height along observational route
Mission day 10/25/73
83
-------
MISSION DAY - 10/26/73
On the morning of the 26th, ground fog and haze existed until
approximately 0900 PDT. Discontinuities in the Lidar back-
scatter indicated a horizontal layering at approximately 250-
350 meters altitude. Radiosonde data from the early morning
release (0539 PDT) revealed a fairly uniform moisture profile
extending to above 610 meters. In existence at this time was
an elevated inversion with base and top of 318 meters and 787
meters respectively. The backscatter data revealed the haze
extended to just below the inversion base altitude.
The 1130 radiosonde data revealed ground and air temperatures
increased along with an influx of moist air from the coast.
The marine layer was observed to progressively get shallower
during the morning, and was characterized by a lowering of
the inversion base to 257 meters. This was accompanied by a
subsequent lowering of the top to 379 meters. A reduced
temperature gradient was also noted which could account for
the slightly greater altitude dispersion in Lidar backscat-
ter. Backscatter from this altitude fluctuated over a 76
meter range, indicating only minor variability with distance
or time.
After 1330 PDT, when the Lidar van was in North Long Beach,
Lidar signals decreased in both magnitude and position of in-
dicated mixing depth. This change in signal strength may
have been in part due to an increase in observed low level
haze, an additional attenuating mechanism. Nevertheless, a
downward shift was noted for the upper limit of scattering by
any layers present.
84
-------
Chart 23. COMPARISON OF LIDAR MIXING LAYER HEIGHT WITH METEOROLOGICAL OBSERVATIONS
RUN 12 10/26/73
TIME
0600
0700
0800
0900
1000
1100
1200
1300
1400
1500
1600
LAUNCH SITE
Jb Jt DPb DPt
110 370 110 750
LAX
Gff*
*b Xt DPb DPt Vs£
318 787 629 787 2.5
1.0
1.5
2.5
2.5
2.5
257 379 257 379 2.5
3.0
3.0
3.0
EL MONTE
*b *t DPb DPt
278 737 249 347
none 298 329
LIDAR
MLH
250-350
250-300
225-300
200-250
200-300
200-250
200-250
00
01
NOTE I. Inversion base (meters)
o
I. Inversion top (meters)
t
DP^ Lower altitude of gradient change in dewpoint (meters)
DP^ Upper altitude of gradient change in dewpoint (meters)
Vsb Visibility at the surface (miles)
MLH Mixing layer height (meters)
-------
Chart 24. SUMMARY OF OPERATION
MISSION DAY 10/26/73
L.A. BASIN
GRID POSITION
TIME
0730
0850
0902
0905
0906
0909
0913
0917
0927
0935
0936
0944
0950
0952
0957
0959
1000
1026
1034
1039
1040
1045
1108
1115
1116
1119
1120
1124
1125
1126
1130
1131
1133
1134
1135
1222
1226
1227
1231
1232
LIDAR COORDINATES
ON OFF X Y REMARKS
Left Lidar Base
24 59 Launch site "A" Downtown L.A.
£ II II
* " "
* II II
* " "
* " "
* . II II
* " "
* II II
* II II
* " "
* " "
* » »
* " "
* " »
" " Launch _ Lidar left Site
* " "
* » "
* " "
•k " "
* n n
* 11 54 Culver City, La Cienega &
* ii n Slauson.
* " "
* -H ii
* " "
* «• »
* " "
* » »
* . n n
* n ii
* " ••
* «• "
* •• "
* 28 36 Long Beach
* » »
* " »
* n n
* " "
86
-------
Chart 24 (continued). SUMMARY OF OPERATION
MISSION DAY 10/26/73
L.A. BASIN
GRID POSITION
TIME
1304
1311
1312
1316
1320
1321
132.2
1335
1336
1338
1339
1343
1346
1347
1348
1435
1436
1441
1442
1444
1448
1450'
1454
1455
1458
1501
1502
1503
1527
1528
1530
1531
1535
1539
1540
1542
1553
1555
1558
1560
1845
LIDAR COORDINATES
ON OFF X X REMARKS
* 28 39 North Long Beach, Atlantic &
South.
1c " "
* H II
*.'"".
JU II II.
* " "
* » "
* 29 40 N. Long Beach
* " "
* » »
* " "
* " "
n n n
* » "
* » "
* 46 51 E. Whittier
* n n
* n n
* » »
* " "
* '' "
* " "
* » "
* n n
^ n n
* " "
* n n
* " "
* 49 46 La Habra, Imperial & Beach Blvd
*' " "
* ' " "
* " "
* » "
* " "
* " "
* " "
* " "
* " "
* " "
* " . "
Arrived @ Lidar Base.
87
-------
Figure 28.
Mobile Lidar route map
Mission day 10/26/73
88
-------
600
Figure 29. Mixing layer height along observational route
Mission day 10/26/73
89
-------
MISSION DAY - 10/27/73
The meteorological conditions for the 27th and during the
next three days, were typical for those encountered during a
foehn flow or Southern California Santa Ana. Early morning
temperatures were in the middle 50's throughout the basin but
climbed quickly to the 90's just a short distance inland from
the coast. Humidity values also decreased markedly before
midday reaching 13% even in Long Beach. Radiosonde data from
0548 PDT indicated the presence of a ground-based or near-
surface inversion base with top of around 467 meters (a.g.l.),
A strong humidity gradient was present just above the surface
with exceptionally dry air noted above 104 meters. This
level of dry air remained practically unchanged throughout
the day. The late morning temperature profile showed a re-
versal of the temperature structure to near neutral condition,
Lidar returns for the entire day revealed a characteristic
signature typical for an atmosphere having a low optical ex-
tinction. All returns prior to 12 noon indicated the pres-
ence of a low level (60 meters) inversion. The magnitude of
the gradient indicated by this trapping increased through the
morning reaching a maximum between 1030 and 1100 PDT. This
condition was manifested in the Lidar raw data traces by
backscatter intensity fluctuations increasing from 20 to 40%
within the inversion altitude. Also apparent from the raw
data signals was the existence of elevated scattering layers
at approximately 549 and 850 meters (a.g.l.). These signals
were transitory in nature, lasting only minutes each time,
and were indicative of aerosols trapped within the boundary
flows of upper level winds. The maximum mixing depth in the
plot for the 27th was also indicative of the upper level
reached by convected aerosols, and may not represent a true
thermal boundary. The lower scattering levels (less than 76
meters) represent the actual inversion interface.
Other features of the Lidar data show only minor altitude
differences of the scatter levels with distance, indicating a
fairly uniform spatial flow or subsidence within the L.A.
basin.
90
-------
Chart 25. COMPARISON OF LIDAR MIXING LAYER HEIGHT WITH METEOROLOGICAL OBSERVATIONS
RUN 13 10/27/73
TIME
0600
0700
0800
0900
1000
1100
1200
1300
1400
1500
1600
LAUNCH SITE
V Jt DPb DPt
Sfc 570 Sfc 90
LAX
Gff*
zb Jt DPb Dpt vfb
Sfc 467 Sfc 104 4.0
4.0
4.0
8.0
14.0
14.0
none Sfc 113 6.0
8.0
8.0
20.0
EL MONTE
Jb Xt DPb °Pt
Equipment Failure
.
LIDAR
MLH
475-750
475-650
700-850
500-650
500-600
NOTE
t
DP
Vsb
MLH
Inversion base (meters)
Inversion top (meters)
Lower altitude of gradient change in dewpoint (meters)
Upper altitude of gradient change in dewpoint (meters)
Visibility at the surface (miles)
Mixing layer height (meters)
-------
Chart 26. SUMMARY OF OPERATION
MISSION DAY 10/27/73
L.A. BASIN
GRID POSITION
TIME
0700
0758
0801
0804
0813
0824
0826
0828
0830
0836
0838
0843
0846
0847
0852
0854
0855
0856
0857
0858
0859
0900
0928
0930
0931
0932
0933
0934
0938
0939
0941
0943
0944
0946
0947
0948
1029
1033
1034
1035
LIDAR COORDINATES
.ON OFF X Y • REMARKS
Left Lidar Base
24 59 Launch site "A" Downtown L.A.
* n n
* " "
* n n
* » »
* " "
* " "
* " "
* » "
* n n
* " "
1c " "
ic " "
* n n
* n n
* n n
* " "
* « "
* n n
* " "
1e " "
" " Launch
* 15 57 Los Angeles
* " "
* " •'
* " "
* M n
* " "
1e " "
* .11 n
* " "
* » "
* " "
* n n
* " "
* » "
* 32 50 Downey, Long Beach Fwy. &
Firestone.
* » »
* " "
* n n
92
-------
Chart 26 (continued). SUMMARY OF OPERATION
MISSION DAY 10/27/73
L.A. BASIN
GRID POSITION
TIME
1037
1038
1040
1041
1044
1046
1048
1049
1050
1052
1145
1147
1149
1216
1220
1225
1228
1229
1232
1234
1236
1237
1345
LIDAR COORDINATES
ON OFF X X REMARKS
* 32 50
^ II 11
* " "
* " "
* " "
* n n
* " "
* " "
* » "
* " "
* 32 39 Lakewood
* " ii .
* M n
* 27 30 Long Beach Harbor
* " •'
* n n
* " »
* » ••
* " "
* " "
* " "
* " "
Arrived f> Lidar Base.
93
-------
Figure 30. Mobile Lidar route map
Mission day 10/27/73
94
-------
Figure 31. Mixing layer height along observational route
Mission day 10/27/73
95
-------
MISSION DAY - 10/29/73
The conditions supporting a foehn flow were not as prevalent
as for the 27th; however, the presence of low humidity values
throughout the entire basin was indicative of the presence of
dry air. The 0530 PST radiosonde profile for LAX and El
Monte indicated a surface inversion with tops around 600 me-
ters (a.g.l.) near the coast and mountains. The presence of
very dry air near 90 meters (a.g.l.) at LAX indicated a
strong gradient condition separating the boundary of the ma-
rine layer.
The temperature profile from the 1130 PST LAX radiosonde
showed existence of an elevated inversion beginning at ap-
proximately 348 meters (a.g.l.) with near neutral conditions
existing below that point.
Very detailed structures shown in the Lidar signatures were
received for this day, indicative of particulate or air mass
turbulence to heights of 732 meters (a.g.l.). The early
morning (0740 PST) data indicated the presence of a possible
thermal inversion near 82 meters (a.g.l.). This layer, or
interface, remained at approximately the same altitude until
the conclusion of the Lidar operation at 1318 PST. The upper
boundary of high scattering changed from the 823 meters
(a.g.l.) at 0742 PST to 500 meters (a.g.l.) at 1318 PST.
Since near neutral lapse conditions prevailed over most of
the day, mechanical turbulence may be responsible for the in-
sertion of particulates at the upper boundary. This bound-
ary was also marked by a weak temperature inversion which
existed between 348 meters and 625 meters in the L.A. basin.
Fluctuations in the height of this upper boundary were ob-
served in the Lidar data. However, it was difficult to find
reasons for this behavior through comparisons with either
time or distance traveled.
96
-------
Chart 27. COMPARISON" OF LIDAR MIXING LAYER HEIGHT WITH METEOROLOGICAL OBSERVATIONS
RUN 14 10/29/73
TIME
0600
0700
0800
0900
1000
1100
1200
1300
1400
1500
1600
LAUNCH SITE
Jb Jt DPb DPt
Sfc 780 Sfc 170
LAX
Cff,
Jb Jt DPb DPt v5
Sfc 168 Sfc 83 20
20
12
6
6
8
348 629 Sfc 98 8
8
8
10
EL MONTE
Tb Jt DPb DPt
Sfc 518 Sfc 30
none none
LIDAR
MLH
700-900
700-900
500-650
550-700
500-650
500-650
500-650
vo
NOTE
t
DP
Vsb
MLH
Inversion base (meters)
Inversion top (meters)
Lower altitude of gradient change in dewpoint (meters)
Upper altitude of gradient change in dewpoint (meters)
Visibility at the surface (miles)
Mixing layer height (meters)
-------
Chart 28. SUMMARY OF OPERATION
MISSION DAY 10/29/73
L.A. BASIN
GRID POSITION
TIME
0630
0725
0743
0745
0747
0750
0751
0754
0756
0801
0805
0806
0810
0811
0815
0816
0819
0825
0826
0827
0828
0830
0848
0851
0852
0854
0855
0901
0903
0904
0905
0930
0931
0932
0937
0938
0941
0944
0945
0949
0954
0955
LIDAR COORDINATES
ON OFF X Y REMARKS
Left Lidar Base
31 47 Launch Site "J" Downey
* n n
* " "
* n n
•jf ii II .
* n n
* » "
* » "
* n n
* " "
* " "
* » ••
* " "
* " "
* " "
* n n
* n n
* n ii
* " "
* » ••
11 " Launch
* 20 47 Los Angeles
* » "
^ n n
^ n n
* " "
* » "
* n M
* n n
* n n
* 22 59 Los Angeles
* " »
* '• »
* •• "
* » »
* n ii
* . " "
* •• ••
* » "
* " "
* » "
98
-------
Chart 28 (continued). SUMMARY OF OPERATION
MISSION DAY 10/29/73
L.A. BASIN
GRID POSITION
TIME
0958
1000
1001
1037
1041
1043
1044
1045
1046
1052
1055
1056
1104
1107
1108
1113
1115
1116
1135
1137
1139
1144
1147
1148
1155
1200
1205
1210
1213
1214
1236
1243
1244
1247
1248
1251
1254
1256
1302
1304
1306
LIDAR COORDINATES
ON OFF X X REMARKS
* 22 59
* " "
* " "
* 25 66 North of Elysian Park on San
Fernando Drive.
* " "
* " "
* ii ii
* " "
* " "
* n M
JL II If
* " "
* " "
* " "
* ii n
* • n n
* n ii
* » "
* " "
* " "
* " n
* ." "
* " "
* " "
* it n
* .11 M .
1f II II .
* II II
* II II
* " "
* 39 63 Rosemead; San Bernardino Fwy.
* " " & Rosemead Blvd.
* n n
* " "
* " "
* . •• »
* " "
* « "
* " "
* n n
* n n
99
-------
Chart 28 (continued). SUMMARY OF OPERATION
MISSION DAY 10/29/73
L.A. BASIN
GRID POSITION
TIME
1308
1311
1313
1315
1317
1318
1319
1545
LIDAR
ON OFF
*
*
*
*
*
*
*
COORDINATES
X X REMARKS
39 63
n n
n n
M n
n n
n n .
n n
Arrived d> Lidar Base
100
-------
._..M<8"E MONROVIA . : 0BRADBURY
*"'*'t^=?^r'°_l! QUART
Figure 32.
Mobile Lidar route map
Mission day 10/29/73
101
-------
800
STA ON
! II
Figure 33. Mixing layer height along observational route
Mission day 10/29/73
102
-------
MISSION DAY - 10/30/73
Ground level meteorological conditions for the 30th were sim-
ilar to the previous two days except that stronger low level
winds from the southeast were present. A surface inversion
was reported at 0550 PST with tops at 287 meters (a.g.l.) ex-
tending to 347 meters (a.g.l.) in the eastern section of the
Los Angeles basin. Daytime temperatures increased on the
ground, changing the stable conditions to superadiabatic
around noon. Again, a significant gradient in moisture con-
centration at less than 30 meters (a.g.l.) was indicated in
all radiosonde releases for the day, with extreme dryness
aloft.
The conditions indicating turbulent mixing aloft were mani-
fested in the Lidar returns by the random scattering occur-
ring at extremely high altitudes (732-1200 meters). Detec-
tion of the lower thermal inversion was again evident in the
early morning returns. Some degree of layer breakup was
noted here before noon. The conditions of stronger ground
level winds together with vertical convection could probably
destroy any structure features. Numerous random echoes from
transient layers were also noted existing in the raw Lidar
data. Although an upper level was detected, this mixing
layer was more indicative of the buildup of turbulent layer.
The unique characteristic of the Lidar signature signifying
this was evident in the extinction or slope of the return
versus range.
103
-------
Chart 29.
COMPARISON OF LIDAR MIXING LAYER HEIGHT WITH METEOROLOGICAL OBSERVATIONS
RUN 15 10/30/73
TIME
0600
0700
0300
0900
1000
1100
1200
1300
1400
1500
1600
LAUNCH SITE
Jb Zt DPb DPt
j
Sfc 80 Sfc 80
LAX
*b *t DPb DPt vfb
Sfc 287 none 10
6
6
8
6
5
none none 7
12
14
20
EL MONTE
Jb *t DPb DPt
Sfc 347 Sfc 30
-
LIDAR
MLH
1000-1100
1100-1200
700-875
500-700
600-900
t
DP
NOTE I, Inversion base {meters)
Inversion top (meters)
-Lower altitude of gradient change in dewpoint (meters)
DPt Upper altitude of gradient change in dewpoint (meters)
Vsb Visibility at the surface (miles)
MLH Mixing layer height (meters)
-------
Chart 30. SUMMARY OF OPERATION
MISSION DAY 10/30/73
L.A. BASIN
GRID POSITION
TIME
0630
0731
0733
0735
0738
0741
0742
0748
0750
0751
0754
0755
0758
0800
0813
0814
0818
0819
0820
0822
0823
0826
0827
0828
0829
0830
0933
0937
0938
0940
0946
0947
0949
0951
0952
1025
1026
1028
1030
1033
1034
LIDAR COORDINATES
ON OFF X Y REMARKS
Left Lidar Base
* 31 47 Launch Site "J" Downey
* n n
* n it
* n n •
* " "
* " "
* " "
* " "
* » »
* n u
* n M
* " "
* II II
* II II
* II II
* II H
* II II
* " "
* II II
* " "
* » »
1e " "
* " "
* " "
" " Launch
* 45 44 La Mirada, Rosecrans & La Mirad;
* " "
* n M
* n n
* " "
it n n
1e " "
* » "
* it n
* 26 38 North Long Beach, Long Beach
Fwy. & Del Amo.
* " "
* " "
* " »
* » ii n
* " "
105
-------
Chart 30 (continued). SUMMARY OF OPERATION
TIME
LIDAR
ON OFF
L.A. BASIN
GRID POSITION
COORDINATES
X X
MISSION DAY 10/30/73
REMARKS
1035
1036
1038
1042
1044
1045
1047
1049
1052
1053
1054
1056
1058
1100
1102
1103
1105
1655
*
*
*
*
26
38
n
n.
Arrived d> Lidar Base
106
-------
Figure 34.
Mobile Lidar route map
Mission day 10/30/73
107
-------
1100
: looo
tn
Figure 35. Mixing layer height along observational route
Mission day 10/30/73
108
-------
MISSION DAY - 10/31/73
The effects of the previous three days of Santa Ana conditions
may have contributed to the good visibility and low haze re-
ported on the morning of the 31st. Wind components above 305
meters, however, indicated convergence of air from the north
and northwest directions as detected by the 1130 PST radio-
sonde from LAX. This represents a reversal from the previous
day's soundings.
A ground-based inversion existed during the morning hours but
moved upward to 77 meters along the coastal regions before
noon. Higher surface temperatures inland may have contributed
to the high inversion base altitude of 628 meters over El
Monte at 1335 PST. Surface winds over most of the Los Angeles
basin returned to a typical sea breeze condition after 12
noon.
Lidar returns from the 7th and Alameda location, indicated
the presence of layered aerosol structure at approximately
the height of the reported inversion base. Records later that
morning, from observation points due west, showed a gradual
disappearance of echoes from this altitude. Considerable lay-
ering was evident throughout the region from 200 through 450
meters. Many of the signal echoes were transitory in nature.
The slope of the inversion base, lying between LAX and El
Monte, could well have occurred within the altitude region
being detected by the Lidar. Some indications from wind data
as well revealed wind shears within the region between 305
and 457 meters (a.g.l.). A likely mechanism could be that
the residual pollution was trapped by wind shears.
109
-------
Chart 31. COMPARISON OF LIDAR MIXING LAYER HEIGHT WITH METEOROLOGICAL OBSERVATIONS
RUN 16 10/31/73
TIME
0600
0700
0800
0900
1000
1100
1200
1300
1400
1500
1600
LAUNCH SITE
Jb V Dpb Dpt
none
-
LAX
C-P/I
Jb Jt DPb DPt Vsb
Sfc 397 none 15
14
12
12
10
10
77 357/568 98 150 10
10
10
10
EL MONTE
Jb v Dpb Dpt
Sfc 384 Sfc 42
628 _ 829 none
LIDAR
MLH
350-475
350-475
300-450
400-500
t
DP
NOTE I, Inversion base (meters)
b
Inversion top (meters)
, Lower altitude of gradient change in dewpoint (meters)
Upper altitude of gradient change in dewpoint (meters)
Vsb Visibility at the surface (miles)
MLH Mixing layer height (meters)
-------
Chart 32. SUMMARY OF OPERATION
MISSION DAY 10/31/73
L.A. BASIN
GRID POSITION
TIME
0630
0745
0800
0802
0804
0807
0808
0811
0814
0815
0817
0819
0820
0821
0823
0825
0827
0830
0831
0835
0854
0856
0858
0901
0902
0904
0906
0908
0912
0917
0918
0940
0942
0944
0948
0952
0956
0959
1001
1004
1005
LIDAR COORDINATES
ON OFF X Y REMARKS
Left Lidar Base
24 59 Arrived (§> Launch site "A"
Downtown L.A.
* " "
* n n
* ii n
* H n
* " "
* " "
* " "
* " "
* n n
* " "
* " "
* ii n
* " "
* M n
* " "
* " " Launch
* " "
Leave site "A"
* 14 60 Los Angeles
* •• "
* n n
* " "
* " "
* " "
* " "
* " "
* " "
* " "
* " "
* 5 56 Mar Vista, Venice Blvd. &
Centinela.
* » »
* -I n
* n n
* . " "
* " "
* ii n
* n n .
* ii n
* n M
111
-------
Chart 32 (continued). SUMMARY OF OPERATION
L.A. BASIN
GRID POSITION
MISSION DAY 10/31/73
TIME
1008
1010
1012
1015
1016
1044
1045
1047
1049
1053
1055
1056
1315
LIDAR
ON OFF
*
*
*
*
*
*
*
*
*
*
*
*
COORDINATES
X Y REMARKS
5 56
n ii
n • M
ii n
n n
,, 53
n ii
n n
ii ii
n n
n n
n n
Arrived d> Lidar Base
112
-------
Figure 36.
Mobile Lidar route map
Mission day 10/31/73
113
-------
600
Figure 37. Mixing layer height along observational route
Mission day 10/31/73
114
-------
MISSION DAY - 11/1/73
Weather conditions were fairly uniform throughout most of the
Los Angeles basin for the entire day. The restrictions in
visibility due to haze, and some early morning fog, did not
clear in late afternoon. Partly cloudy skies kept ground
temperatures in the mid 50's during the day.
The inversion base which existed at 0540 PST was well above
the surface (446 meters) over LAX, but was reported on the
surface near El Monte. The 1220 PST sounding at LAX showed
the base had risen to 668 meters (a.g.l.), at which point the
temperature increased 4°C over the next 774 meters.
Similar conditions prevailed over the central region near
El Monte. The 1330 PST radiosonde record showed the inver-
sion base at 740 meters (a.g.l.) with nearly isothermal con-
ditions (i 1°C) up to an altitude of 1377 meters (a.g.l.).
A similar lapse rate was measured at the 7th and Alameda
launch site at 0530 PST. The weak temperature gradient con-
ditions over both locations would offer only minimal trapping
effects to surface generated effluents.
A predominant characteristic of the Lidar backscatter for
that day was the minimum signal attenuation throughout the
altitude range of 762 meters. No thermally created layering
was at all detectable beneath 365 meters from 0730 until 1200
PST. Following that time, a recurring echo from about 46
meters (a.g.l.) signifies the existence of a thermal struc-
ture not indicated from radiosonde profiles.
Within the region from 640 to 732 meters (a.g.l.), light
turbidity was found to occur on an intermittent basis. The
temporal and spatial randomness of backscatter within this
region is evident from the accompanying chart.
115
-------
Chart 33.
COMPARISON OF LIDAR MIXING LAYER HEIGHT WITH METEOROLOGICAL OBSERVATIONS
RUN 17 11/1/73
TIME
0600
0700
0800
0900
1000
1100
1200
1300
1400
1500
1600
LAUNCH SITE
Jb Jt DPb DPt
510 610 510 610
LAX
Gf'r>
*b Jt DPb °Pt Vsb
446 668 357 446 3
3
2
2
3
4
668 1442 668 818 5
7
8
8
EL MONTE
Jb Jt DPb DPt
Sfc 448 158 448
740 920 408 740
LIDAR
MLH
600-850
600-750
550-800
650-750
NOTE
t
DP
Vsb
MLH
Inversion base (meters)
Inversion top (meters)
Lower altitude of gradient change in dewpoint (meters)
Upper altitude of gradient change in dewpoint (meters)
Visibility at the surface (miles)
Mixing layer height (meters)
-------
Chart 34. SUMMARY OF OPERATION
MISSION DAY 11/1/73
L.A. BASIN
GRID POSITION
TIME
0530
0625
0635
0639
0649
0700
0702
0707
0708
0711
0715
0723
0725
0727
0729
0731
0735
0736
0742
0759
0801
0803
0806
0809
0812
0815
0817
0820
0821
0824
0826
0828
0829
0830
0900
0903
0910
0914
0918
0919
0921
LIDAR COORDINATES
ON OFF X Y REMARKS
Left Lidar Base
24 59 Arrived d> Launch site "A"
Downtown L.A.
* " . "
* n n
* ." "
* " "
* " "
* " ••
* " "
* " "
* " "
* n n
* " "
* n n
* n n
* n ii
* " "
* n ii
Launch
* 16 60 Los Angeles
* " "
* n n
* " "
^ it ii
* n n
* " »
* n ii
* " "
* " "
* " "
* " "
* " "
* » »
* " •>
* 956 Culver City
* H II
* ."."•'
* " "
* M II
* II II
* II II
117
-------
Chart 34 (continued). SUMMARY OF OPERATION
MISSION DAY 11/1/73
L.A. BASIN
GRID POSITION
TIME
0925
0930
0934
0937
0943
0944
1013
1018
1022
1145
1406
LIDAR
ON OFF
*
*
*
*
*
*
*
*
*
COORDINATES
X X
9
"
n
n
"
"
3
"
"
24
56
"
n
"
"
11
60
"
11
59
REMARKS
West Los Angeles
Second Launch
Boresighting arid alignment
1645
checked out
Arrived @ Lidar Base
118
-------
Figure 38. Mobile Lidar route map
Mission day 11/1/73
119
-------
800
tn
Figure 39. Mixing layer height along observational route
Mission day 11/1/73
120
-------
MISSION DAY - 11/2/73
Cloudy conditions prevailed over most of the Southern Cali-
fornia regions for the entire day. The ground level temper-
ature did not vary by more than 8 degrees over the 24 hours,
generally staying below 67 degrees. Radiosonde releases at
LAX and El Monte showed no traces of a temperature inversion,
however a minor one was reported at 1550 meters in the 0825
Downey launch data. The existence of cloudy conditions was
revealed by the moisture level increases above 300 meters.
An electronic failure in the recording system prevented the
recovery of a significant portion of Lidar data for 2 Novem-
ber. The mixing level heights were taken from the Polaroid
prints of the unprocessed signal returns used as a backup for
the day's operation.
Indicated in each Lidar return from that day was the predom-
inately high scattering intensity from a stratus deck at
about 700-800 meters. The layer was at times as much as 400
meters thick but contained numerous breaks. The upper level
stratus top was placed at above 1300 meters with some degree
of uncertainty here due to the significant beam attenuation
encountered, and height variations of the lower boundary.
121
-------
Chart 35. COMPARISON OF LIDAR MIXING LAYER HEIGHT WITH METEOROLOGICAL OBSERVATIONS
RUN 18 11/2/73
TIME
0600
0700
0800
0900
1000
1100
1200
1300
1400
1500
1600
LAUNCH SITE
I, I. DP, DP.
b t b t
1400 1550 1400 1550
LAX
I. I. DP. DP. f/5
D t O t \/SD
none 373 500 10
12
12
12
12
12
none 616 1000 12
12
15
15
EL MONTE
Xb Jt DPb DPt
none none
none none
LIDAR
MLH
700-1300
875-1400
960-1100
1075-1290
NOTE
t
DP
Vsb
MLH
Inversion base (meters)
Inversion top (meters)
Lower altitude of gradient change in dewpoint (meters)
Upper altitude of gradient change in dewpoint (meters)
Visibility at the surface (miles)
Mixing layer height (meters)
-------
Chart 36. SUMMARY OF OPERATION-
MISSION DAY 11/2/73
L.A. BASIN
GRID POSITION
TIME
0830
0925
1015
1020
1027
1036
1151
1236
1240
1245
1340
1351
1408
1412
1745
LIDAR
ON OFF
*
*
*
*
*
*
*
*
*
*
*
COORDINATES
X Y REMARKS
Left Lidar Base
31 47 Arrived @> Launch site "J" Downey
" "
n n
n n
n n
" " Launch
24 61 Los Angeles
ii n
II M
30 73 Pasadena
n n
II M '
II II
Arrived i> Lidar Base
Due to electronic malfunction, the digitized data was lost.
Polaroid photos were taken at time and position indicated above,
123
-------
; \j&
......--•T'NSfl
Figure 40. Mobile Lidar route map
Mission day 11/2/73
124
-------
Figure 41.
Mixing layer height along observational route
Mission day 11/2/73
125
-------
MISSION DAY - 11/5/73
An early morning light haze near the coast was the only vis-
ibility limiting feature for the day, with visibilities of
near 10 miles inland. Warmer conditions inland, in the low
70's, along with a ground-based inversion produced a partial
trapping condition for that morning. The radiosonde profile
for the 0525 PST Downey site and the 0530 PST LAX site both
indicated the surface inversion and a second temperature in-
version gradient of 0.5°C at approximately 778 meters. By
early afternoon, surface heating had substantially removed
all traces of the earlier inversion.
Lidar returns for most of the morning indicated the exis-
tence of a low level (60-80 meter) layer, possibly due to the
reported inversion. Numerous layers and scattering irregu-
larity also existed. A transition from the turbid region in-
to a cleaner air was manifested by the usual scatter inten-
sity drop-off at just above 450-465 meters. A check of the
radiosonde humidity profiles for that morning showed only a
slight decrease in moisture content beginning at 400 ireters.
The heights of measured signal returns appeared rather uni-
form considering the large spatial separation or distance
traveled by the Lidar van for that day.
Temperature profiles obtained by helicopter all terminated
at too low an elevation, about 300 meters, to be useful to
the analysis on that day which had the top of the aerosol
layer predominantly above 400 meters and much of the time a
great deal higher. The only exception was the special ver-
tical pattern flown by the helicopter at.1340 PST. This re-
vealed a weak inversion layer between 375 and 450 meters at
the same time that the Lidar reported tops of the aerosol
layer ranging between 360 and 400 meters.
126
-------
Chart 37. COMPARISON OF LIDAR MIXING LAYER HEIGHT WITH METEOROLOGICAL OBSERVATIONS
RUN 19 11/5/73
TIME
0600
0700
0800
0900
1000
1100
1200
1300
1400
1500
1600
LAUNCH SITE
Zb Jt DPb DPt
Sfc 400 80 400
LAX
Jb xt Dpb Dpt vfb
Sfc 266 none 10
10
10
5
5
10
none none 8
8
14
20
EL MONTE
Jb Xt DPb DPt
Sfc 628 207 300
i
none none
LIDAR
MLH
700-900
600-800
490-740
400-600
350-550
250-500
350-450
NOTE I, Inversion base (meters)
b
Inversion top (meters)
Lower altitude of gradient change in dewpoint (meters)
. Upper altitude of gradient change in dewpoint (meters)
Vsb Visibility at the surface (miles)
MLH Mixing layer height (meters)
t
DP
DP
-------
Chart 38. SUMMARY OF OPERATION
MISSION DAY 11/5/73
L.A. BASIN
GRID POSITION
TIME
0515
0659
0715
0806
0808
0809
0822
0832
0835
0837
0840
0843
0845
0848
0850
0851
0933
0937
0941
0942
0944
0946
0948
0950
0952
0955
0956
1006
1008
1010
1011
1014
1016
1018
1020
1022
1024
1025
1047
1050
1053
1054
LIDAR COORDINATES
ON OFF X Y REMARKS
Left Lidar Base
31 47 Arrived @ Launch site "J"
Downey
Launch
* 27 40 Nor.th Long Beach
* n n
* " "
* 21 46 Compton
* " "
* n n
* n n .
* " "
* " "
* n ii
* " "
* n n
* " "
* 31 42 Paramount
* n n
* n n
* " "
* ii n
* MM
* II II
* " II
* » " "
* II II
* II . II
* II II
* II II
* II II
* " "
* II II
* MM
1C II II
* " "
* " "
* " "
A " "
* 39 41 Artesia
* " "
* " "
* " »
128
-------
Chart 38 (continued). SUMMARY OP OPERATION
MISSION DAY 11/5/73
L.A. BASIN
GRID POSITION
TIME
1057
1100
1103
1105
1106
1108
1110
1111
1128
1131
1134
1135
1137
1140
1142
1143
1145
1148
1150
1152
1154
1155
1210
1214
1218
1222
1226
1234
1237
1240
1241
1254
1258
1305
1307
1310
1311
1313
1315
1317
1350
LIDAR COORDINATES
ON OFF - X X REMARKS
* 39 41
* " "
* " "
* n n
& n . n
* H n.
* " "
* " "
* 42 44 Norwalk
^f n n t
* " »
* « "
* " "
* " "
* n n
* n n
* n ii
* " "
* " "
* n n
* n n
* " »
* 44 45 La Mirada
* " "
* n n
* " »
it . " "
* " "
* •• "
* n n
* n n
* 46 49 E. Whittier
* " "
* " ••
* " "
* " "
* " "
* " »
* " "
* « »
* 50 56 Hacienda Heights
129
-------
Chart 38 (continued). SUMMARY OF OPERATION
MISSION DAY 11/5/73
L.A. BASIN
GRID POSITION
TIME
1352
1355
1356
1358
1359
1400
1401
1404
1405
1406
1429
1430
1433
1436
1437
1439
1440
1715
LIDAR COORDINATES
ON OFF X X REMARKS
* 50 56
* " "
* " «
* " •>
* , " "
* n n
* " "
* " "
* " "
* " "
* 58 58 Walnut
* " "
* " "
* " «
•^ n n
* " " -
* M i,
Arrived d> Lidar Base
130
-------
\V--i
MANHATTAN BEACHV& -
HERUOSA BEACH
REDONDO BEACH
Figure 42. Mobile Lidar route map
Mission day 11/5/73
131
-------
800
Figure 43. Mixing layer height along observational route
Mission day 11/5/73
132
-------
MISSION DAY - 11/6/73
The meteorological conditions for the 6th were similar to
those of the previous day. A similar but perhaps stronger
inversion existed near ground level with a top of around
1068 meters at LAX during the morning. A complex multiple
temperature gradient was revealed in the LAX and El Monte
radiosonde profiles. Using the 1130 PST radiosonde obser-
vation from LAX as reference, the secondary temperature
base was located between 366 meters and 537 meters with a
top of about 796 meters. Later profiles showed the surface
based inversion had disappeared, but some trapping still
existed because the unique temperature structure persisted
above 300 meters.
Lidar returns for the period between 0640 and 0800 PST re-
vealed the presence of a significant layer at 240 meters
(a.g.l.). Although an inversion gradient of 2.0°C was in-
dicated on the 0628 PST LAX profile, an increase in dewpoint
temperature also appeared at this corresponding altitude.
The lower level appeared to shift downward with time in
the Lidar photos, and disappeared at around 1000 PST. Beam
penetration into the cleaner air was again manifested by
the signal falloff above 650 meters (a.g.l.). The region
between 650 and 800 meters represents several temperature
gradients of about 1.3°C, as reported on the 1130 radiosonde,
133
-------
Chart 39.
COMPARISON OF LIDAR MIXING LAYER HEIGHT WITH METEOROLOGICAL OBSERVATIONS
RUN 20 11/6/73
TIME
0600
0700
0800
0900
1000
1100
1200
1300
1400
1500
1600
LAUNCH SITE
*b Jt DPb DPt
Sfc 740 none
-
LAX
Jb Jt DPb Dpt vS
Sfc 141/1068 141 266 14
10
8
8
6
6
366 537/796 257 366 6
10
10
14
EL MONTE
Jb Jt DPb DPt
Sfc 929 none
707 1152 none
LIDAR
MLH
700-900
400-475
375-650
375-575
250-750
600-750
600-700
525-650
OJ
t
DP
NOTE I, Inversion base (meters)
b
Inversion top (meters)
, Lower altitude of gradient change in dewpoint (meters)
Upper altitude of gradient change in dewpoint (meters)
v-
Vsb Visibility at the surface (miles)
MLH Mixing layer height (meters)
-------
Chart 40. SUMMARY OF OPERATION
MISSION DAY 11/6/73
L.A. BASIN
GRID POSITION
TIME
0530
0630
0632
0637
0640
0641
0642
0644
0645
0646
0648
0656
0704
0705
0706
0710
0721
0723
0724
0729
0733
0740
0741
0742
0806
0808
0812
0814
0819
0821
0822
0824
0827
0829
0831
0833
0834
0836
0837
LIDAR COORDINATES
ON OFF X Y REMARKS
Left Lidar Base
24 60 Arrived @ Launch site "A"
Downtown L.A.
* " "
* M M •
* M n
* " "
* " "
* " . "
* •• "
* » "
* " "
* n "
* » "
* n n
* " •<
* » "
* " "
* II M
* " "
* » "
* " "
* " "
* II II
* II II
* 19 53 Los Angeles
* n M
* n n
* n n
* n n
* .n n
* » "
* » "
* » "
* " "
* " »
* " ••
* " "
* " "
* " "
135
-------
Chart 40 (continued). SUMMARY OF OPERATION
MISSION DAY 11/6/73
L.A. BASIN
GRID POSITION
TIME
0858
0900
0905
0907
0909
0914
0915
0917
0920
0922
0923
0950
0958
1001
1003
1007
1011
1012
1016
1017
1018
1023
1026
1030
1031
1037
1041
1045
1049
1050
1051
1105
1115
1144
1154
1157
1200
1202
1203
1206
LIDAR COORDINATES
ON OFF X X REMARKS
* 11 51 Inglewood
* MM
* " "
* " "
* . " "
* " "
* II M
* " "
* " "
* " "
* " "
24 60 Return to Launch site "A" for
new launch.
* n n
* . " "
* n ii
* " "
* » «
* n ii
* n n
* n M
* •' »
* " "
* » "
* » "
* " "
* " "
* " "
* » "
* " n
* n M
* " M
" " Launch
Left Launch site
* 18 65 Hollywood
* " »
* ii n
* n n
* n n
* » »
* n . n
136
-------
Chart 40 (continued). SUMMARY OF OPERATION
MISSION DAY 11/6/73
L.A. BASIN
GRID POSITION
TIME
1208
1210
1211
1250
1252
1255
1257
1300
1304
1305
1307
1310
1312
1313
1314
1318
1320
1322
1323
1530
LIDAR
ON OFF
*
*
*
*
*
*
*
. *
*
*
*
*
*
. *
*
*
*
*
*
COORDINATES
X X REMARKS
18 65
n n
n n
22 74 Glendale
II II
n ii
n ii
n n
n n
n n
MM
It It
II II
II II
II II
II II
M II
II II
" " Mission completed
Arrived @ Lidar Base
137
-------
.......•-•7S$C
1st launch - 0744 - 0853
2nd launch - 1115 - 1250
Figure 44. Mobile Lidar route map
Mission day 11/6/73
138
-------
1st launch - 0744 - 0853
2nd launch - 1115 - 1250
Figure 45.
Mixing layer height along observational route
Mission day 11/6/73
139
-------
MISSION DAY - 11/7/73
Conditions were again very uniform over most of Southern Cali-
fornia, with only light to moderate early morning haze and
fog reported along the coast. A ground-based temperature in-
version existed during early morning with a top of around 586
meters. The top effectively moved up to 1067 meters during
the day. By noon, surface heating had removed the lower in-
versipn but a secondary inversion with a temperature gradient
of 1.6°C still existed between 616 and 1067 meters (a.g.l.).
The early morning Lidar returns revealed boundary layer pene-
tration between 400 and 600 meters where the only significant
feature seemed to be the upper level temperature inversion
top near 680 meters. The region between 400 and 600 meters
exhibited less attenuation per unit path length as compared
to the atmosphere below 400 meters. The lower level inver-
sion base, or remnants thereof, continued to be detected for
most of the day. However, what appeared to be a low level
inversion indication, may have been the result of multiple
vertically stacked layers, each having a successively lower
attenuation coefficient than the one below. At the uppermost
level, 640 meters, no corresponding gradient in temperature
or humidity could be found that would correlate or explain
the Lidar signatures.
140
-------
Chart 41.
COMPARISON OF LIDAR MIXING LAYER HEIGHT WITH METEOROLOGICAL OBSERVATIONS
RUN 21 11/7/73
TIME
0600
0700
0800
0900
1000
1100
1200
1300
1400
1500
1600
LAUNCH SITE
Zb Zt DPb DPt
Sfc 400 none
-
LAX
Jb *t DPb Dpt vfb
Sfc 586 348 586 N.A.
135 1067 none
EL MONTE
Jb Jt DPb DPt
Sfc 999 429 667
524 890 524 890
LIDAR
MLH
400-585
400-550
560
350-450
475-575
450-600
375-500
NOTE
t
DPb
DPt
Vsb
Inversion base (meters)
Inversion top (meters)
Lower altitude of gradient change in dewpoint (meters)
Upper altitude of gradient change in dewpoint (meters)
Visibility at the surface (miles)
MLH Mixing layer height (meters)
-------
Chart 42. SUMMARY OF OPERATION
MISSION DAY 11/7/73
L.A. BASIN
GRID POSITION
TIME
0630
0749
0805
0807
0808
0813
0820
0821
0827
0833
0834
0836
0903
0905
0910
0925
0931
0937
0940
0944
0948
0950
0951
0954
0956
0957
0958
1004
1006
1007
1024
1025
1027
1028
1031
1033
1034
1040
1042
1043
LIDAR COORDINATES
ON OFF X Y REMARKS
Left Lidar Base
Arrived @> launch site "A"
Downtown L.A.
* 24 59
* n ••
* H H ,
* " "
* » "
* " "
* n n
* " "
* n n
* n n
* 18 63 Los Angeles
* " "
* ii n
* n M
* n ii
* 15 63 Los Angeles
* n n
* •• ••
ir " "
* ii n
* " »
* " "
* n n
* " "
* " "
* » "
* " "
it .n n
* 14 65 Hollywood
* " "
it " "
* " "
* " "
* n n
* " "
* n n
* ii n
* n n
142
-------
Chart 42 (continued). SUMMARY OF OPERATION
MISSION DAY 11/7/73
L.A. BASIN
GRID POSITION
TIME
1130
1135
1135
1139
1147
1150
1151
1203
1204
1206
1315
1318
1323
1328
1333
1335
1339
1341
1345
1347
1348
1351
1352
1356
1358
1400
1403
1404
1406
1410
1412
1413
1415
1417
1530
LIDAR
ON OFF
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
COORDINATES
X X REMARKS
12 72 Universal City
n n
n n
n n
M n
II M •
II II
II II
II II
II II
33 63 Observations taken along San
" " Bernardino Fwy. near Garvey -
" " East to Covina and return.
M n
n n
ii ii
n n
n M
e>
II II
II II •
II II
II II
II II
II II
II II
II II
II II
II II
II II
II II
II II
II II
II II
II II
Arrived ® Lidar Base
143
-------
Figure 46.
Mobile Lidar route map
Mission day 11/7/73
144
-------
A MRK
Figure 47.
Mixing layer height along observational route
Mission day 11/7/73
145
-------
W Weather
H
H Haze
K Smoke
F Fog
GF Ground Fog
R Rain
D Dust
BD Blowing Dust
L Drizzle
+ Stronger
Weaker
Very Weak
BN Blowing Sand
SECTION VIII
GLOSSARY
Sky
cy Cloudy
CLR Clear
Wd
W
s
DD
ff
Wind Direction
Wind Speed
Pts.
Miles Ter Hour
DlR.
\RROW
DEG.
PTS.
N
1
360
16
WE
IX
23
1
NE
/
45
2
ENE
-^
68
3
E
•-•—
SO
4
ESE
^:
113
5
SE
^
135
6
SSE
fx
158
7
S
1
180
8
SSW
A
203
9
SW
/
225
10
WSW
^
248
11
W
—
?70
12
WNW
"^•K.
293
13
NW
^
315
14
N^w
N
338
15
146
-------
SECTION IX
APPENDIXES
Page
A. Topography Map of Los Angeles Basin 148
B. Daily Weather Data at LAX, Burbank and
Long Beach 151
C. LARPP Program Launch Site Data 172
D. Radiosonde Data Summary
Los Angeles International Airport Station 181
E. Radiosonde Data Summary
El Monte Station 192
F. Daily Summary of Weather Data 199
147
-------
APPENDIX A.
TOPOGRAPHY MAP OF LOS ANGELES BASIN
148
-------
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149
-------
APPENDIX B
DAILY WEATHER DATA AT LAX, BURBANK AND LONG BEACH
151
-------
DAILY WEATHER DATA
Year 1973
Month
Oct. Day 05
cn
L
00
01
02
03
oh
o?
06
07
08
09
10
11
12
' 13
Hi
1$
16
17
18
19
20
21
22
23
A.
V
CO
305
305
310
310
310
318
320
325
025
330
340
340
940
350
V60
International Airport Burbank Long Beach
V/x
GFfi
FK
FK
FK
HK
HK
HK
HK
HK
HK
HK
HK
HK
HK
T
VJ/
,_99 JJ87J008
RH
76
97
97
97
93
81
70
66
68
68
73
81
84
84
84
i<£ 9
020
T
74
59
59
59
61
64
68
70
69
69
67
64
62
62
62
MIN
66
D?
75
58
58
58
59
58
58
58
58
58
58
58
57
57
57
T
SD
C6
4
4
4
4
3
7
4
9
4
5
7
4
11
11
11
11
11
11
11
12
7
4
7
5
DD
6-5
75^52
ff
C4
5
5
5
6
2
5
6
6
5
3
3
3
6
12
10
10
9
9
7
5
3
6
5
6
rj. \2
V
GO
040
025
002
)08
015
)15
)15
)15
)J5
)20
)20
)25
)25
)25
~1k:o
V.x
H
HK
F
E
FH
FH
FH
FH
FH
HK
HK
HK
HK
HK
T
043| ||)15|l38
r;M
76
77
80
LOO
90
75
68
64
58
58
60
68
75
76
89
T
74
54
56
56
60
651
69
72
74
74
73
69
65
62
61
D?
75
47
50
56
57
57
58
59
58
58
58
58
57
55
57
1 RH T
DD
06
8
15
15
15
14
14
15
4
8
6
6
7
6
8
8
8
8
8
8
7
6
6
6
8
e-9
01$ 58| 74J824
F.'
04
3
5
3
5
3
5
2
6
9
8
8
9
6
9
12
13
14
12
9
7
7
7
7
5
FF
5.12
II v
eo
010
010
012
012
015
020
320
1020
|D25
S030
|330
JP30
[
II
_
IU
07(|) &87
V.'x
pro
HK
HK
HK
HK
HK
HK
LHK
HK
HK!
HK
HK
T
VM
008
RH
76
81
81
81
75
70
70
eq
70
65
70
75
75
T
74
61
61
61
63
65
65
66
65
66
64
62
61
vesp,,
020( 65
c;>
75
55
55
55
55
55
55
55
55
54
54
54
53
T
MAX.
67
DD
ea
10
8
4
1
8
5
4
4
8
7
8
8
8
8
8
8
7
7
6
6
7
4
4
ff
34
1
1
1
1
3
3
3
6
1
3
9
9
8
13
9
9
12
8
7
7
9
5
6
7
DO FF
6-5 e- 12
3221052
V
CO
\Vx
ran
76
T
74
1
D?
75
DD
86
ff
84
-------
DAILY WEATHER DATA
Year 1973
Month Oct.
Day 10
L.A. International Airport
Burbank
Long Beach
00
01
02
03
Ok
0?
06
07
08
09
10
11
12
13
Ut
15
16
17
18
19
20
21
22
23
99
V
£0
040
040
060
100
120
200
250
250
250
300
300
300
300
250
veo
V.'x
HK
HK
HK
T
VM
lOOjogQ
RH
76
86
83
81
56
51
49
47
57
42
39
41
49
48
48
ves
.00
T
74
55
57
61
67
70
71
71
70
71
72
71
69
66
66
Rrt
UIN
39
DP
75
51
52
55
51
51
51
50
54
47
46
46
49
46
46
T
»A r
73
CD
£6
4
4
3
2
7
4
3
3
7
12
6
12
11
12
12
11
11
11
12
12
11
11
10
4
DC.
S-S
224
f(
84
5
5
6
6
3
5
6
6
2
6
5
9
12
13
14
13
17
18
12
9
6
5
3
3
FF
6-12
ns7
V
80
>00
JOO
500
500
500
iOO
>00
500
500
500
>00
500
500
.55
vso
ISS
V\x
T
L90
RH
76
80
66
49
36
35
42
34
37
50
28
31
31
37
32
T
74
52
53
61
66
69
71
74
75
74
74
7?,
71
67
65
I RH
'I'.'s KIN'
ISS
28
C?
75
46
42
42
38
40
47
44
47
54
39
40
39
40
34
T
MAX
75
DD
86
5
3
11
16
1
3
4
3
13
6
7
8
6
8
8
7
7
6
8
12
15
12
15
5
DD
6.9
22
f?
34
3
6
5
3
6
6
6
5
3
7
9
7
12
7
18
17
1 5
12
7
5
6
8
5
5
FF
6.12
V
80
)80
)40
)40
140
)50
LOO
L40
.40
.40
too
tso
150
150
305
ii
0621
V50
h40
Vftc
HK
HK
HK
HK
T
VW
090
RH
76
80
83
75
56
42
47
37
24
23
36
?S
31
34
52
'.":•!
(40
T
74
53
55
61
67
70
73
74
76
76
75
74
71
68
65
RH
'/ ! N
23
C?
75
47
50
53
51
46
52
46
37
36
46
^fi
39
38
47
T
M&y
DD
C6
8
2
3
3-°
10
15
12
15
16
13
16
9
8
10
9
12
14
12
12
11
11
2
12
2
I DD
6-5
78 |67£
ff
84
1
1
1
1
1
1
3
5
6
3
6
12
LO
L2
15
L6
1 7
L3
7
8
8
7
1-
1
FF
6-12
osp
V
CO
V/x
RH
76
T
74
D?
75
DD
36
ff
B4
•
700
- 0\
cn
OJ
-------
DAILY WEATHER DATA .
Year. 1973
AAonth Oct.
Pay 11
L.A. International Airport
Burbank
Long Beach
00
01
02
03
Ok
o?
06
07
08
09
10
11
3,2
13
u,
15
16
17
18
! 19
20
21
22
23
99
V
CO
120
100
050
osq
050
040
05C
060
060
120
14P
140
140
140
•"=o
V/K
HK
HK
HK
HK
HK
HK
HK
SM
76
61
57
43
36
31
34
41
47
51
59
63
73
81
81
Tvi/
040h.io
-TO
J40
r
74
55
57
63
68
72
73
72
70
71
69
68
66
63
63
Ml ',
31
^
D?
75
42
42
40
40
40
43
47
49
52
54
55
57
57
57
i't-r
73
D3
&6
4
4
4
4
3
2
4
2
4
16
11
11
11
11
11
11
12
11
12
11
11
11
7
4
Dj
6.5
if
C4
5
5
5
3
5
2
5
7
6
3
3
12
12
13
13
14
14
12
10
7
6
3
3
3
FF
e.i2
i
212lo60l
V
to
400
400
250
250
200
200
V=v
200J
200|
200
200
200
300
400
L55
V60
ss
T -
VW
r.H
/6
58
50
43
33
29
28
23
22
19
24
27
38
44
48
T
74 .
49
51
58
66
70
73
76
78
80
78
75
70
68
66
KH
'•'I'- •'.! N
190ll55
19
D?
75
35
34
36
36
37
38
36
36
34
39
39
43
45
45
T
MAX
80
DO
06
5
15
15
1
15
15
15
6
10
12
6
8
7
8
8
8
7
6
9
15
14
14
12
1
DO
6.9
iJb
f.<
34
5
3
5
3
6
5
6
5
3
3
6
6
6
9
9
12
12
9
7
6
8
7
5
5
FF
6.12
14fl
i
V
80
120
120
070
060
060
050
380
L40
L40
140
250
250
[305
[305
j|
V60
lose
V.x
HK
HK
HK
•ju
110
:>H
76
61
57
48
43
35
41
46
39
28
40
43
51
65
70
v- -
ISO
T
74
53
55
60
65
71
73
74
75
79
75
72
69
65
63
Fiji .
28
n?
75
40
40
40
42
42
48
52
48
43
49
48
50
53
53
T
MAX
8U
no
C6
6
4
1
12
1
15
16
16
1
4
6
8
9
8
12
13
13
13
13
13
15
5
7
2
DD
6-5
481
if
C4
1
1
1
1
3
3
1
3
2
2
3
9
10
14
9
15
10
13
9
7
3
3
3
3
FF
6- 12
)33
i y
1
CO
i[
V/x
RH
76
,
T
74
1
i
C?
75
DD
C6
ff
G4
1
— •••••-- — —-•.- _ 7 OD :
Ol
0x3
-------
DAILY WEATHER DATA
Year 1973
Month Oct.
Day 12
L.A. International Airport
Burbaok
Ul
tn
Long Beach
00
01
02
03
Oil
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
99
V
«J
04C
040
030
030
030
040
050
120
120
120
140
140
140
140
JJU
\-',,
HK
HK
HK
HK
HK
HK
HK
T
)80
an
76
90
80
67
51
44
49
55
57
59
59
63
76
84
87
)30
T
7'\
56
57
61
68
71
72
72:
72
71
71
70
67
64
63
™
44
D?
75
53
51
50
49
48
52
55
56
56
56
57
59
59
59
T
73
CO
C5
4
4
4
4
4
4
4
4
5
4
5
11
12
12
11
11
11
12
12
12
10
10
9
4
6-1
22.'
ffj
e4
3
5
5
5
3
3
6
5
7
3
3
9
10
10
12
12
10
10
7
9
5
2
5
5
FF
e. 12
nss
V
CO
150
150
L50
L50
L50
LOO
)70
)70
)50
)50
LOO
LOO
.00
.00
1
v,o
hsn
V.x
H
H
T
| :•;
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76
58
56
39
41
32
28
26
24
28
26
28
37
42
44
ISO
T
/4
50
52
62
66
72
77
79
80
82
81
80
75
70
70
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24
C?
75
36
37
37
42
41
42
41
40
46
43
44
47
46
47
T
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02
DD
es
6
1
16
16
14
11
16
12
6
6
8
8
8
7
8
8
8
11
16
13
15
14
1 7
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68<
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84
5
3
7
6
3
9
5
3
8
7
7
8
9
7
12
10
10
6
7
6
8
3
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6- 12
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050
350
)60
)60
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HK
HK
HK
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VM
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76
77
69
60
56
46
48
45
40
36
38
38
44
51
63
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T
74
51
56
61
66
72
74
77
77
79
79
76
72
67
65
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75
44
46
47
50
50
53
54
51
50
51
48
49
48
52
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WAX
81
DD
26
2
4
3
11
15
16
9
9
5
2
9
9
9
8
8
13
12
13
13
L4
L4
2
4
8
D3
6-9
i>b3
ff
24
6
3
1
1
1
1
1
1
1
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5
5
9
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L2
L6
7
9
6
5
3
3
1
FF
e- 12
123
V
SO
1
1
Wx
RH
76
T
74
D?
75
DD
26
ff
C4
700
-------
DAILY WEATHER DATA
Year 1973
Month Oct.
Day 15
L.A. International Airport
Burbank
in
Long Beach
00
01
02
03
oh
o?
06
07
08
09
10
11
12
13
lit
15
16
17
V
£3
002
305
005
008
020
030
030
030
080
080
080
080
18 |080
19 K>70
20
21
22
23
.
V/s
F
F
F
F
HK
HK
HK
HK
P.M
76
97
97
100
93
81
T
74
57
57
56
58
62
81 1 62
81
73
68
73
78
84
89
89
.'CO Tv«|vC9
99 P87|005P80
62
65
67
66
64
62
61
61
D?
75
56
56
56
56
56
56
56
56
56
57
57
57
57
57
DD
£6
12
11
12
10
3
1
10
13
12
11
11
11
11
12
12
11
12
12
11
11
11
7
7
7
Rh j T j OS
wit, {<»•>. \ 6-S
68
68 B76
ft
84
5
3
3
3
2
2
6
3
5
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7
9
10
12
13
14
9
12
10
7
6
2
3
2
FF
e- 12
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V
GO
00
50
LOO
LOO
LOO
LOO
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V:x
HK
HK
T
vw
oso;120
P.H
76
57
51
44
66
32
26
30
29
27
27
30
41
48
57
T
74
55
58
67
70
75
82
85
87
87
87
84
79
75
71
D?
75
40
40
44
58
43
43
50
51
49
49
49
53
54
55
1 ftrl T
oso
^b
til
DD
S3
16
15
11
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11
15
7
6
7
7
7
8
7
8
8
7
7
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14
16
8
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3
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5-9
B4J
f.
04
3
5
5
5
5
7
3
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6
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7
9
8
9
12
12
8
3
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6
6
3
3
FF
6-12
IRS
llv
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)00
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J
V/x
F
F
F
F
HK
HK
HK
HK
HK
HK
RH
76
86
86
87
78
63
57
48
52
48
52
57
|56
1 T
'.'60 L vw
b2or16
64
78
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315
T
74
56
56
57
60
67
71
76
74
75
73
70
68
64
61
WIN
43
C?
75
52
52
53
53
54
55
55
55
54
54
54
52
52
54
T
MAX
77
DD
C6
13
12
14
15
14
16
13
\L2
13
14
14
8
11
13
12
14
15
13
L3
L4
L6
1
7
L3
ff
G4
7
5
5
6
3
5
6
6
6
3
6
9
9
LO
LO
L2
L3
9
8
6
3
3
1
3
DD | FF
6.SJ6.I2
767)060
V
GO
V/x
r,n
76
T
74
D?
75
DD
36
ff
C4
-------
in
-o
DAILY WEATHER DATA
Year 1973
Month Oct.
Day 16
L
00
01
02
03
Oh
o?
06
07
08
09
10
n
12
13
u»
15
16
17
18
! 19
20
21
22
! 23
.A.
V
CO
000
002
008
010
010
012
015
025
030
030
008
002
004
004
International Airport Burbank Long Beach
!."«
F
F
GF
GF
HK
HK
HK
HK
HK
HK
F
F
VF
VF
yg Q w
99 987bo8
RH
76
100
^.00
100
87
84
78
75
73
76
75
87
90
93
93
'C9
*a y
T
74
58
58
58
63
63
65
65
65
62
63
60
59
58
58
Fin
1 3
DP
75
58
58
58
59
58
58
57
56
55
b5
56
56
56
56
It-r
D3
C5
11
9
12
11
13
14
3
10
10
11
12
11
11
11
12
11
12
12
11
12
12
12
12
u^
6-6
66 255
ff
24
3
3
3
2
2
3
2
2
2
6
7
8
10
9
10
9
12
9
7
6
7.
5
5
5
FF
C. 12
r)4S
V
CO
250
100
>50
>00
L50
L50
L50
.00
LOO
.00
.00
.00
.50
.00
itpr
Vf^
KM
76
57
53
44
34
29
23
19
22
20
20
16
26
22
40
T
74
55
58
64
73
79
82
88
90
90
90
88
85
78
76
C?
75
40
41
42
43
44
41
41
46
43
43
37
46
37
50
7 i ! fcH i T
vv 1 /€S Mir; UAr
[^P°Too
16 90
DD
C6
15
14
14
13
13
15
15
12
1
6
6
6
7
8
8
7
5
6
5
14
1
13
11
115
DD
f . o
a'bi
f
34
5
3
3
3
3
3
5
3
3
6
6
7
12
12
9
12
8
9
9
6
5
5
3
5
ff
5. 12
i
V
CO
)01
)01
)01
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)30
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125
|>25
i
050|
V.'x
F
F
F
GF
HK
HK
HK
HK
HK
HK
HK
HK
HK
HK
»foi Ju
n.;i
76
93
93
90
87
76
64
64
58
60
46
47
61
78
81
•": =
bofJH!oi
T
>'4
5.6
56
57
60
67
72
72
75
74
81
77
68
61
60
RH
M. I »,-
4£
C?
73
54
54
54
56
59
59
59
59
59
58
55
54
54
54
T
81
DD
S6
13
15
15
14
14
14
7
8
7
12
8
9
8
8
7
13
13
L3
L3
L3
L3
L3
L2
L4
DD
6-5
ff
G4
1
1
1
5
5
1
1
3
1
3
3
5
8
8
7
5
7
8
9
6
7
7
7
7
FF
e- 12
444^'
V
SO
V.'x
RH
76
T
74
C?
75
DD
C6
ff
£4
i
7 0 C
-------
DAILY WEATHER DATA
Year 1973
Month Oct.
Day 17
L.A. International Airport
Burbank
CD
Long Beach
00
01 J
02
03
Oh
o?
06
07
08
09
10
11
12
ll»
15
16
17
18
' 19
20
21
22
23
99
V ]v/x
CO
001
020
030
030
050
050
060
080
080
080
080
200
140
140
•/eo
%L
HK
HK
HK
HK
HK
VK
060lL22
RH
76
LOO
1OO
84
34
70
61
59
57
53
59
65
70
75
78
V€9
)bU
T
7}
54
53
60
60
65
69
70
71
72
70
68
66
64
63
VtN
b3
DP
75
54
53
55
55
55
55
55
55
54
55
56
56
56
56
DD
£6
12
14
11
11
11
13
14
3
11
12
12
11
11
11
12
11
11
12
11
12
11
9
4
7
T DC,
'"•' 6-5
73
12k
If
£4
3
2
2
5
6
6
3
2
6
9
8
9
10
12
12
10
12
9
6
5
3
3
3
2
FF
E-12
0621
V
CO
L50
200
200
200
400
400
400
400
400
400
400
L55
L55
v.v.
veo
RH
7-i
53
53
41
41
17
15
14
15
17
16
17
22
24
T
7-1
57
59
69
70
90
93
94
94
93
91
88
82
80
DP
75
40
42
44
45
40
38
38
39
42
39
38
40
40
DD
C3
15
15
15
15
15
15
14
14
12
3
8
10
4
7
8
8
13
14
11
16
14
14
115
" ! kH i 7
L50^°UiL50| 14
94
DD
6-9
7/6
f.'
04
5
5
5
5
5
5
5
3
3
6
6
5
6
9
12
9
12
9
3
3
12
9
12
FF
6.12
'1 v
SO
JJ002
IJ005
||015
bis
jbis
;P30
340
340
350
LOO
L40
200
200
3.40
II
V.'x
F
GF
HK
HK
HK
HK
HK
HK
HK
1 j T
P15JL05
RH
76
93
93
84
65
45
38
32
35
41
33
39
46
51
53
•JC ^
Ub
T
74
54
S4
59
67
77
82
87
86
82
83
77
73
69
68
Rrt
1?
C?
75
52
52
54
55
54
54
53
55
56
51
50
51
50
50
T
MA*
89
DD
S6
13
14
16
12
13
14
15
13
13
11
14
12
13
13
12
13
13
13
14
14
14
1
7
8
30
a /7
ff
84
6
6
1
5
6
7
6
3
3
5
7
5
6
8
14
13
13
12
7
6
7
5
1
1
FF
6-12
148
V
SO
V/x
RH
76
T
74
D?
75
DD
C-6
ff
84
i
7 0 C 3
-------
tn
\o
D
L
00
01
02
03
oU
o$
06
07
08
09
10
11
12
13
Ut
15
16
17
18
19
20
21
22
23
AILY WEATHER DATA Year 1973
Month
Oct.
Day 18
.A. International Airport Burhank Long Beach
V
C3
040
040
100
080
080
080
070
100
100
200
200
200
2od
150
v%*
V ) ?.
HK
HK
/eo I vv
99 |070|i20
RH
76
84
84
62
53
38
T
74
62
63
72
73
81
41] 79
42
45
53
46
55
44
53
53
VC5
370
78
76
73
73
71
71
68
68
VIS
J8
DP
75
57
58
58
55
53
53
53
53
55
51
54
48
50
50
T
84
DD
Ca
4
4
4
12
14
11
12
12
12
12
16
11
11
11
11
11
11
11
11
11
14
11
5
9
DL
6-5
ff
C4
3
3
2
5
5
3
2
3
3
5
3
9
10
9
12
15
9
8
7
8
5
2
5
3
FF
f.. 12
666042l
V
CO
100
>00
500
>00
>00
iOO
500
500
500
500
500
500
250
L55
'.'60
JIS5
\Vx
Tvw
RH
76
44
45
37
32
26
23
18
20
16
17
16
15
17
20
T
74
64
66
73
78
85
89
93
94
94
95
91
87
83
80
1 RH
'•-.'3 Mir;
L9UHs
C?
75
42
44
45
46
47
46
43
47
42
43
38
34
34
36
T
MAX
15 95
DD
C6
15
16
7
1
8
6
13
16
7
8
8
7
a
8
8
11
12
13
14
14
_
13
14
16
DO
6-9
784
f.'
34
9
5
5
6
6
6
5
5
5
5
6
6
V
8
14
9
17
14
9
9
_
9
7
9
FF
6-12
JbJ
V
CO
)60
)60
)50
>30
)25
125
>2b
)70
LOO
>00
200
^00
iOO
.40
1!
V/x
HK
HK
HK
HK
HK
HK
HK
I 7
^'50 vv
0-a!h
-------
DAILY WEATHER DATA
Year 1973
Month Oct.
Day 24
L.A. International Airport
Durbank
Long Beach
1
00
01
02
03
oU
05
06
07
08
09
10
n
12
13
Ut
15
16
17
18
19
20
21
22
23
99
V
CO
150
12C
120
12C
12C
08C
IOC
12C
12C
30C
30C
300
15C
150
vco
080
V/x
T
no
RH
76
36
83
75
63
53
46
51
47
51
53
54
60
64
68
VC9
)80
T
74
54
55
59
65
68
72
71
71
70
69
68
66
64
64
RH
WIN
46
DP
75
50
50
51
52
50
50
52
50
51
51
51
52
52
53
T
73
D3
CS
4
4
5
4
5
6
5
3
4
1
9
11
12
12
11
11
11
11
10
7
3
5
4
4
D:,
5-9
322
if
£4
3
3
3
5
2
2
3
3
6
3
5
9
10
12
13
13
13
9
5
3
5
5
7
8
FF
e. 12
14ft
V
SO
200
poo
500
500
250
250
250
250
500
500
500
500
250
L55
veo
SS
\"x
T
vw
L90
?M
76
83
83
72
63
54
49
41
46
29
36
38
46
49
56
TO
ISS
T
74
50
51
58
64
68
71
75
80
82
79
78
73
70
67
RH
M 1 N
29
D?
75
45
46
49
51
51
51
50
57
47
50
50
51
50
51
MAX
82
DD
C6
15
9
15
15
IS
14
12
4
8
15
5
8
6
8
4
6
6
5
6
16
15
4
4
4
DO
6.9
624
f.'
34
5
28
5
5
S
5
5
3
. 3
3
6
6
6
6
3
13
12
16
9
6
6
3
6
6
FF
6.12
14"
V
SO
100
100
070
070
070
070
)70
380
370
370
LOO
350
305
p05
V60
h?o
Wx
VM
LOO
r.H
76
83
77
69
64
53
44
40
50
47
48
43
51
53
56
V6S
)70
T
74
53
55
60
64
69
73
77
77
77
75
73
69
67
65
RH
43
C-?
75
48
48
50
52
51
50
51
57
55
54
49
50
49
49
T
MAX
80
DD
86
3
7
8
16
1 S
0.5
15
16
4
1
16
13
12
9
13
12
13
13
15
5
6
6
4
3
DD
6-S
88:
H
S4
1
1
1
1
1
3
1
1
5
1
3
. 5
3
9
1
13
12
LO
9
5
5
6
5
5
FF
5- 12
0?7
V
GO
V/x
RH
76
T
74
D?
75
DD
86
ff
24
700
-------
DAILY WEATHER DATA
Year 1973
Month Oct.
Day 25
L
00
01
02
03
oh
o?
06
07
08
09
10
11
12
13
H»
15
16
17
18
19
L 20
21
22
23
99
.A.
V
£0
050
040
040
040
050
060
070
070
070
070
002
002
010
030
'-'60
International Airport Burbank Long Beach
V/'x
HK
HK
HK
HK
HK
HK
FK
FK
FK
GFK
T
VW
Ob°&m
RH
76
90
87
75
68
55
51
55
61
65
68
87
90
93
97
ves>
)40
T
74
56
57
62
66
70
71
71
70
69
68
62
60
58
57
RH
51
DP
75
53
53
54
55
53
52
54
56
57
57
58
57
56
56
ukr
74
DD
C6
3
4
3
3
2
5
2
3
5
6
4
11
11
11
12
11
12
12
9
14
7
5
3
4
CO
6-S
123
f?
e4
7
5
5
5
5
5
5
5
6
6
5
10
10
12
10
9
8
7
3
2
3
3
2
6
6^2
f)6?
V
CO
400
400
400
250
250
200
L50
)50
)50
)60
)70
L50
.50
.00
V60
)50
V.'x
H
H
HK
T
.30
RH
76
61
66
56
48
41
37
31
35
42
44
41
49
49
61
T
74
50
52
59
65
70
75
79
80
79
77
76
71
70
67
1 ftri
••".•-. 1 vr'.-
nso
C?
75
37
41
43
45
45
47
46
50
54
53
51
51
50
53
MAX
31 80
DD
C6
4
4
1
1
15
16
15
14
7
6
6
6
6
6
7
7
7
7
6
16
6
5
4
4
OD
6-S
87-i
ff
34
6
6
6
6
5
5
6
5
3
8
8
6
12
12
12
9
8
9
8
8
8
3
9
5
FF
6-12
!!v
oed
80
040
)25
)20
)20
)30
)50
)60
)70
)70
)70
)70
)50
)40
)40
\'fx
HK
FHK
HK
HK
HK
HK
HK
HK
HK
HK
;ec w
RH
76
80
80
75
63
55
59
55
50
53
57
63
70
78
81
'•' 6 &
b3d1UJ020
T
74
55
56
60
66
70
72
73
74
73
72
70
67
63
61
RH
vlti
SO
D?
75
49
50
52
53
53
57
56
54
55
56
57
57
56
55
T
MAT
7b
DD
£6
4
3
7
16
10
13
7
16
2
1
6
8
9
10
9
8
8
13
14
15
5
4
5
4
DD
E-&
48J
ff
34
6
1
1
3
1
1
1
3
3
3
5
12
10
9
10
9
8
9
9
3
3
6
7
1
FF
5-12
04'
V
SO
Y/x
RH
76
T
74
j
D?
75
DD
06
((
24
. . » 7 OD :
-------
DAILY WEATHER DATA
Year 1973
Month Oct.
Day 2 6
L.A. International Airport
Burbank
N)
Long Beach
00
01
02
03
Oh
o?
06
07
08
09
10
n
12
13
U|
15
16
17
18
19
20
21
i 22
1 ^
99
V
to
025
01 C
015
025(
023
02£
02!
03C
03C
00£
03C
06C
06C
06C
987
V/x
HK
G1K
Gbc
HK
HK
HK
HK
HK
HK
FK
HK
HKj
HK;
HK
T
007
KM
76
93
97
87
75
61
61
64
66
70
81
81
73
78
84
025
T
74
58
58
61
65
70
71
71
70
69
64
64
64
62
62
RH -
61
DP
75
56
57
57
57
56
57
58
58
59
58
58
55
55
57
T
72
DD
£6
4
4
4
4
3
2
3
4
4
4
11
12
12
11
11
12
12
12
11
10
4
6
2
4
DD
6-S
Tl
ff
84
3
3
7
R
5
7
6
6
5
5
5
8
9
9
12
10
12
13
7
5
5
3
5
3
FF
e-i2
OSF
V
£0
050
070
070
070
IOC
IOC
10C|
150}
osq
040
100
250
150
150
veo
\mn
V.*
HK
HK
HKj
7
090
PvH
76
80
66
62
58
41
39
26
22
35
33
28
24
31
27
v«
D70
T
74
51
52
57
63
70
75
80
84
82
83
83
81
76
71
RH
WIN
22
DP
75
45
41
44
48
47
48
42
41
52
51
47
41
43
35
T
MAX
84
DD
G6
4
2
15
15
15
15
15
8
12
13
6
7
7
8
7
8
8
8
14
15
4
4
4
7
DD
6-9
S4(
f?
04
5
5
6
5
5
5
5
3
3
3
6
9
9
6
12
12
8
5
5
6
6
5
5
3
FF
6-12
04f
V
80
020
010
010
015
025
040
040
050
050
060
025
)25
)30
)30
V60
740
V.V.
Sfe
^
JK
HK
HK
HK
HK
HK
HK
HK
HK
HK
HK
HK
7
VM
ri?
RH
76
90
90
87
78
65
59
54
68
62
58
68
73
70
73
ve =
0?e
T
74
58
58
60
63
69
72
76
71
73
76
69
66
65
63
RH
WIN
5^
C?
75
55
55
56
56
57
57
58
60
59
60
58
57
55
54
i
MAX
77
DD
86
2
3
3
1
4
4
4
5
2
2
14
13
10
9
8
13
13
13
13
15
5
7
1
16
DJ
6-9
??1
ff
04
3
1
5
3
1
6
5
1
3
5
6
5
8
13
10
9
9
8
6
5
3
3
5
1
FF
6-12
)42
V
CO
Wx
RH
76
T
74
D?
75
DD
G6
ff
34 i
7 0 D
-------
DAILY WEATHER DATA
Year 1973
Month Oct.
Day 2 7
OJ
L
00
01
02
03
01*
05
06
07
08
09
10
11
12
13
lit
15
16
17
18
' 19
20
21
22
2?
.A.
V
£D
040
040
040
080
140
140
060
080
080
200
200
300
140
140
/60
International Airport Durbank Long Deach
"!x
HK
HK
HK
HK
VM
99 "4%80
RH
76
86
77
60
30
21
17
24
26
26
22
33
46
56
59
•.'«
J4u
T
74
55
58
65
77
84
88
.80
84
82
82
76
71
67
68
WIN
17
D?
75
51
51
51
43
40
38
40
45
44
40
45
49
51
53
T
91
DD
CS
4
4
16
4
5
3
4
4
2
4
1
11
12
11
11
11
12
11
3
5
3
16
DD
6-9
???
ff
£4
6
6
3
5
1
2
5
5
3
6
6
5
9
8
9
9
9
8
5
1
3
2
6
2
e!?2
050
V
CO
L50
>00
>00
500
>00
iOO
iOO
500
>00
iOO
iOO
iOO
55
55
II V60
dbO
V.*
Tvv
nfin
RH
76
48
45
37
36
20
13
12
10
10
10
10
9
15
23
T
74
55
55
67
72
80
85
90
94
95
95
93
88
81
76
1 RH
.'•:•; (KIN-
130 9
D?
75
36
34
40
43
35
29
31
29
29
29
28
24
29
36
T
MfX
95
DD
C6
16
16
13
16
16
16
16
6
13
7
7
7
7
11
12
12
15
13
6
14
12
10
LO
12
DO
6-9
FH7
f.1
34
5
5
3
6
6
3
7
3
5
6
6
7
9
12
9
12
14
6
6
5
S
5
5
5
F F
5-12
057
i
!
I
|
V
CO
)10
)10
)15
)25
)40
)60
!50
!50
>50
L50
>50
?50
[50
1.50
.60
1)25
Wx
GF
GF
GF
GF
HK
HK
7
vw
194
RH
76
100
97
84
55
31
22
15
13
04
20
20
26
39
49
v«s
525
T
74
54
55
61
71
82
82
93
94
95
91
86
8O
71
68
RH
MIN
04
C?
75
54
54
56
54
48
40
39
36
12
45
40
42
45
48
T
MAX
96
DD
C6
4
4
8
14
12
13
13
14
12
15
fL5
fts
tl4
b.5
13
12
12
12
14
1
2
LI
L5
L3
DD
6-6
776
vf
04
1
1
1
5
1
5
5
6
6
8
7
LO
L2
9
8
L4
L2
L3
8
5
3
3
5
6
ff
6- 12
070
V
CO
Wx
P.H
76
T
74
' ' '— '
D?
75
"•^ ' "
DO
86
•'- • —
ff
C4 :
I
!
-• =
1 1 K , . . , . ^ 7 0 D 3
-------
DAILY WEATHER DATA
Year 1973
Month Oct.
Day 29
L.A. International Airport
Burbank
Long Beach
00
01
02
03
Olt
05
06
07
08
09
10
11
12
13
Hi
15
16
17
18
19
20
21
i 22
23
99
V
CO
200
200
120
060
060
080
080
080
080
100
100
100
100
100
veo
060
V/x
HK
HK
VM
l^O
RH
76
59
59
40
28
28
27
29
22
48
47
53
70
73
68
-'<,
360
T
74
55
56
65
70
74
78
80
83
77
77
73
67
65
65
MI Ft
22
DP
75
41
42
40
36
39
41
45
40
56
55
55
57
56
54
i'ty
34
DD
C6
5
6
16
1
4
4
7
8
7
4
4
7
5
8
11
11
11
11
9
9
4
16
4
13
DO
6-5
444
ff
S4
3
2
3
2
3
5
5
5
2
5
6
7
7
6
8
9
9
8
3
5
6
5
2
5
FF
6.12
050
V
80
250
400
250
L50
L50
L50
L50
LOO
)70
)80
LOO
too
!00
.55
.••60
370
V.'x
T
• vv
140
RH
76
31
25
19
15
20
15
14
14
16
20
21
18
24
22
'-.' f C.
)70
T
74
53
59
68
75
78
80
83
84
85
85
83
81
77
75
RH
WIN
14
D?
75
24
24
25
25
34
28
30
30
33
40
39
34
37
33
7
85
DD
C6
15
16
8
14
16
16
11
8
8
7
6
6
8
6
8
8
7
16
16
9
16
16
2
DD
6-9
Q6<
f.!
34
5
3
5
3
3
8
6
9
9
7
.8
7
6
12
9
9
6
7
8
6
6
12
3
FF
e- 12
078
1
'
[ 1
V
80
400
L50
)50
)50
)70
)70
)80
)90
)90
)90
.40
L40
)70
)70
!
i
V60
|05(
V.'x
K.
K
VM
'OBO
riH
76
53
52
.41
41
40
44
41
34
35
31
34
50
53
56
V-c.
050
T
74
55
54
63
71
75
75
77
81
80
82
80
75
70
68
RH
MltJ
31
C?
75
38
37
39
46
49
52
52
50
50
48
49
55
52
52
T
84
DD
86
16
12
7
4
11
1
6
5
2
7
8
8
7
8
8
8
6
8
L4
L2
13
L5
L3
L4
DD
6-9
331
ff
84
6
1
3
5
1
3
3
3
6
6
10
12
5
7
7 .
6
5
5
8
5
3
5
5
7
FF
6-12
Jb/
V
SO
V/x
RH
76
T
74
D?
75
DD
86
ff
84
7 0 D
-------
DAILY WEATHER DATA
Year 1973
Month Oct.
Day 30
tn
L
00
01
02
03
oh
05
06
07
08
09
10
11
12
13
Ht
15
16
17
18
19
20
21
22
23
99
.A.
V
ea
10(
06C
060
08C
06C
05C
07C
12C
14C
20C
20C
30C
14C
14C
.'60
International Airport Burbank Long Beach
V/x
HK
HK
HK
HK
T
VI.*
050hn
RH
76
47
42
31
21
12
09
13
20
25
18
22
41
53
51
"C9
150
T
74
57
59
68
73
80
84
86
82
79
80
77
71
68
68
Rh
WIN
09
D?
75
37
36
36
32
24
18
29
37
40
33
35
46
50
49
T
ittr
87
C3
£5
12
12
13
6
9
4
4
14
5
5
3
7
11
11
12
12
12
12
12
11
11
8
6
16
ii-j
5-6
273
ff
£4
2
3
2
5
2
5
5
3
5
3
5
7
9
12
12
13
14
12
9
5
7
3
5
3
FF
e.iz
047
V
SO
250
500
300
250
250
250
250
250
250
400
400
400
400
250
V50
?S(1
V&
T
vv
060
RH
76
21
20
20
20
11
14
11
10
10
10
10
10
14
11
T
74
59
59
67
71
78
82
84
85
85
85
84
78
76
76
1 ftH
'.'e*'i "I!,
?sn
D?
75
21
20
25
28
22
29
24
24
24
23
22
19
24
18
T
MAX
10 85
DD
£6
16
8
16
15
1
3
6
6
7
6
6
6
6
6
8
16
15
15
16
16
8
DD
6-9
71 ;
f?
34
8
6
5
7
5
5
6
8
12
9
12
9
9
9
6
6
12
7
7
10
5
FF
5-12
OVi
1
V
CO
J040
iloso
040^
030
030
k>40
060
080
LOO
LOO
100
LOO
L40
L40
V/x
HK
HK
HK
K
K
HK
HK
•. f rj VW
RH
76
55
55
43
26
17
14
07
04
8
14
15
18
23
34
''•'(. '-
JJUb80lUJlJ
T
74
55
54
63
75
80
84
87
90
87
87
83
76
71
68
RH
1)4
C?
75
38
38
40
37
32
31
17
08
21
32
32
29
32
38
T
91
DD
S6
16
1 1
15
7
8
13
13
13
12
14
14
13
13
9
8
12
13
13
14.
14
3
4
4
14
D3
e-&
776
ff
24
1
7
5
1
1
6
6
6
7
8
5
.6
1
1
8
10
12
10
10
7
5
3
3
6
FF
6- 12
363
V
80
V/x
RH
76
T
74
1
D?
75
DD
86
ff
34
• ""' 700333
-------
DAILY WEATHER DATA
Year 1973
Month Oct.
Day 31
L.A. International Airport
Burbank
OV
Long.Beach
00
01
02
03
ok
05
06
07
08
09
10
11
12
13
111
15
16
17
18
19
20
21
22
23
i
99
V
CO
150
14C
12C
12C
IOC
IOC
IOC
IOC
IOC
IOC
IOC
IOC
12C
120
'-'60
100
V/K
T
1 1 n
RH
76
57
39
33
27
21
14
50
53
47
30
46
51
58
58
V69
Loo
T
74
55
60
65
72
77
82
76
75
75
77
73
69
66
65
WIN
14
DP
75
40
35
35
37
34
29
56
57
53
43
51
50
51
50
-
83
CD
£6
3
5
5
6
7
4
2
5
4
4
3
12
11
11
11
11
11
11
11
7
5
7
4
DD
6-9
21:
ff
S4
1
6
3
5
3
3
6
5
6
7
8
5
9
8
10
9
9
9
8
6
3
3
3
3
FF
6.12
r>6"
\
V
CO
250
250
500
500
200
200
150
100
100
100
070
070
030
)60
V60
[no
V.'x
HK
HK
T
vv
L80
RH
76
22
33
26
22
18
14
13
12
14
18
28
22
24
26
VS'=
nn
T
74
58
57
66
72
78
82
85
86
86
85
71
75
75
72
RH
1 ?
DP
75
21
28
31
31
32.
28
28
28
31
37
37
33
35
35
T
MAX.
Rfi
DO
86
16
16
15
14
15
15
15
13
8
6
7
9
8
6
7
8
5
6
5
5
2
.4
4
DD
6-9
88'
f*
34
5
5
5
3
3
5
5
3
7
6
6
3
8
10
12
8
9
9
5
7
5
6
6
FF
6-12
OV
1
i
V
60
500
150
050
050
080
100
120
L50
150
L50
L2q
1.40
L40
)80
V60
b™
v.v
HK
HK
VM
')&0
";H
76
61
61
30
27
22
20
18
17
20
17
31
33
41
43
'•'IS
hso
T
74
51
S3
63
71
76
79
80
80
80
80
78
74
68
65
RH
Ml H
17
D?
75
38
40
32
35
35
35
33
32
35
32
45
43
43
42
T
MAX
81
DD
86
2
16
13
11
4
9
13
10
3
2
8
9
9
9
8
8
7
14
14
14
6
8
8
2
DD
6-9
1^1
ff
84
3
5
1
1
1
1
5
1
3
1
8
6
7
8
10
9
6
12
9
3
3
5
8
3
TF
6.12
040
V
60
Wx
RH
76
T
74
D?
75
DD
86
ff
84
;
1
7 O D
-------
DAILY WEATHER DATA
Year 1973
Month Nov.
Day 01
L.A. International Airport
Burbank
Long Beach
00
01
02
03
oU
o?
06
07
08
09
10
11
12
13
15
16
.17
18
1 19
20
21
22
23
i
V
£?
030
03C
02C
020
v/*
FK
FK
HK
HK
030 HK
0401
05C
07C
08C
08C
08C
08(
IOC
100
veo
HK
HK
T
VW
99 |987D02
RH
76
93
93
93
75
68
65
63
61
70
73
78
78
81
78
ve9
)30
Y
74
58
59
60
65
68
69
70
71
69
68
66
65
64
64
Fm
61
DP
75
56
57
58
57
57
57
57
57
59
59
59
58
58
57
t'l-i
72
C3
£6
4
4
4
3
4
4
4
4
2
4
6
5
7
11
11
12
11
11
8
7
7
5
5
DD
6-9
221
ff
C4
5
3
3
6
5
6
7
5
6
6
6
7
7
6
10
12
12
6
5
3
6
6
5
1
FF
e-12
06?
V
CO
070
060
050
040
040
050
040
040
040
050
050
05C
05C
05C
.'60
140
V.'-j
H
H
HK
HK
HK
HK
HK
HK
HK
HK
HK
HK!
HKj
~.JU
D90
RH
76
58
66
57
46
48
42
53
55
52
59
70
78
81
84
T
74
50
51
55
60
67
69
70
71
73
71
68
65
64
63
: RH
140
42
D?
75
36
40
40
39
46
45
52
54
54
56
58
58
58
58
T
WAX
V3
DD
G6
4
5
4
14
12
15
12
6
12
7
6
6
6
8
8
8
8
8
8
7
4
5
5
5
DD
6-9
631
fi
34
6
3
6
6
6
6
5
6
5
3
5
12
12
14
12
12
12
6
7
8
9
12
12
12
FF
6-12
06f
V
00
015
040
040
040
060
070
080
100
100
100
100
100
080
08 Q
veo
V.x
FHK
HK
HK
HK
HK
T
Vw
hRO^1
RH
76
80
69
62
63
63
61
59
59
63
65
70
68
70
70
v=s
140
T
74
56
56
60
62
65
68
69
70
68
66
64
64
63
63
RK
M1H
b9
D?
75
50
46
47
49
52
54
54
55
55
54
54
i>3
53
53
T
MAX
/O
DD
86
4
4
3
3
1
4
4
3
3
4
5
7
8
8
8
8
8
8
8
7
6
7
'I
7
DD
6-9
22*
if
24
5
6
6
5
6
5
6
8
5
5
8
7
13
12
13
8
6
i
8
6
8
8
8
9
FF
6-12
06
V
GO
Y.'x
RH
76
T
74
i
D?
75
DD
G6
ff
S4
700333
-------
DAILY WEATHER DATA
Year 1973
Month Nov.
Day 02
a>
L
00
01
02
03
oU
05
06
07
08
09
10
11
12
!?•'
ill
15
16
17
ia
1 19
20
21
22
23
99
.A.
nn
to
10(
12C
12C
12C
12C
12C
12C
12C
15C
15C
12C
IOC
12C
12C
V60
International Airport . Burbank Long Beach
Wx
T
J87|ooo
RU
76
87
87
84
76
75
70
70
68
68
63
70
75
81
84
V69
.20
T
74
60
60
61
62
64
65
65
66
66
67
64
62
60
60
MIN
63
DP
75
56
56
56
55
56
55
55
55
55
54
54
54
54
55
T
M*. 1
be
CD
CS
7
8
9
12
12
14
14
11
9
11
12
12
12
11
11
11
11
12
12
11
12
11
11
11
DS
6-S
Vbb
ff
84
8
5
3
6
5
3
2
3
5
5
7
9
10
8
9
9
9
8
8
6
7
6
5
3
FF
t,. 12
!!v
GO
070
)70
070
)50
050
350
350
350
370
370
LOO
LOO
370
LOO
1
1!
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052J |id7C
V.V.
H
H
H
H
H
T
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r.H
76
84
84
81
78
75
70
65
61
60
63
65
75
78
77
T
74
59
60
61
61
62
65
66
67
66
66
65
61
60
59
IRH
V£Sr 1 Hit;
C?
75
54
55
55
54
54
55
54
53
52
53
53
53
53
52
•
T
M*r
14%50| 60 67
DD
C6
7
7
7
7
5
6
7
6
5
7
8
8
8
8
8
8
8
8
8
8
8
8
8
6
DO
6-9
433
tf
34
14
12
12
10
9
12
13
12
12
12
9
9
12
14
14
14
14
13
7
9
6
10
12
9
F F
5- 12
112
II V
11 CO
070
070
070
080
100
120
L50
L50
USD
|150
h.50
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||L2D
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!!
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LUU100
RH
76
77
75
69
67
58
58
56
54
56
58
63
64
64
67
'r, £
WO
T
74
58
59
62
63
66
65
66
67
65
64
64
62
61
61
RH
Mirj
b4
C?
75
51
51
52
52
51
50
50
50
49
49
51
50
49
50
T
MAX
67
DD
£6
7
7
6
6
7
9
8
2
2
8
8
8
8
8
8
7
8
7
9
7
8
8
4
6
DD
6-9
411
ff
84
9
7
6
6
1
3
3
1
1
5
10
9
14
13
12
9
12
7
6
7
9
8
6
6
FF
5- 12
04fl
V
CO
Wx
RH
76
T
74
D?
75
DD
S6
ff
C4
. . ' . 70033:
-------
DAILY WEATHER DATA
Year 1973
Month Nov.
Day 05
VD
L
00
01
02
03
Ok
o?
06
07
08
09
10
11
12
1?
lit
15
16
17
18
1 19
20
21
22
23
99
.A. International Airport Burbank Long Beach
V
£0
IOC
100
100
050
050
100
080
080
140
200
200
300
140
140
veo
V/x
HK
HK
VW
0btW
tJH
76
71
74
61
49
45
45
45
48
53
50
56
64
67
67
"£Q
)b6
T
74
50
50
55
61
65
66
67
67
66
66
64
62
59
60
MI N
4b
DP
75
41
42
42
42
43
44
45
46
48
47
48
50
48
49
T
ui. r
67
CD
£6
3
3
4
5
3
5
4
4
3
11
11
12
12
13
11
12
12
12
10
10
2
1
3
05
6-S
322
ff
S4
1
2
2
5
3
3
3
2
3
5
5
8
9
12
10
12
13
8
8
3
3
2
2
3
F F
e. 12
0431
V
£0
>50
L50
LOO
LOO
)70
)70
)70
L50
L50
.50
,50
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veo
570
VJk
7
"JV
L2U
FIH
76
90
39
35
37
36
28
28
35
31
35
41
46
T
74
51
60
64
66
68
71
71
70
69
64
62
60
1 RH
!-/? WIN
170
^B
D?
75
48
35
36
39
40
37
37
41
37
36
38
39
T
MAX
/I
DD
36
14
15
12
12
12
7
8
7
8
8
8
8
6
.1
14
14
|14
16
DD
S-9
f.!
34
7
5
6
5
6
7
12
13
12
12
12
9
6
3
3
5
5
5
FT
6- 12
i
|
V
80
)40
)40
)40
)40
)50
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)70
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&.20
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!!
1
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HK
HK
HK
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P.H
76
70
68
59
49
44
38
42
44
41
41
42
50
58
56
.,-..
P^sol140
T
74
46
46
53
58
63
67
68
68
69
69
67
62
60
59
RH
WIN
JB
D?
75
37
36
39
39
41
41
44
45
44
44
43
43
45
43
T
MAX
71
DD
86
3
3
3
3
4
4
4
14
13
14
14
13
9
8
12
12
13
13
12
11
4
4
6
14
e^s
i II
ff
C4
1
1
3
5
1
1
1
3
5
3
6
1
LO
L4
L3
8
LO
L3
8
3
1
1
1
1
FF
6- 12
132
V
CO
Wx
RH
76
T
74
D?
75
DD
86
ff
84
70033!
-------
DAILY WEATHER DATA
Year 1973
Month Nov.
Da/OS
L
00
01
02
03
oU
0?
06
07
08
09
10
11
12
13
iU
15
16
17
18
! 19
20
21
22
i 23
1
.A. International Airport Burbank Long Beach
_V
CO
14C
IOC
08 C
080
060
06C
06C
100
IOC
14C
14C
14C
140
140
V50
Wx
HK
HK
HK
T
VM
99 P60ioo
RH
76
71
71
59
51
41
36
42
49
54
51
51
60
69
78
V69
160
T
74
51
50
56
60
65
69
69
68
67
67
67
64
61
61
RH
Ml r;
36
D?
75
42
41
42
42
41
41
45
48
50
48
48
50
51
54
T
ut r
70
CD
G6
4
3
5
3
15
6
7
4
5
7
2
10
11
11
11
11
11
12
11
12
10
8
9
13
D-.
6-9
423
ff
84
5
5
2
3
2
2
2
2
3
2
3
3
9
12
10
9
9
8
8
6
3
2
2
3
FF
6-12
175
V
CO
200
200
L50
LOO
LOO
LOO
LOO
)40
)40
)30
)40
)80
)70
)70
veo
h™
V.
75
DD
86
ff
C4
1 1 fcii-v^ ^. „-. .„„ _ 70D333
-------
DAILY WEATHER DATA
Year 1973
Month Nov.
Day 07
L.A. International Airport
Burbank
Long Deach
— ,
00
01
02
03
Oh
o?
06
07
08
09
10
11
12
13
3*
15
16
17
18
1 19
20
21
! 22
23
99
V
CO
06C
06C
06C
03C
03C
025
03C
04C
05C
05C
07C
07C
05C
03C
veo
V/x
HK
HK
HK
HK
HK
HK
HK
HK
HK
HK
HK
FHK
T
VK
U2btm
RH
76
80
80
69
56
51
49
55
61
65
68
76
84
87
90
V69
1Mb
T
74
54
54
58
63
67
70
70
70
69
69
66
64
63
62
KH
Ml N
4y
DP
75
48
48
48
47
48
50
53
56
57
58
58
59
59
59
T
12
D3
£6
4
4
4
5
4
5
7
4
5
6
7
12
11
12
11
11
11
11
12
11
12
10
7
8
tii
e-s
423
ff
84
5
3
3
2
3
3
3
3
3
5
3
3
8
8
7
8
10
9
8
7
5
3
3
2
FF
e-12
3331
.—
V
GO
070
100
07C
04C
030
030
030J
020J
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023
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030
050
050
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HK
HK
HK
HK
HK
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HK
HK
HK
RH
76
68
68
58
56
42
37
33
36
32
43
43
51
54
70
T
74
52
52
59
65
68
72
74
75
78
76
76
70
67
64
T j fcH
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75
42
42
44
49
44
44
43
46
46
52
52
51
50
54
T
13J020| 32 78
DD
06
10
14
10
10
10
10
10
7
7
7
7
7
6
8
7
8
8
8
8
11
1
13
4
4
DO
£-9
f.!
34
3
3
3
3
3
3
3
5
6
9
9
8
9
7
9
9
6
9
6
3
3
3
2
3
FF
6-12
S44^b'
!|v
|l 80
050
040
030
040
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070
070)
100
100
100
Sioo
!l20
080
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| v60
VVx
HK
HK
HK
HK
HK
HK
Vf/
HRO
SH
76
68
64
59
64
63
58
56
53
51
61
65
70
70
73
V e &
030
T
74
50
52
55
59
64
67
68
70
70
67
66
64
63
62
RH
MIN
51
C?
75
40
40
41
47
51
52
52
52
51
53
54
54
53
53
T
MAX
71
DD
86
6
16
16
12
10
9
6
4
1
7
4
6
8
8
7
8
8
9
14
14
16
1
5
3
DD
6-9
321
ff
84
3
3
3
3
1
3
1
1
1
1
5
3
9
7
7
10
9
6
9
6
5
2
1
3
FF
£. 12
n?o
i
V
GO
VJx
RH
76
T
74
D?
75
DD
C6
ff
84
7 00 3 3 i
-------
APPENDIX C
LARPP PROGRAM LAUNCH SITE DATA
172
-------
Lvl Ht.(m)
MB
T°C
RH
10/1/73 - 0713 PDT
Imperial Rd. &
Old School House Rd,
Downey, CA
Sfc-1
2
3
4
5
6
0
450
840
1390
2150
3100
1012.6
960
916
859
784
700
15.6
12.5
9.6
15.2
12.8
6.6
74
90
34
12
10
12
10/2/73 - 1310 PDT
Holt St. & SR #71
Pomona, CA
Sfc-1
2
3
4
5
6
7
0
740
930
1100
1400
1870
2100
988
903
883
886
834
787
765
19.9
11.9
12.4
15.5
15.1
13.0
11.4
44
76
63
20
13
13
13
10/4/73 - 0750 PDT
Alameda & 7th St.
L.A., CA
Sfc-1
2
3
. 4
5
6
7
8
9
10
11
0
40
400
420
600
1310
2270
2880
3200
3500
3520
1005.2
1002
960
958
939
862
772
719
693
670
658
15.7
14.8
17.0
22.3
23.4
19.6
11.7
5.7
4.5
6.2
6.1
73
73
43
19
10
10
10
10
10
10
10
173
-------
10/5/73
Los Amic
- 0700
jos Hosp
PDT
. &
Lvl
SfC-1
2
3
Ht.(m)
0
320
380
MB
1008
968
963
T°C
11.6
7.7
9.4
RH
90
92
63
Imperial Rd.
Downey, CA
Signal knocked out by interference.
10/10/73 - 0708 PDT
Los Amigos Hosp.
Downey, CA
Sfc-1 0
2 400
3 450
14.0 85
10.6 84
13.6 75
Radio signal blocked out, ascent terminated.
10/11/73 - 0640 PDT
Alameda & 7th St.
L.A., CA
Sfc-1
2
3
4
5
6
7
8
9
0
210
390
780
820
1570
1920
2550
3080
12.5
15.2
15.2
13.8
12.6
11.1
6.8
2.7
1.5
55
47
42
44
43
30
32
20
18
174
-------
Lvl Ht.(m)
MB
T°C
RH
10/12/73 - 0740 PDT
Alameda & 7th St.
L.A., CA
Sfc-1
2
3
4
5
0
50
170
490
970
1003.8
997
987
950
896
15.0
14.8
16.8
17.8
16.5
60
48
43
40
18
10/15/73 - 0637 PDT
Los Amigos Hosp. &
Imperial Rd.
L.A., CA
Sfc-1
2
3
4
5
6
7
0
230
330
360
480
1470
3170
13.0 100
10.6 93
15.2
20
22
19.3
7.5
,5
,7
17
13
8
8
5
10/16/73 - 0737 PDT
Alameda & 7th St.
L.A., CA
Sfc-1
2
3
4
5
6
0
150
360
600
1450
3100
14.9
19.3
23.9
25.0
19.3
6.8
90
43
25
19
18
21
175
-------
10/17/73 - 0740 PDT
Alameda & 7th St.
L.A., CA
Second Ascent - 1119 PDT
Alameda & 7th St.
L.A., CA
10/18/73 - 0718 PDT
Lvl
Sfc-1
2
• 3
4 .
5
.' 6
Sfc-1
2 .
3
4
Sfc-1
2
Ht.(m)
0
100
420
1210
2200
3050
0
100
300
850
0
100
T°C
17.9
22.0
25.3
20.4
9.5
6.3
27.5
24.6
27.0
25.3
18.0
19.1
RH
43
33
18
18
35
16
36
31
18
20
82
62
Los Amigos Hosp.
Downey, CA
10/23/73 - 0800 PDT
Los Amigos Hosp.
Downey, CA
Sfc-1 ,
2
3
4
, 5
6
7
8
9
10
11
12
13
0
150
320
1170
1310
1320
1400
1640
2200
2410
2550
2560
3110
16.5
15.7
14.2
9.5
6.9
9.3
8.4
4.9
3.7
5.2
4.8
94
93
92
91
70
20
30
88
77
13
8
176
-------
Lvl
Ht.(m)
T°C
RH
10/24/73 - 0726 PDT
Los Amigos Hosp.
Downey, CA
Sfc-1
2
3
4
5
6
0
170
390
520
1250
1500
11.3
14.4
12.7
11.5
*
14.5
14.5
90
75
63
77
24
20
* Missing data between these
two figures.
10/25/73 - 0641 PDT
Alameda & 7th St.
L.A., CA
Second Sound - 1023 PDT
Alameda & 7th St.
L.'A., CA
Sfc-1
2
3
4
5
6
7
8
Sfc-1
2
3
4
5
6
0
120
280
310
380
800
1400
1980
0
120
missing
490
1000
1420
12.8
14.4
14.4
14.6
16.4
17.4
14.6
11.8
21.5
18.1
data
18.1
17.6
14.8
88
93
89
60
55
22
20
16
54
47
26
17
17
10/26/73 - 0747 PDT
Alameda & 7th St.
L.A., CA
SfC-1
2
3
4
5
6
7
8
0
110
200
370
750
1400
2160
3050
13.6
12.4
15.3
17.0
17.0
14.1
12.7
7.0
93
86
65
48
33
14
13
17
177
-------
Lvl
Ht.(m)
T°C
RH
10/27/73 - 0701 PDT
Alameda & 7th St.
L.A., CA
Sfc-1
2
3
4
5
6
7
8
0
90
450
570
1440
1970
2540
3080
14.0
21.8
23.5
24.5
17.0
14.7
9.3
8.9
64
25
18
17
17
16
17
14
10/28/73 - 0848 PST
Los Amigos Hosp.
Downey, CA
Sfc-1
2
3
4
5
6
0
160
240
630
1550
3180
25.0
23.5
26.3
25.1
19.7
8.1
19
16
15
16
15
14
10/29/73 - 0618 PST
Los Amigos Hosp.
Downey, CA
Sfc-1
2
3
4
5
6
7
0
170
370
780
1510
2600
3150
10.7
18.4
21.5
22.5
18.3
13.0
8.7
59
20
15
13
12
11
10
178
-------
10/30/73 - 0617 PST
Los Amigos Hosp.
Downey , CA
11/1/73 - 0530 PST
Alameda & 7th St.
L.A., CA
11/2/73 - 0825 PST
Los Amigos Hosp.
Downey , CA
Lvl
Sfc-1
2
3
4
5
6
7
Sfc-1
2
3
4
5
6
7
8
9
10
Sfc-1
2
3
4
5
Ht.(m)
0
80
570
1050
1250
2230
3150
0
260
300
330
510
600
610
1200
1230
3000
0
290
980
1400
1550
T°C
13.0
22.5
19.8
19.3
18.4
12.1
6.0
13.8
13.0
13.5
13.5
15.8
16.7
7.9
17.2
13.1
8.5
7.3
8.5
RH
50
30
13
12
13
12
13
93
86
54
39
17
13
9
76
92
92
84
30
179
-------
Lvl
Ht.(m)
T°C
RH
11/5/73 - 0525 PST
Los Amigos Hosp.
Downey, CA
Sfc-1
2
3
4
5
6
0
80
400
1050
1530
3120
6.8
11.0
12,
11,
10,
,1
,7
,3
4.2
92
82
50
15
12
21
11/6/73 - 0544 PST
Alameda & 7th St.
L.A., CA
Sfc-1
2
3
4
5
6
7
0
70
630
740
1970
2970
3070
10.0
12.9
13.5
15.6
11.7
7.5
7.1
62
49
17
15
17
17
41
11/7/73 - 0636 PST
Alameda & 7th St.
L.A., CA
Sfc-1
2
3
4
5
6
0
150
400
670
1500
2950
13.3
13.6
16.3
16.3
16.1
8.2
57
54
40
48
39
36
180
-------
APPENDIX D
RADIOSONDE DATA SUMMARY
LOS ANGELES INTERNATIONAL AIRPORT STATION
NOTE: Units used by Air Pollution Control District
Pressure - Millibars
Temperature - Deg. Cent.
Dew Point - Deb. Cent.
Height - Feet MSL
181
-------
RADIOSONDE DATA SUMMARY
Los Angeles International
STAT i nu Airport
00
(SJ
?ATE: 1973 Oct 1
T,ME: 0538P
!.4
1012
1000
948
9ZI
909
898
893
861
850
/ ,
5.8
16.7
15.7
12.3
10.6
9.1
14.7
15.9
16.5
16.1
9. 12
12.5
12.1
11.7
10.6
-
-
13. 16
110
430
1870
2690
3050
3410
- 3580
-
-
4590
4930
TI»E: 1130P
1012
1000
954
936
921
916
911
850
20.1
17.3
12. B
12.2
11.9
11.9
18.1
16.5
12.4
11.5
li'.b-
11.5
10.3
7.0
-4.6
-
110
460
1770
2300
2790
2920
3050
4980
DATE: 1973 OCt 2
T1ME! 0539P
17. 20
1013
1000
957
906
895
875
862
850
j
21.24
16.9
16.1
12.4
9.8
7.2
14.6
14.2
15.3
25.28
12.7
11.0
Ll.l
8.9
-
-
-
-
29.32
110
460
1640
3180
3510
4130
4569:
4930
T'««E: 1130P
1014
1000
912
908
903
897
850
20.2
L7.2
9.9
12.2
12.9
14.6
15.0
10.6
9.4
9.3
2.4
-0.4
-0.7
-7.8
110
490
3050
3180
3350
3540
5000
DATE: 1973 OCt 3
TIME: 0540P
32 34
1013
1000
959
923
912
897
890
884
875
857
850
35.36
15.7
L5_*l_
LI. 9
9.3
8.5
8.6
L2.0
13. 2
12.6
L5.5
L5^3_
37.38
11.7
1 1 .5
11.5
8.9
-5.4
-
-
-
-
—
39.40
no
4fin
1640
2660
2990
3440
3670
3840
4130
~A
A
TIME: H30P
1013
1000
952
930
913
906
850
L9.4
L7.4
12.9
L2.1
14.0
L8.4
15.9
LI. 2
L0.7
9.4
7.5
2.2
_
_
690
flin
110
470
1800
2490
3020
3250
5000
DATE: 1973 OCt 4
TIME: 0533P
4 1 . 44
1010
1 OOO
978
958
931
850
45.48
14.3
14,3
15.1
17.4
23.6
18.0
49-52
11 .9
1/1,0
11.3
6.3
-
-
53.56
110
380
980
1570
2390
4960
TIME: 1130P
1010
1000
981
969
959
951
850
19.4
17.6
16.1
17.4
25.4
25.7
19.0
14.2
13.5
13.0
11.9
-
_
_
110
380
920
1280
1570
1800
4990
DATE: 1973 OCt 5
T!ME: 0532
57. rC
1007
1000
966
953
946
934
f-iit.
895
850
6 1 . •:• 4
1 S.fi
14.8
12.7
13.4
13.8
20.0
21.4
21.4
18.0
65-68
1A 1
14.5
12.7
10^8
ME 1 GM T
69-72
110
310
1280
1640
1840
2200
2850
3380
4880
TIME:
1008
1000
936
930
888
850
20.1 P.4.0
17.8
14.2
18.2
20.1
L2.9
LI. 7
2.5
-
17.8 j-4.9
1
p
110
340
!200
!360
1670
1910
-------
RADIOSONDE DATA SUMMARY
Los Angeles International
STAT i ™
00
U)
oO
•'-E: 1973 Oct. 7
-,ME: 0542 P
! . -i
1011
1000
931
850
5.8
16.4
15.6
10.0
3.8
9. 12
9.5
8.8
8.0
3.8
13. 16
110
420
2390
4860
T.ME: 1140 P
1012
1000
945
902
864
850
__l
19.3
16.8
12.2
8.9
5,5
4.8
8.9
8.2
8.5
6.6
3.9
-2.2
110
440
2SBO.
3000
4960
4890
°«TE: 1973 OCt 8 .
TIME: 0531 P
17.20
1009
1000
965
864
850
21.24
13.9
12.7'
11.0
8.4
6.9
25.28
[13.1
12.1
10.4
7.5
6.2
29-32
110
360
1310
4330
4800
T.ME: 1100 P
1009
1000
J45
850
17.6
16.6
LLJL
7.0
13.2
12.5
11.5
6.9
110
370
L940
4830
°«TE: 1973 Oct 9
T,ME: 0540 P
33.34
1008
1000
991
944
920
850
35.- 36
13.4
13.7
14.2
11.4
11.4
6.6
37.38
L0.4
L0.2
LI. 5
1.1.4
7.2
2.6
39.40
110
340
620
.1940
2620
4800
T,M£: 1140 P
1005
1000
975
935
907
882
869
850
22.1
16.8
15^
13.2
10.7
9.5
10.0
8.4
L0.2
L0.9
U)^0
7.6.
7.3
4.2
2.2
0.4
110
340
.1020.
2230
3020
3810
4200
4820
O.TE: 1973 Oct. 10
TIME: 0542 P
41.44
1010
1000
976
962
941
923
869
850
45.48
13.6
13.8
14.0
14.4
15.0
14.6
10.7
9.4
49.52
10.0
13.1
12.0
5.8
^
^
^
_
53-56
110
370
1050
1440
2070
2590
4270
4860
Ttv,E: 1140 P
1010
1000
984
976
870
852
21.7
18.9
18^5
20.9
14.2
10.8
7.2
7.2
2.8
0.2
-3.1
-8.4
110
380
850
1050
3670
4920
O.TE: 1973 Oct. 11
T IME :
57. -0
1007
1000
988
980
958
891
-&5JL
T t ME :
1007
1000
963
950
889
850
61.64
13.4
14.6
15.1
14,4_
15.1
14.0
10.8
65.68
5.2
3.2
4.5
4-4
2.9
-5.2
-6.Q^
21.7
18.6
17. S
17.0
15.2
12.1
L0.2
J.8
-Drq _i
-2.6
_
69-72
110
330
66Q
850
148_Q_
3540
4JJJLQ.
IK
31(
1 38(
174(
361(
,.484(
-------
RADIOSONDE DATA SUMMARY
Los Angeles International
STAT i n* Airport
00
*>•
c-g
:.TE: 1973 OCt. 12
-:,£: 0538 P
1 . 4
1008
1000
984
971
957
939
895
850
5.8
13.4
15.4
15.5
15.4
17.1
17.8
16.8
13.9
9. 12
11.3
i2.il
11.1
10.1
1.9
-3.0
-
-
13. 16
110
330
750
1150
1540
2070
3410
4870
T,ME: 1120 P
1009
1000
9_78,
963
955
931
850
21.2
18.6
Ifl.S
17.8
18.6
19.1
15.5
14.1
J.1.9
q n
8.1
-1.3
-3.1
_
110
370
3RD
1410
1640
2360
4920
O.TE: 1973 OCt. 13
T,ME: 0534 P
17.20
1010
1000
982
941
914
850
;i. 24
j^e.o
17.0
21.5
22.9
22.4
18.1
25-28
12.4
12.5
0.1
30.0
30.0
30.0
29.32
110
390
890
2100
2920
5000
r,ME: 1130 P
1011
1004
i r>f)n
996
982
970
930
850
22.8
21.4
71 6.
21.4
26.3
26.8
25.5
19.1
10.0
9.0
7.3
5.7
_
_
_
_
110
330
430
560
950
1310
2490
5070
DATE :
TIME:
33.34
TIME:
_35-_3&_
37.38
19 - 40
DATE:
T 1 ME :
41.44
TIME:
45-48
49.52
DATE:
TIME:
53-56 1 5T-fC
T l ME :
61.04
65-68
i£ 1 GH T
69-72
-------
RADIOSONDE DATA SUMMARY
Los Angeles International
STAT i ON Airport
00
Ul
:.TE: 1973 October 14
-I-E: 0530 P
l . A
1010
1000
984
972
935
850
5.6
16.1
16.9
22.0
24.9
25.5
19.6
9. 12
15.3
16.5
15.5
_
_
_
13. 16
110
400
850
1180
2300
5030
T'»E: 1130 P
1012
1000
990
981
971
939
850
22.3
20.9
23,5
23.5
25.9
26.9
20.4
13.7
14.1
13.4
9.2
_
-
110
440
720
980
1280
2260
5010
OATE: 1973 Oct. 15
TIME: 0532 P
17. 20
1012
1000
988
976
970
965
9561
947
21-24
13.4
12.9
12.7
13.2
13.6
21^8
23.^1
24.3
25-28
13.0
12.2
7.2
-5.9
_
_
_
_
29.32
110
450
750
1080
1280
1410
1670
1970
TIME: 1130 P
1013
1000
992
985
979
965
948
878
850
16.4
13.7
13,5
17.0
21.4
24.3
26.0
23.0
20.2
12.1
12.6
12.5
10.8
-
_
• _
-
-
110
460
690
890
1050
1480
1970
4170
5100
D,TE=1973 Oct. 16
T.ME: 0540 P
33.34
1011
1000
990
975
941
917
850
TIME:
1012
1000
991
984
964
935
923
850
1
_3^3S-
14.3
13.8
13.4
22.2
24.8
24_5
19.6
37.38
14.3
13.8
9.2
_
_
_
39. 40
110
410
690
L120
2130
2850
JJHQ_
1139 P
17.2
15.4
1507
23.6
25.5
26.1
25.3
19.8
13.0
12.7
11.3
0.6
_
_
_
_
110
450
690
890
L510
2330
>720
5090
DAT£: 1973 Oct 17
TIME: 0538 P
4 1 . 44
1012
1003
1000
992
976
961
3S9
850
TIME :
1013
1000
996
955
973
931
850
45.48
11.6
10.9
12.7
1 21.9
|_2§... 4
25.8
22, -L
19.1
1146
20.3
18.0
17.8
26.0
27.5
26.5
19.5
49.52
11.6
10.5
10.7
17.4
_
_
53.56
110
360
440
660
1120
157Q
-isia
5090
P
11.8
9.8
8nl
^
_
_
-3.5
110
480
590
890
1210
2530
5130
OATE: 1973 Oct 18
tIME: 0546 P
57. fO
1013
1006
1000
974
912
_S6_L
J3JaQ.
T !M£ :
1014
1005
1QOO
993
954
918
884
61 .'34
17.5
19.2
24.0
25RJ.,
24.0
20.4
19.5
65. 63
13.6
8.8
2.2
_2^Q_
69.72
110
330
470
1Z5JJ.
3150
4760
sioa
1130 P
26.0
22.8
24-0
26.4
27.8
25.9
23.3
10.9
5*2
5-4_
5.8
_
1.3
110
380
JL3J1
670
L870
2950
1010
-------
RADIOSONDE DATA SUMMARY
Los Angeles International
Airport
00
L-.-E: ]
M-E- C
„--
1 . 4
1011
1000
986
976
940
874
850
TIME: •
1012
1000
971
921
850
.973 C
)533 I
5-8
17.2
19.6
23.6
25.5
25.8
20.6
18.3
L130 I
29.5
27.9
25.8
25.0
19.1
)ct. 1
>
9. 12
12.5
2.9
1.3
_
_
-2.5
-3.2
5
5.6
2.9
2.5
1.1
-0.8
9
13. 16
110
430
850
1120
2200
4270
5060
110
440
1280
2790
5100
0 A TE :
T IWE:
17. 20
1011
1000
987
966
952
940
912
866
850
TIME:
1012
1007
1000
984
951
940
922
910
850
1973
0530
:\-24
15.0
13.0
12. 2
L3.6
L8.2
L9.1
18. 0
L4.6
13. 0
1131
L9.6
L6.7
15. 7
L5.1
L8.4
18.2
17.3
15.5
14.3
Oct.
P
25- 28
13.4
J.2.7
L0.9
9.8
8.2
_
_
-
LI. 6
P
12. 3
LI. 2
LI. 5
9.7
2.6
0.3
11.5
12.9
-2.6
20
29.32
110
400
750
1350
L740
2170
2990
4430
4930
110
230
430
890
L840
2170
269C
3050
4970
DATE:
TIME:
33 -21™
TIME:
35-3$
37.38
39.. '.0
0 *TE :
TIME :
41.44
T I vE :
45- 48
J9-52
5^. =6
C * T E :
TIME:
5~.rC
T 1 ME :
6 1 . •;• 4
,» ,T|
65.68
69.72
1
-------
RADIOSONDE DATA SUMMARY
Los Angeles International
STAT i OM Airport
CD
:.-E: 1973 Oct. 21
-,-E: 0530
i . 4
1012
1000
980
947
940
919
908
894
886
861
850
5.8
15.5
13.2
13.0
11.8
12.6
12.2
11.9
11.6
13.5
9. 12
14.4
12.9
12.7
11.5
12.3
11.9
13. 16
110
430
1020
1940
2170
2760
10. Si 3080
3.6
7.7
11.8
11.0 -
3510
3810
453U
4900
Ti"E: H30
1012
looq
979
941
922
909
893
85C
18.1
15.8
14,8
12.1
12.8
11.4
13. C
11.4
14.8
13.8
14.2
11.9
10.0
4.8
_
-3,1
110
450
1055
2170
2390
3120
3610
4930
O»TE: 1973 Oct. 22
T.ME: 0530
17. 2O
1012
1000
928
922
904
895
867
850
21.24
16.1
14.9
11.0
10.7
11.0
10.0
12.2
12.6
25- 28
13.4
13.1
10.5
5.0
-5.0
-8.6
_
_
29-32
110
440
2490
2660
3220
3480
4360
4900
T.ME: 1130
1015
1000
971
876
863
854
850
17.2
14.8
12^,9
8.6
6.5
8.8
9.0
13.3
12.4
12^2
8.3
_
110
520
1350
4170
4590
4860
4970
S«TE: 1973 Oct-23
T.ME: 0539
33.34
1016
1000
967
875
860
850
3S._3j>
16.7
14.5
13.1
8.0
8.5
8.5
37.38
16.0
13.9
12.4
7.2
-2.5
-3.0
39. JO
110
550
1440
4230
4690
5000
T1«: H30
1017
1000
922
881
867
850
18.4
14.3
i:u^
10.2
9.4
8.2
14.9
14.3
11.3
5.0
6.5
6.4
110
570
2820
4070
4490
5040
DATE: 1973 Oct. 24
T,ME: 0532
41.44
J012
1000
940
921
905
886
868
850
TIME:
L011
LOOO
995
948
924
850
45- 48
12.9
12.5
12.3
11.4
11.8
14.7
13.7
14.0
49-52
yo.i
9.1
-2.7
7.3
0.6
0.5
-1.9
-2.5
53-56
110
430
2170
2720
3220
3810
4360
1900
1130
20.2
13.9
12.7
16.6
16.1
12.1
L0.6
5.3
4.4
_
_
-10,2
110
420
560
L940
!690
4970
O.TE: 1973 OCt. 25
TIME: 0535
57 - *C
i.009
1000
963
951
943
931
,905
895
850
T 1 ME :
0010
1000
993
985
968
955
942^
850
61.64
13.9
15.3
16.9
16.9
17.7
18.7
18.1
19.3
15.9
65.68
12.0
14.0
8.8
4.5
_
_
_
_
-
1130
20.4
18.0
17..4
18^6.
18.0
19.2
19.9
15.8
15.0
14.3
14.1
12^,3
9.4
2.2
0.3
69.72
110
360
1410
1740
2000
2330
3150
3440
4910
110
380
J9O
790
1280
1640
?mn
4940
-------
RADiOSOMDP DATA SUM.MAKY
CD
00
Los Angeles International
ST/.T i ™ Airport
1
1 -1-- .
- 1 ^ E :
I',---
i 1010
1000
986^
973
I 960
939
921
850
TIME:
1010
1005
1000
981
967
920
901
850
„.„.!
1
1973
0539
-.
5.8
14.6
14.5
14.5
13.8
15.9
17.6
18.0
15.4
1130
20.4
18.8
18.5
18.1
20.5
19.4
20.0
16.4
[
Oct.
P
9. 12
13.3
12.6
13.1
12.7
9.7
1.6
-4.7
13.6
12.6
12.0
11.4
6.9
-2.9
-
-6.0
26
13. 16
110
380
750
1150
1540
2170
2690
4920
110
230
400
950
1350
2760
3380
4980
c * TE :
71 ME:
17.20
1012
1000
987
960
924
850
TIME: 1
1013
1000
905
850
1973 <
3548 1
rzr
13.3
21.4
24.3
25.2
23.7
18.1
135
30.1
28.4
23.3
18.6
Dct.
?
7.5- 23
11.4
1,6
_
w
—
_
10.6
5.3
—
_
27
*.3*
110
450
820
1640
2760
5070
'
110
480
3310
5120
S*TE :
TIME:
33-3-1
TIME:
_J35_-3S
37.33
.
39- JO
0 » T£ :
TIME:
41.44
TIME:
-••5. •'•?
.,.„!
.19.? 2
55. 56
0»TE :
I luE :
57.^0
TIME:
61-04
65- 68
69-72
-------
:^AD5O:3OMDE DATA SUMMARY
Los Angeles International
Airport
03
J:.-E: 1973 Oct. 28
-,«: 0550
1012
1000
978
943
887
850
!
-,JL°...
15.7
25.8
25.2
26.4
22.4
20.0
9_J2_
-2.3
-
-
-
-
-
13. !6
110
460
1050
2100
3870
5100
;
TIME: 1130
1013
1000
L__9J23_
850
:zi
29.7
28.7
_2_2^2.
20.5
-0.6
_
_
_
110
490
-3-410.
5130
O.TE: 1973 Oct. 29
TIME: 0534
JilL
1010
1000
991
976
937
850
;j.2j
13.7
17.9
22.0
21.1
22.7
18.7
-?iiii
4.2
7.1
1.0
-
-
-
-. 2?ji?J?—
110
380
660
1080
2260
4980
T.ME: 1130
1011
1000
_SL7J~
941
912
850
J
27.1
23.6
21^4_
22.4
20.7
18.6
4.2
2^.5
_
_
—
110
430
2JL5JL
2120
3050
5030
O.TE: 1973 OCt. 30
T.ME: 0551
^
-^ii4-
1013
1000
979
917
850
_35._?S_
15.6
21.6
22.0
19.9
17.0
AkJlL
4.6
-1.7
-
-
-
TIME: 1212
1014
1000
918
850
1
1
28.7
2JJ1i_
21 .-?
17.6
-7.3
_
.3.9."'°.-
110
480
L050
2920
5070
110
51 Q
2950
5120
.O.TE: 1973 Oct. 31
TI«E: 0550
j ; . .14
1011
L006
.000
986
965
930
905
875
850
15.1
15.2
L9.5
22.5
22.8
21.0
20.8
19.2
18.5
43. : 2
0.4
-4.1
-
-
-
—
-^_
-
J£JLL
110
230
420
820
1410
2490
5000_
1230
5030
T,*E: 1130
1011
1003
&QIL_
978.
966
948
850
L_L
1
c
23.2
20.0
21 -1
23.0
22.5
23.6
L8.9
Ll.O
Ll.O
1 -1
0.1
-1.0
110
360
430
1280
1410
1970
5040
O.TE: 1973 NOV. 1
TIUE: 0540
1007
,1000
965
955
945
930
. 850
T,ME:
1007
1000
94?
930
915
868
85O
.it*.
14.8
13.8
12.5
11.0
16.5
17.0
16.5
i 5- 6n
" ~™
13.41
13.4
12.5
6.1
_
_
_
HEI-HT
4iiLL,
110
310
1280
1570
1870
2300
4820
1220
21.2
19.5
1 T Q
13^5
14.4
15.7
17.5
14.1
1?^0
177
9.2
-4.9
-5^4^
1 1 O
"51 0
i f./in
2300
2790
423^0
_ M.RAn
1
-------
RADIOSONDE DATA SUMMARY
Los Angeles International
STAT i™ Airport
.-.IE: 1973 Nov. 2
-,„£: 0530 PST
1 . 4
1010
1000
970
850
5.8
16.1
15.4
13.5
5.0
9. 12
12.9
12.7
13.5
4.7
13- 16
110
400
1120
4840
1
T.ME: 1130 PST
1012
1000
94?
850
1
1
18.5
_L5_^5.
11 7
6.3
|
12.0
_LQ^2J
i n Q
3,8
110
460
71 in
4910
O.TE: 1973 Nov. 3
TIME: 0530 PST
\r. 20
1014
1000
953
861
850
31-24
14.6
13.4
10.0
3.5
4.1
25-28
10.2
9.2
9.4
0.0
-!Qv8
29-32
110
510
1840
4590
P4910
TIME: 1130 PST
-LQ15-
1000
03-7
863
S50
19.3
liL-Q_
11 fi
4.0
7.1
5.0
5.1
i n
J!^9
3.9
110
540
?^nn
4590
4980
DATE :
TIME :
33.34
35- 3S
35-38
39.40
TIME:
_J
.
DATE:
TIME :
•41.44
TIME:
45-48
49-52
53.56
DATE:
TIME:
57. rO
TIME:
61-64
65-68
H E 1 GH T
69.72
-------
DATA SUMMARY
Los Angeles International
s r AT ! ON _Air£ort
?»TE: 1973. Nov. 4
-.»£•: 0530 P
! . A
1015
1005
1000
984
942
912
892
| 867
| 850
5.3
—- — -
1:LiZ
12.4
11.6
11.0
8.3
6.6
7.4
5.6
6.5
^
9. 12
ILi
2.0
3.4
3.3
7.8
-0.4
_^3.J^_
110
430
530
950
2130
3020
-7.9! 3610
-8.0
-
4400
4930
T,ME: 1130 P
1016
1011
1000
947
889
878
j 868
850
~~H
19.3
17.7
16.8
11.3
6.7
6.7
9.0
8.7
3.8
3.2
3.5
2.5
1.6
•10.5
-
-
. 1 J_
110
230
560
2030
3770
4100
4430
5000
O»TE: 1973 Nov. 5
TIME: 0530 P
,JuJ:J2-
1016
1000
984
927
905
850
,„, JDE. .r
-L'-iL.
11.2
12.6
12.7
10.9
11.6
11.6
— ™-^_
.25^28.
5.5
6.4
4.8
2.7
-
-
°"E: 1973 Nov. 6
TIME: 0628 P
,,,,GHT| P,F5
—^.Ji,
110
550
980
2660
3310
5010
-Sijy..
1017
1013
1000
991
984
977
951
895
| 850
1
T
J> 5..J3S.
11.0
11.0
13.1
12.4
12.8
13.2
, 1
3 7 . T8_
4.5
1.8
8.4
'7.7
6.4
0.5
13.9 (-7.5
15.1
13.4
-
-8.0
--S.-JS—
110
230
570
820
980
L210
L970
3610
5070
TIME: 1130 P JTIME: 1130 P
1016
1008
1000
986
951
937
898
882
850
_L_ _
18.6
17.0
16.8
14.2
13.2
13.0
13.6
12.8
12.3
5.5
5.9
5.4
3.8
2.7
-3.3
_
_
-9.5
110 J1017
330
590
980
1940
2330
1011
1000
985
972
965
3510 | 953
4000 [ 933
5020 J 924
869
( 850
19.7
18.3
16.4
16.6
15.8
16.0
16.6
15.8
17.1
15.4
13.9
7.8
6.9
6.5
5.2
1.5
_
_
_
_
-4.0
110
230
580
950
1310
3540
1870
>460
>720
1490
1.2 ^100
= »TE: 1973 Nov. 7
TI«E: 0548 P
GZ
1015
1010
1000
773
946
885
850
J6..1_8
13.1
13.5
15.6
16.6
19.5
17.3
16.8
.iiO^
7.6
7.6
4.0
-1.6
3.7
5.2
4.5
_42/JLL,
110
200
520
1250
2030
3940
5090
TIME: H44 P
1016
1007
1000
986
946
898
868
850
19.9
17.9
17.4
17.7
17.9
19.5
17.3
17.0
12.9
12.6
12.8
11.5
5.7
7.3
5.3
4.3
110
330
550
920
2130
3610
4560
5130
O.TE : ] q7l Nnu, f)
TIME: 0605 P
.JL^°-
1014
1000
970
965
955
912
864
850
831
700
T , ME :
1014
1006
1000
960
951
939
933
925
882
850
-,,, ]„„ ,T
^oi-'JiiJ
15.6
14.7
12.7
16.3
17.5
18.5
15.5
16.3
18.2
8.4
65. eg
14.1
14.-2
5.6
7.5
1.4
-6.8
69_IL.
110
490
1350
1480
1770
3080
4590
5030
5680
1141 P
19.3
16.6
15.7
13.4
16.4
16.7
18.4
18.6
16.6
18.6
13.5
12.0
11. 9
L2.8
L0.4
110
330
5OQ
1640
L900
5.6 ^260
6.2_
6.1
1.5
„
>43fl
!690
1040
1050
-------
APPENDIX E
RADIOSONDE DATA SUMMARY
EL MONTE STATION
NOTE: Units used by Air Pollution Control District
Pressure - Millibars
Temperature - Deg. Cent.
Dew Point - Deb. Cent.
Height - Feet MSL
192
-------
RADIOSONDE DATA SUMMARY
El Monte
VD
oo
S.-ITE: 1973 Oct. 1
-,„£: 0538 PST
i . .1
1005
1 OOQ
qq?
922
916
915
1 91 1
1 900
879
850
.... L. „
5.8
16.4
1 6,-?
1 R.I
q q
11.2
14.0
J-&.J.
16.5
16.5
15,2
.. 9.J2
12.7
i ?Tn
1 1 .1
q •*
-5^J1
_^A
-S.I
-6.0
-10. Q
-11.0
OATE: 1973 Oct. 2
r,ME: 0539 PST
,£,,,T| „„
. 13. 16 ! 17. 20
3021 1005
1
_j44jQ.ljLnoa
660
JZ&1Q.
_2fl2o_
.18_5JL
3020
3350
4000
4940
T,«:1333
1004
1000
593
960
. 929
910
907
894
886
88(j
850J
23.5
21.8
20.6
18.5
15.0
15.4
16.8
15.7
16.4
17. C
16. C
11.2
9.6
, 8-9
9.0
_ 7.4
0.4
2.0
1.0
-0.9
-10.0
-11.0
302
420
_&2Jd
1570
2490
3080
3150
3540
3810
959
922
893
879
866
850
;i.24
15.7
16.1
12^4.
9.7
10.0
14.2
25-28
12-A
J_L^6
11.5
_a^.o
8.9
-0.4
14.9-jll.O
14.9-
11.0
H.'.rHT
29- 3Z_
302
450
1540
2690
3580
4000
4400
4930
T,ME: 1330
1005
1000
_221_
971
956
946
902
890
878
22.4
20.6
19.1
18.1
15.6
15.9
11.5
11.2
14.0
404o| 865 1 15. 2
4970J 850 15.0
12.0
9.5
8.5
9.1
8.4
9.5
8.5
7.9
7.5
-1.4
-1.0
302
450
620
1250
1640
1970
O.TE: 1973 Oct. 3
TIME: 0545 PST
•ffl±
1000
m
lot
895
870
861
859
850
•£*&•
13.8
liill
ra
i£;f
11.3
12.1
12.3^
13.3
14.0
37.38
-T2T2
11.7
W
§:I
1:3
3.5
-14.0
-14.0
-13.0
-12.0
^fe
dsn
°«TE: 1973 Oct. 4
Ti-e, 0542 PST
jiiiii-
i nn-^
620
17701 100C
9m
3510
4270
4560
4630
4910
T,ME: 2030
1005
1000
974
925
915
911
3280 j 899
3710^ 861
4070
4460
4960
850
20.!
is.:
15.5
12. (
12.'
13.]
15.7
17.4
16.5
11.1
8.8
.8.0
8.3
7.3
2.9
-11. C
-10. C
-10. C
302
450
1180
2590
2920
3020
3410
4630
4970
982
978
954
938
926
892
850
TIME :
1001
1000
976
957
951
936
911
892
850
J.Ji™.
q.4
11.4
13.5
_L3_..3
17.3
22.6
23.8
22.0
18.2
49.52
9 3
10.6
12.3
11.7
6.2
-5.0
-4.0
-6.0
-5.2
53. :5
O.TE: 1973 Oct. 5
TIXE: OS40 P,«!T
5~ • ~0
" 302 "I8B9
390
890
1020
1710
2170
2530
3590
4970
2030
27.6
26.4
24.0
23.1
23.0
24.6
22.6
.23.0
19.6
11.1
9.6
9.1
8.7
1.3
-3.0
-5.0
-5.0
-7.0
302
340
1050
1570
1770
2200
2990
3580
4980
980
l?5
§60
956
;;a
947
935
915
4k*4-
TU
fci
13. a
12.5
Wl
17^2
19.5
21.0
891L20.4
879
850
Tl*£:
1001
1000
992
953
934
929
895
877
850
20.6
18.1
£5.68
11:3
iiil
11.3
11.8
|:5
-7.0
-7.0
-7.0
-7.0
-9.0
2034
22.0
20.8
18.9
16.5
16.2
17.5
19.5
19.2
17.1
12.5
10.9
9.9
10.1
4.2
4.5
-7.0
-8.0
10.0
69-72
W
-jJIft
1410
1540
M
1800
2170
2760
3510
3900
4900
302
340
560
1710
2260
2430
3480
4070
4900
-------
KAD3QSOMDS DATA SUMMARY
STATION
El Monte
~ » T£ :
r 1 WE :
i . 4
1005
10Q£
983
962
945
926
899
863
850
T.ME :
1000
958
858
850
1
1
L973
0544
11.2
12.5
11.4
11.1
9.0
7.5
71!!
6.7
6.5.
1351
22.6
17.5
fl."?
7.4
Dct.
PST
,..,
8.8
2 1
8.4
9.5
9.7
8.3
6.5
f:i
0.5
OJ5
PST
7.9
6.7
.5 0
5.8
J
302
340
820
1410
1870
2430
3250
3770
4200
4330
4770
302
1460
4RfiO
4820
OATE : J
TIME:
_ .11- JQ...
1003
1000
992
982
968
955
922
899
850
oroi
equ:
fai'
973 C
0540
8.8
10.2
12.0
12.9
12~3\
12,0
12.7
12.1
8.0
312 I
nd
pmenl
Il-Tft
)ct. ]
PST
7-5. 28
7.5
8.0
8.1
8.4
11., 5
9^2
-2^6_
-5.9
-9.0
>ST
.0
,-,n.
302
380
590
850
1280
1640
2&ZSL
3280
4840
DATE :
TIME:
33 -3-1
1001
1000
989
969
956
929
912
889
875
850
Tl«:
999
990
qq7
936
913
882
875
850
1973
0549
Tr,.
1Q_^
13.5
14. (
14«J
15^ C
14. (
12. (
13.2
10. g
1233
'25.01
71 .1
19.!
16.'
14.;
14. (
12.;
Oct.
PST
-1M9-T
6.1
5.3
2.1
1.1
0.7
-1.5
0.6
-2.1
-8.7
-11.2
PST
1.2]
-4-0
_7 t •)
-1.1
-1.6
-2.7
-7.4
-14. C
11
,-,^
T*n
620
1180
1540
2330
_285J}
3580
4070
4820
302
54O
T?in
213C
2840
3810
4040
4850
0 * IE :
T 1 '.< £ :
4 ' . -1 -1
1001
980
964
9i7
-_212
905
878
850
T I VE :
1973
0545
,/JLiiL.
H*2
15.4
Li5,9
J^-^6
JL5-J-
15.1
15.1
13.1
12
Oct.
PST
.'.9. 52
^=lk'=0M«
—iJL,
4.7
_J^o
4.0
-3.0
-1.0
-3.3
-7.6
-1.3
PST
12
302
890
_1350
O11Q.
2690
3120
3970
4850
0 ft TE :
T IME :
_11^2_
T.ME:
JluiL
--— '-
-.E . GH T
llLZi.
-------
RADIOSONDE DATA SUMMARY
El Monte
in
:.-e= 1973 Oct. 15
* 1 ME :
.,.s | .,„.
1 . 4
eq
fa
. (no
j
5.8 1 9. 12
CD"
ground
r~ "
jipmept
ilure
_flig
t±j
13- 16
!
TIME: 1230 PST
110.04 la?. 6 J10.7.
10QO
978
966
962
938
921
912
850
f
27.0
2 4. _6_j
25.1
26,4
26.2
25.6
26.4
20.8
~:
9.8
8.5
4.8
-3.0
-3.0
-3.0
-3.0
-7.0
302
420
1Q5JL
1410
1540
2260
2790
3050
5090
O.TE: 1973 Oct. 16
TfME: 0530 PST
17. Vj
1004
1000
992
984
971
961
947
931
833
876
nsn
,WL..rL,.Hf
21. 24
10.8
13.1
16.0
20.1
22.7
24.4
25.1
25.8
22.6
22.0
19.4
?.5. 28
9.7
10.6
9.6
7.8
J..1
2.6
3.7
-3.0
TJ.T
-1.4
_7_^?
W-32
302
400
620
850
1250
1540
1950
2430
DATE: 1973 OCt. 17
T.ME: 0530 PST
r-r-
33.34
1004
1000
992
979
954
928
904
873
3940
41301 850
smn
TIME: 1345 PST
JLQfll
1OOO
972
969
963
942
911
888
856
( 850
-2a^a
26.9
24.7
24.7
26,8
27.1
24.7
23.4
20.5
20.5
_ ..1
JJ5»5
i nTc;
9-2
8.7
3.3
-2.0
-3.0
-5.0
-7.0
-7.0
-JLQ2
4nn
H8Q
1310
1480
2130
3080
3810
4860
5060
^
12.3
17.5
20.5
23.1
24.4
24.6
23.4
21.1
18.6
,,3.
9.7
11.3
6.1
3.6
0.0
-3.0
-5.0
-7.0
-4.8
39.40
O»TE: 1973 Oct. 18
TIME. 0530 PST
41.44
302 Il006
430
660
1050
1770
2560
3350
4310
5060
TIME: 1300 PST
jjms.
i nnn
985
953
941
886
850
L
33.1
Tl Tfi
304
27.6
27.6
23.0
19.5
4.0
?,n
4.9
2.6
2.6
1.4
-0.5
302
A&n
79n
1840
2200
3940
5120
1000
993
981
953
876
850
TIME :
LjOjQ5_
i nnn
95?
896
850
1
r i
.-.5.48
16.2
20.2
22.5
25.0
26.2
21.7
20.0
49. c 2
Js^^i^JJ. •
9.1
10.8
5.C
3.0
2.1
-6.0
-7.0
S"» -f
™~~*
302
48 C
660
102C
1840
4250
5110
1300 PST
33.3
T7.1
77 4
24.4
19.9
5.0
7 ,n
T fl
3.6
2.3
302
4fin
R7n
367
5140
..
= .-E: 1973 Oct. 19
TIME: 0530
5- - --C
1005
100Q
994
986
969
938
890
850
61. -54
13.8
18.4
21.7
23.5
25.4
24.6
21.2
17.9
'ST
65.63 1
9.5
2.7
5.6
5.4
4.0
3.3
_!*!
3.8
59^7 2^
307
430
620
820
1310
2260
3740
5050
TIME: 1330 PST
ion"?
innp
4&9
925
892
850
3^.4
^1 n
77 S
25.8
32.6
18.4
1 . T-
f^j-f
c; i
1.9
-0.1
=1^5_
302
yJQQ
i 31 n
2660
3740
5060
-------
ii DATA- SUMMARY
El Monte
? * " t •-
- 1 v£ :
> . ,\
1009
laoiL.
976
904
1 850
7|w£:
1008
1000
iTB
902
876
1 850
— -—"
1973
0539
Oct 23 LTE: 1973 Oct 24
i£na release
| TIME : 0656
-.„. i:,. »
5-8
-LLu3
05-^
H,_«5
9.4
6.9
0. 12
."^
14.6
1 ? ,7
9.0
-£,-,-!^E,
13. 16
_..3H2
_5JLO
i inn
.J13ELO
6. 3i 5000
rn
1340
18.8,
18.1
15.8
11.1
9.9
7.4
15.4
14.2
, 13.0
10.0
8.8
6.2
302
520
-112Q
3380
4200
5010
,,,
JJOQ5.
1OOO
qni
956
923
902
874
850
„„. \^ -T
;i.24
..,._
9.^5.
JJl^l,
1 9 ,n
JJL»i
12.0
12.7
14.5
13.5
?.S. 2H
f R" S
8.1
ft.i
-8^5
7.1
-2^0.
-Q^fl,
-3.7
,^iit
3O?
440
._9.5JD.
1640
3030
3280
DATE: 1973 Oct 25
TIME: 0543
13.3.1
ltT02'
i nnn
981
§73
6T
qsi
946
942
935
927
413oi 902
491o| 891
L858
1 850
•'«: 1340
1003|
1000
97P
940
934
920
907
815
888
| 869
| 850
25.1
23.7
21*6,
18.4
19.3
19.4
18.6
18.4
18.0
17.5
15.9
7.3
7.0
_LJL
2.3
-2.4
-2.3
-4.2
-4.4,
-1.1
_^5.7_
-6.4
,-.,
-tar
1 1 ,q
ff-S
TSTS
^7.0
18.0
18.0
18.7
17.9
18.0
17.0
16.0
15.1
3,!3
— rrer
i n z,
%'%
6.4
u
3.4.
1.0
1.0
-0.2
-3.5
-4.2
30 . 40
-3tnr
^60
if?8-
1440
1 770
1900
2030
2230
2490
=3^50
3610
4660
4900
TIME: 1300
302| c
38o| e<
102_QJ D:
2120
2300
2760
315o|
3510J
3740J
4350|
4960J
roum
ruipmt
oblet
nt
s
i
O.TE: 1973 OCt 26
TIME: 0547
45.44
ruuT
1000
393
972
qfi?
953
946
938
920
889
881
850
J5.48
T2T7
11 £
H'd
8.8
1 7.S
J-L3..3
14.9
16.4
17.0
16.4
15.8
13. 61
Tl-e= 1300
L002
LOGO
989
968
965
93*
85C
1
^
25.4
24.8
23.5
22.3
22.6
22.6
17.1
49-52 [ 51.S6
"T7T7
-4Jk-r€
H'f
-10.1
_n.4
_4jJ3
4.9
-11.0
-10.0
-11.0
-11.0
-12.0
30:
37C
1?^
I2IC
14 AC
JJZAfl
1900
2130
2720
3670
3500
4870
7.2
7.1
6.8
6.1
-1.6
-5.0
-10.0
302
370
670
1280
1380
2730
4970
D » TC •
T 1 u t :
57. -C =1.64
65.68 1 59.72
TIME:
1
-------
RADSOSQMDE. DATA SUMMARY
El Monte
;»T£ = 1973 Oct. 29
-,.,- 0632
' . .1
_100J
100C
997
983
97l!
943
I 898
882
850
-. iA-
13.7
16. S
20.9
22.6
„..,:,„.,
— —
9- 12
13. 16
2.T 302
0AiE:1973 Oct. 30
TIME: 0633
,,,
s-ssfci-sfc—^!—
1007
-12. c| 40o| 1000
-10. C
-7.0
-5.0
22. 61 -3.0
20.0
19.7
17.5
490
890
1210
974
967
891
2000J 872
-7.ti 3410
-7.0J 3940
-9.0
TIME: 1332
100^
iooq
99C
96;
93(
85(
— — —
... .
27.9 0.5
26.8
25.5
23.5
23.2
-2.0
-3.0
O.Q
-5.C
-9.C
4990
302
410
690
1480
2300
5030
850
9.6
15.5
19.9
21.1
19.9
19.1
17.4
25- 23
3.1
-11.0
-7.0
-7.0
-7.0
-rS.O
•10.0
T.ME: 1332
1006
1000
970
900
879
850
29.8
28.4
25.1
19.4
20.6
18.6
•11.6
-1.0
-3.0
-8.0
-7.0
-8.0
TO- 32
302
500
670
1440
3740
DATE: 1973 Oct. 31
T.ME: 0631
3_3_.34_
1005
1000
998
975
968
4350J 961
5070
892
875
| 850
302
490
1350
3500
4200
5110
9.1
15.0-
18.4
21.2
21.7
22.8
21.2
19.0
19.0
3.0
11.0
-9.0
-7.0
-6.0
-5.0
-7.0
-8.0
-8.0
3,TE:1973 NOV. 1
TIME: 0633
•i : , .1 4
302 llOOl
440
490
1120
1360
1560
3640
4170
5010
TIME: 1335
1003
1000
994
950
933
912
889
862
850
30.0
27.8
26.6
23.9
22.2
23.0
21.1
18.0
17.9
-6.4
-1.0
-2.0
-4.0
-6.0
-5.0
-7.0
-9.0
-9.0
302
380
560
1840
2360
3020
3740
1000
982
948
883
850
18
10.2
10.8
13.5
16.5
14.9
15.5
TIVE: 1330
1000
988
953
933
916
906
885
459oJ 850
5010
1
21.0
18.5
15.4
14.4
15.1
14.6
15.0
14.4
4Q. *2
~.*a*r,*.~,f?X:
9.7
9.5
9.4
-3.6
-4.9
-3.4
•S3
O.TE: 1973 NOV. 2
TIME: 0637
= .
302 llOOS
330
820
1770
3760
4840
11.4
9.8
9.3
2.5
-3.7
-5.7
-7.8
-4.9
302
620
1640
2730
2760
3080
3740
1820
1000
978
916
885
865
850
TIME:
L004
LOGO
986
943
900
850
15.0
15.0
13.0
9.6
7.1
7.0
5.4
65. 68
11-7
11.4
11.0
8.7
6.5
5.9
4.7
IE IOHT
59.72
30P
410
1020
2810
3760
4380
4850
1336
19.5
17.6
16.1
13.0
8.6
6.0
17.1
9.0
8.4^
8.7
8.2
5.7
302
420
820
2070
3330
4880
.
VO
-------
DATA 'SUMMARY
El Monte
VO
CD
J.TE: 1973 NOV. 5
:,UE: 0644 PST
^
-ions
.JLOOC
985
97^
93'
915
| 912
901
Q81
85C
3Z
I- fi-
ll.:
12.1
12.1
11.1
10.4
10.4
12.4
10.5
-IdS-
4 c
3.1
3.6
0.9
0.4
-5.0
13. 16
-3XX2
. 54£
98C
1280
_236fl
3020
-1.4 3120
-4.4
-1.4
Lri-5
3410
3810
DATE: 1973 NOV. 6
TIME: 0636 P.ST
17.20
'""""
-1Q.QO
978
947
921
905
881
863
850
soooL
TI-E: 1330 PST
100£
100C
931
85C
—
20.9
19.4
13.,
12. (
6.8
3.9
-2.5
-I.'
302
—JLlfi
2530
5Q4i
__6^Q
J.0^4
13.1
13.9
13.6
14.6
14.5
13.1
12.7
|
3.5
4.1
2.9
-5.3
-1^2
-1.1
-7.6
-7.5
-7.0
302
570
1180
2100
2820
3350
O,TE: 1973 Nov. 7
TIME: 0630 PST
33-3.1
1009
1000
985
973
959
946
4150J 932
4690
5060
TIME: 1330 PST
1009
1000
977
929
888
881
859
850
1
22.4
20.7
18.1
15.2
15.5
16.4
14.5
14.5
1.4
1.0
o._3
-11.0
-5.0
-4.3
-6.4
-6.4
302
560
905
897
850
3,3,
9.2
JJL.6,
14.0
15.5
15.4
16.2
16.6
16.5
17.1
16.5
.i?^
6.1
3.6
4.0
2.4
1.5
0.4
-3.0
5.1
5.0
2.5
39. .10
302
980
1310
171Q
2100
2450
3350
3580
5080
TIME: 1333 PST
1008
1000
J^Lfll 9S2
2620
38701
4080
4790
949
91CJ
879
864
504d| 850
24.0
22.5
^0,6
18.0
18.7
17.8
18.2
17.0
4.4
4.0
3.3
-0.3
5.2
5.1
3.6
2.6
302
520
S20
2020
3220
4170
4660
5090
O.TE: 1973 NOV. 8
TIME: 0636 PST
,„.
41. 44
•1W7
i nnn
989
986
32?
965
_362
_935
917
889
870
850
.-.5- -1?
12*5
13*2
14.0
17.6
17.6
16^4
16.2
18.2
-E TE - T
TT
T275
1' 4
11.4
12.2
8.0
4.5
5.2
0.1
-6.2
-9.0
790
1080
1350
1510
i fii n
2360
J£9_2JL
3810
4360
5020
TIME: 1335 PST
1006
1000
993
942
m
907
862
850
__L JL"
22.7
21.6
20.1
16.5
17.8
17.8
19.8
12.3
12.4
11 .ft
10.7
a
5.1
-9.0
-7.0
302
470
2100
3220
4630
5040
O«TE: 1973 NOV. 9
TIME: 0652 PST
TOW"
971
937
111
nqn
885
_an_
863
858
850
1008
1002
i nnn
953
944
933
908
897
874
850
13 *7
12.2
in.n
11.5
12T0
12.2
15.5
1 S .7
15.7
15.9
16.5
16.3
b_S-_6_a_
11.9
11.2
~2*4
-2 7
-11_
_=JO_
-11
-10
-11
330 PST
20.0
17.6
1 7 f.
13 6
13. 51
17.2
18.0
18.2
17.5
17.8
11 7
1 f)_7
11 A.
1O.R
1'6.5
5.7
4.Z
-2.2
-9.0
-9.0
69.72
302
550
1350
2070
2170
9T*n
3740
3940
4360
4770
5050
30;
*->r
187q
213C
2430
.2210.
3540
4270
5060
-------
APPENDIX F
DAILY SUMMARY OF WEATHER DATA
199
-------
O
O
DAILY SUMMARY OF ,','EATHER DATA
.STATION: 75W
YEAR: 1973 • \'CNTH : Oct.
DAY: Tue.
DATE : 2
Xr~
El _j_Vsb j_ *x SVy RH
90
80 82 | 76
00
01
02
03
o»
OS
06
07
08
09
10
11.
12
13
1*
15
16
17 ,
18
19
20
21
22
23
VAR
99
I
r r •
|
t
i
!
T ~\ r\
7U ; 86 84
;
78
b30i H cy 76
030
62
62
H cy |76 |62
040J H cy 72 162
|040
H cy |66 !64
!040! H PC j 61 169
1
02
max
170
rrax
)00
040J H <£LR J59 J70
040
040
040
Vsb
60
340
H CLR 60
H CLI
I 61
H o*o| •
1
i
54
i •
5.5
\
49
A\
81
! i
1
88
IBT*
%
85 |39
33 120.2;
MH
Tli5 H850
33 [168L93
15.2
15jO
.
TS5d ftp
.52
25
ATid'p
5 fe03
SOL
77
V.'.C
TPH
!
1
PLX
LAX
BUR
LGB
ONT
PHD
PCX
SBO
SG
SA
MAX
72
71
72
72
76
82
75
74
75
BFL DAG
TRH
1
1
MIX
62
59
60
62
58
48
56
57
57
PSECIP
4B 70D595
59 Pr^lp «-i7 wi«d To..i 27 Day 120 - 0.4 PC
142
Tenth»
-------
N)
o
DAILY SUMViARY OF
SYAR
V
OZ 1 El Vsb **
90 i 80
00 j
L02
i
1
04
05
05
07
03
09
10
11
12
13
u
15
16
17
18
19
20
21
22
23
V»R
99
WEATHER- DATA STATION: 75W Y
Sky
82
SH
75
T
74
'•'d '^
J6 ! 81
10
~J_
H
OD
•> i ,
J i [__
~3i r
4
i 2 3
j
|030 H
P25|FH
p25
p25
FH
FH
D25LFH
OZ
max
100
p30|H
030
P30
p30
rrax
900
Vsb
60
JJO
cy
cy
cy
cy
cy
87
86
84)
80)
75
68
58
58
59
60
62
63
CLRj 61j 68
H CLR
H
H
CLR
CLR
•
I
!
56
50
2\ 4
6l 3
i
2j 3
ff
i
i
1
i.q
i.oj
2j 5J1.0J
6j 41.0
6| 5
101 6
10
71! 10
74j 10
60j 69
67
67
741 65
75
81
__
63
62
10
10
10
10
10
10
14
114
!
t
5vm
134
Vsb
70
D25
RH
nin
Jx
bO 74
14
5
8
11
|
70
Tb
1
1.0|
1.0!
0.0|
30
't r*Ti
3. 5 1 47
!25 12.1
0.0|
0.0
io!o.o
lolo.o
8JO.O
7
5
4
3
2
31 !
Ws W4 i Ws
6-12 6-9i 6-9
°43|lll
037
\
30
\
85
7.0
32|6.3
'*.
47
a\
70
EAR:
IBT
1973' MONTH: Oct. DATE:
);H KH j\2s
72 i L
—
I
85
38
15.6
I
j
I
82 !
1
1
Jl {13.4
IBT,| HH,
85 |38
i
MH
31
T125
156
•H85o!T£30J &
|
4^93
jUU
AT
d2p
r r i
15.2
:i5J3
,
1
t
I
I
H850
493
1
1
1
T£50i AP
L52^03
AT
15
d2P
52£
SOL 1! SFO
I
ii
1
I
i
!
SOL
66
3
V.
-------
tv)
O
DAILY SUMMARY OF ,','EATHER DATA
STATION: 75W
YEAR: 1973
MONTH:
Oct.
DAY: Thurs.
DATE: 4
H(<\| 90 60 .
00
01
02
03
0*
05
06
07
08
09
10
u
12
13
1»
15
16
17
18
19
20
21
22
23
VAR
99
VX Sky
32
KH T
76 74
i r
—
I
L
.
i
i
wd
ss
2
2
8»
2
'"4
~2l 4
— r2r 3
1 2 3
i 2| 4
|84 |55
2
3
bSOJH CLRI84 !56 2\ 1
b20|H 'CLR
plO|H CLR
PISJH PLR
78
68
58
63'
10| 3
10
62 170 10
b20jH 'CLR 57 |74
| p20,H CLRJ54 77
oz
max
358
rrax
325
D30
330
Vsb
60
mf20
4
4
101 6
10| 8
H JCLRJ60 pi 10) 9
H JCLR
64 ^8 1 10
H JCLR|67
L
t Vsb
5vm 70
lief10
74
74 10
72
84 167
92
92
65
62
RH
rain
54
T
max
31
11
10
10| 9
10
10
10
2
6
6
10
_3_
DD
1. i T.
D ' o
70 |
• i
—
•
i |sfc|
o.d
0.0
0.0
o.oi
0.0!
1
i i AT (
't l^'l ! 1ST
JIM i KH \2S H650!T830
72 j_
i
L 1
i
i p i •-
1
J.4.3|24|9.3
• I
o.o" !
0.0|
0.0|
o.oi
o.o!
0.3|
7iO.ll
5
3
3
. 5
5
2
l
9 16.1
I
Vs Wd | Ws
6-12 6-9 1 6-9
038
115|030
\
1
\
L43
j
86 122
!
14.3
i
i t '
!
i
18|9.6
\
24
**\
93
AP -At |d2P
i ;_
t
I
i j
^96ps~.^|
! |
j i
87
i
L
15 |19.4
1
IBT^I MH,
86
22
MH T125
15
143
!_._
'
i
499jl9.0l
t
1
H65ff T£Soi Ap
496|l80
522
"T d?P
9 619
SOL ! SFO 1 VHC ! TPH [ BFL 1 0.',G | TFJ4
i t
i
a
1
I
i
~!
1
T T _
• i
i
i
ii
SOL
178
t
i
i
r i .
1
i •
t
i i
i i
i !
t
i
t MAX! HIM
PLX
LAX
BUR
81
70
85
LGB J76
ONT J91
PHD !84
POM
SBD
SG
SA
89
95
88
77
55
56
53
53
99
38
52
47
99
53
PRECIP
L
70D595
Vsb
50
54
Preci|>
6-12 Wind Total
120
-------
N)
O
OJ
DAILY SUMUARY OF .VEATHER DATA
STATION: 75W
YEAR: 1973
V'ONTH: Oct.
DAY:
DATE :
Fri.
5
\AS
OZ
E. v.> [ «, : a.
90 ! ,80 ' 82
oo ! 1 : ;
01
02
03
04
05
05
07
03
09
10
11
12
13
1"
It
16
17
18
19
20
21
22
23
VAR
99
OZ
100
:
1
i
!
i
RH
76
T
7»
JjL
66
84
»
DO'
lOi 4 i
el 2
"2m
6i 2
! i ! |10j 4
i
! i i
015
loos
6
93 57 |. 6
2!
4
FHlcy 192 57 6J 3
F icy
b05|F icy
bio
92 i58
6
91 |60 | 10
H !cy 184 |63
bisiH ;pc
max
900
P20JH CLR
320
020
b25
H CLR
H CLR
70 tea
6
6
1.0
1.0
4J1.0J
4J1.0
5|l.O
ff
i,,
70
- - ' -
i
M
SlO.5!
64 J71 | 10| 8|0.0
58
74 10! 9 0.0
59 72
H JCLRI67 (69
L ' '
i
J6 (66
79 163
1 |87
i |88
1
l
!
1
1
Vsb| t i Vsb
60 5vm j 70
020
13f20
62
61
1
RH '
mi n
58
10
10
10
10
10
6
6
6
6
-—
't i V IBT
ft
1
MH
72
KM
t2.7l 34|8.788 21
1 1
1
.1
122 JL4.2| 37
10 0.0|
910.01
7
0.3
710.4
5|
6
8
5
4
101 61
T
max
74
; Ws 1 Wd j Ws
; 6-12; 6-9 i 6-9
042
333
)37
\
13
\
121
5.9
1
1
\
34
A\
87
88
IBT»
88
\2S lH85o!T850r AP
r~r
i
115.6
i
1
—
_.
•
AT ! d*p j SOL isFo
r~^
i
r48B|l8.0
24 I20.q491
!
i
t
1
MH4
21
HH
24
TliSJ H850
156
488
1
|
|. !
1
i
17.8
1
Tssd A p
180
2
AT
9
II
-
1 !
I|
V.;!C ' TPH ! BFL
-_L_H
!' 1
1 > >
d2p
24
i
SOL
78
PLX
LM
BUR
LGB
DAfl| TRH
i
1
ra
i
i
!
j !
MAX HIN PRECIP
73
75
74
67
ONT |78
PHD |86
PDN
SBD
SG
SA
77
83
58
59
52
59
51
4J
52
47
88 49
75 57
62 70D595
Vsb
50
57
Precip
6-12 Wind Total 25
125
= 0.5 PC
Tenths
-------
DAY: Mon.
DAILY SUMMARY OF WEATHER DATA STATION: 75W YEAR: 1973 VONTH : Oct. . DATE: 8
1^
1 Vsb t x Sky
90 ; 80 | ; 82
00 i
01 1
02 | I 1
03 !
04
j
l
j.
05 j !
06
07
C8
09
10
11
12
13
.14
5.5
16
17
18
19
20
21
22
23
VAR
99
1 i
I?H
7S
94
i |030i LH cy |96
oz
max
050
p20
LH cy
J040J H cy
|060j H cy
f
74
wd
84
5
H
00
2 15 !
2 [6
T2 L6
56
56
92 |57
90 |59
88
t>80 PC 184
lool PC
J120| PC
1
60
4 J7
2
2
5
5
6 j 5
6
6
6
62 ilO
68 J68 0.0
68
73
67 HO
66
76 165
178-
10
10
64 0.0
|82 162 0.2
|78
1
I
88
1
60
60
j
!
E, Vsb| t . Vsb
rrax 60 5vm 70
. RH
mi n
68
10
P.Q
\L4
10
6
2
T 1
1 (
cr.ax
70
4
5
3
3
7
l.C
l.C
ff
1 ' T
70
1
l.Cf
0.9
l.C
1
999
't
AT,
i
!
1
0.7!
0.6|
11 |0. 6
F2
p. 4
0.6
0.61
13 10.5
LO 0.4
6
7
7
5
3
4
Vs
6-12
342
9991
Wd | Ws
6-9l 6-9
133
047
999
\
JBJ-
MH ! KH S\25 !H850lT65o! 6P
72
L.J. l_
i
|9?9
1 1
AT
1 1
1
'
i
!
d2P
(L3L8H80 6.8) |
1 1
1
\
;
i
fi.\ IB\
i .
j99JL7.b|j83
MH,
999
MH
T
1
7.0
i
i
H850 TE5d Ap
999(l38|48d
68
14
SOL j SFO
L
ii
AT; d2P
5
516
SOL
v:;c
TPH
•
i
1
PLX
LAX
BUR
LGB
OHT
PHD
FDN
SBD
SG
SA
BFL
DAG
1 1
1
TR«
i 1
1
!
MAX! HIM
68
69
70
68
71
56
57
55
58
54
67 |50
22
66
71
53
54
55
PRECIP
.02
.04
T
.07
T
—
.03
.03
—
71. 1.56 IT. _.
83 . 70D59S
Vsb
50
mi n
Precip
6-12 Wind Total 25
158
o.,120_
= 0.7 PC
Tenths
-------
O
Ul
DAILY SUMMARY OF .VEATHER DATA
HR\| j 90
00
01
02
03
04
05
06
07
03
09
10
11
12
11
14
IS
16
17
ie
19
20
21
22
23
VAR
I
99
Vsb j *x 1 Sky
80 1 1 82
RH
76
T
74
j-
i
l
|
|060J H j PC
loeo! H BLR
J060J H PC
|070| I PC
I070J i PC
|
OZ
max
)00
100| CLR
070 CLR
080
|100
max
90C
Vsb
60
070
CLR
JjL
86
Ws
„
DAY: Tue.
STATION: 75'ti YEAR: 1973 \'CMTH : Oct. DATE: 9
DO
84
2 1 5
2 P4
[ 2
J 2
£-a-a-. : , ,:
89
88
84
76
5
4
L-2_L_5_
2 | 4
55 2
57
64
68 166
57 170
52
52
57
CLR! 63
66
1
1
t Vsb
5vm 70
LIOP70
60
70
75
2
6
6
2
73 |10
73 ilO
70
68
67
67
10
10
10
10
66 10
62 |10 j
j
i
1
1
RH
fnin
52
max
74
14
2
2
2
4
"~
^5 JO. 4
ff
i
1
5 10.3
4
0.4!
6 J0.4I
4 10.4!
5
9
0.3]
0.3|
12 J0.2J
12 J0.2J
8 0.1|
Q
7
7
4
3
5
4
0.01
1
1
Ws
6-12
047
'b
70
V
1
, r
sfc
1
19
13.4
11.41
!
it
-Tl I IBT
1.
i 1
I
6 io.q
26 O.d
^38 9.5|42 |0.6
Wd j Ws
6-9 6-9
lll|°47
\
1
\
134
1
'«.
6
&\
8
59
65
71
1BT4
59
I;H
KH \za He:o'Ts5oi 6P
72 i—
__j_.
999
L
AT d2p SOL f SFO
!
I
j
I 1
|l3.4)480i6.6;
i
1
1
' i.
il
il
i
f
t
l
l
1
1!
i
j
L999(22.CT482|8.4l
HH,
999
HH
1 1
j
1
1
TU5j H850' T£SC
999J134
480
66
Ap
502
AT
9
1
II
1
«2P
516
SOL
174
i.: ic TPH 1 art ! DAS! TSM
L .L .L .1..
I !
. 1
! i
I
1
i
1
1
i
i
i
F I
i i
j
! i
I i
j
I | j
PLX
LAX
BUR
LGB
ONT
PMD
PDN
SBO
SG
SA
i
i ! !
! 1
MAX! MIX ! PRECIP
73
73
74
73
73
69
75
73
75
73
55
54
50
50
T
49
38
49
50
48
56 L .
70D595
Vsb
'50
rpin
55
Precip
6-12 Wind Total
142
Day
120
= 0.3 CLR
Tenths
-------
to
O
DAILY SUMMARY OF' A'EATHER DATA
STATION!: 75'iV
YE^R: 1973 VCNTH: Oct.
DAY:
DATE:
Wed.
10
70
Tb
sfc|
1
I3.fe
i
8 [1B.5
0
0
o
1
Ws Wd
6-12 6-9
052
113
Ws
6-9
333
\
1
\
13£
't ^T|l.lBT
j
~~w*
69
KH i KH \2R 'H8co!T6oOl *P
72
999
i i
1 |
I
10|2.4
'*.
27
74
1
n
i.<
j
I8T4
69
*"»
399
__L_
1
AT
I^E_.
^
!
1
i
13.6
i
186|9-4
f2j2LSF*
108
I
MH
Ti«
H850
47 \13%6
i
-TS5d AP
94
534
AT
17
d2p SOL ! SFO
i
1
II
II
1
d'p
532
SOL
1.83
WiC TPH ! 3FL i D.SG
r •"
—
1
1
PLX
LAX
BUR
LGB
OKI
MAX
76
73
75
78
78
PHD i 70
PDN
SBD
SG
SA
78
78
80
i
1
i
i
i
HIM
54
54
50
51
45
33
48
49
46
77 |50
TRM
-~
PRECIP
6 700595
Vsb
50
53
Precip
6-12 Wind Total
= 0 CLR
138
Tenths
-------
ro
O
DAILY SUMMARY OF WEATHER DATA
STATION': 75W
YEAR: 1973
N10NTH: Oct.
DAY:
DATE :
Thurs.
11
X
pz
El
Vsb Wx ! Sky ! KH
SO ' 80
i 33 i 76
oo ! |.i i | i
01
02
03
04
05
OS
07
03
09
10
11
12
1.3
14
IS
16
17
18
19
20
21
22
2?
VAR
99
OZ
max
140
!
1
.
i
i
T | Wd | Ws
7» ; 66
"~2
|2
|2
2
!
i
peo
peo
p60
peo
H ICLR
64
62
8ft
4
4
4
5
LC6
1-2
55
2
56 2
H JCLRJ60 |58 j 2
H JCLRI54 J62 j 2
H CLRJ46 J70 10
P60IH CLR
41 |76 10
370 i CLRJ41 J78
370
380
380
i
Ei
rrax
900
Vsb
60
)60
|CLR 46 |76
t
5vm
080
PC 30 (74
L?c
56 J72
|60
10
10
10
10
[70 (10
•J66.I67 |L2
80
|88
Vsb
70
360
63 JLO
62 JLO
RH
ruin
41
T
max
80
8
6
2
2
J
5
4
5
„.
00
ff
"b 1 Tb |''t |-TI IBT
70 f
i i i
i
0
o
0 i
3 .0
3
6
i.0
J-l
L3
LI
9
7
7
5
3
2
4
3
0
).l i
).3
p. 2
p. 4
b.4
p. 6
).6
1
sfc|
1
1 p.3.4) 7
8
14.4
i
' i
i
|999|
Ws
6-12
)43
Wd
6-9
111
Ws
6-9
047
i
1
'",
1
\
134
1.7
15|0.7
1
'»,
15
&\
17
KH i HH
!_7_2 |
61
i
999
66
\25 IH350
T550I iP
AT i d2p
L L 1
I
. 1
i
!
i
ill!
r"
—
i j
ia4
- 1
J Q Q ]l. -L«t)
1 •
1
IBT^MH.j HH
66
999U
481
484
10.8)
tLl.U
i
1
T125JH650J T£5d Ap
13l48lP8Ll7
16 [l7
SOL ! SFO
I
v.xc ! TPH ! SFL ! ow
1
II
i!
IT
1
j
TSN
1
1
j
1
II I
il
I
J
.
il i I
1
I
1! 1 i •
SOL
17S
1
j
1
i MAX MIN PRECIP
PLX 177
LAX |73
BUR
LGB
80
80
OHT |81
55
55
49
51
45
PMO 1 74 |34
PON
SBD
se
SA
80
80
M
48
44
SU
76 |52
26 . 700595
Vsb,
50
55
Precip
6-12 Wind Total
.2 CLR
137
Tenths
-------
O
CD
DAILY SUMV.ARY
SVAR
HA.
00
01
02
03
04
05
06
1 07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
2?
VAR
99
, oz j Ei •_.
j 90
_Vsb
OF
r»T
80 1
DAY: Fri.
WEATHER DATA . STATION: 75W YEAR: 1973 MONTH: Oct. DATE: 12
Sky
RN
82_L76
i
!
!
•
JO 50
|050
|040
p40
|040
1
oz
irax
250
T
7»
176
H
CLRJ 70
H JCLR
TT
60
CLRJ52
H !CLR
H iCLR
54
56
60
65
_JL
86
U,
8»
2 3
2
2
2
3
4
4
2^ 3
2
2
4
4
2 4
2
6
4
3
46 170 0.0 4
38 |78 10 6
040| H CLRJ37 J78 p.0
040
J040
E,
ffflX
060
Vsb
60
90op40
TT
H
H
•
CLR48
CLR;49
CLRJ49
48
52
.58
62
! '
t
5vm
)90
Vsb
70
040
78 p.0 9
78 p.0 3.0
76 (10
75 p.0
72 p.0
68 |10
66
1
LO
10
LO
2
2
RH
mi n
37
T
max |
80
Q
9
6
5
2
3
2
3
2
H
OD
0.1
0.1
0.1
p.l
0.2
ff
'b
70
O.li
p.o
0.0
0.0
p.o
0.1
b.2
Tb
sfc)
1
13.4
't
^T, ,8T
1
i
I
21
|
J14 ;17^
I
Ws
6-12
Vd
6-9
542 kll
Ws
6-9
340
4.4
24|1.3(
j
_^._.
1
i
1 T
L3.4
•
78
i
i
32 (21.2
"> \
74
i
MH4
38
HH
T1S5
32L34
I
487IJ3.8
i
492
1
]
1
15.41
|
H850
487
1
!
Tcsd ^SP
138
516
4T d^p
11
SOL | SFO
II
n
II
1 "
SOL
K!C ! TFH [ EFL ! DAG TEM
[ __[_
==
I
i i
1
PLX
LAX
BUR
LGB
ONT
1
1
I
i
I 1
!
i
i
MAX HIM PRECIP
79
73
81
81
85
PHD J79
PON
SBD
SG
SA
84
85
55
551
51
50]
47
38
51
45
84 47
81 | 51
1 70D595
"50
rrin
54
Preclp
6-12 Wind Total 25
113
P.y
Tenths
= 0 CLR
-------
M
o
DAILV-SUMMARY OF LEATHER DATA
STATION:' 75vV
YEAR: 1.973
VONTH: Oct.
DAY:
DATE :
Mon.
15
X
.QZ
El
90
80
*x ! Sky
• 32
RH
76
T »„ \
74 86 34
°o ..j 1 ill
01 r r r
02)
03
04
05
06
07
ca
09
10
11
12
i3
.4
15
16
17
18
19
20
21
22
2?
VAR
99
i
1
j
1
1 ! !
I i i
84
P15|FH|CLFT84
318JFHJCLR, 82
320 H CLR
325; HjCLF
80
72
030i HiCLfli 581
340 i HJPC
541
06oi HJCLFt 50,
060
060
H CLR 50i
H CLR1 45|
1
1
max 1 max 60
200|»oo
. Vsb
030
t , Vsb
5vm| 70
L14f30
50
54
53
68
10
IT?
10
8
3
3
3
2
6 2
10| 3
H ! DO ! ff
[
i
*
1
't
1
1 1 .'
56| 14J.3 16.1!
55 10
56| 10
58J 10
64
72
10
10
3 0.0| i
8
L2.7
20
ATI
11.6
5 |o.0i | | |
5
7
9
0.0
0.1
i
1
-!
0.2!. j
76| 10| 7 |0.4| 7 13.5
77
79
80
76
74
73
66
RH
min
45
55
10! 7 io.3
10
10
10
10
10
10
10
2
2
6
T
max
82
bO — -- Tr»in
9 J0.3J
8 10.31
6
0.31
8 j0.2|
5
5
3
2
2
2
Pre
j
Ws Wd
6-12( 6-9
)53
755
Ws
6-9
337
rip
\
8
\
127
20
1ST
85
flH | KH \2fi |.HG50
72
18
!
32.5|88
\
20
A\
116
6-12 Wind Total
]
IBT4
85
u_ 1 - L_
!
13A
15ll6^
1
MH. 1 HH ! Tli5
T650J *P 1 4T
I— -
• • 1 •
i
—
d2?
SOL !
SFO
il
505f2DT
5TC
2Q.2
"esoPeso
18 b b4p05 202
32
111
1
1
!
Ap
521
il
1
II
II
•
L 1!
i
AT d^p
6
20
22
B.J, 120 - 0.2 CLR
Tenths
SOL
L64
K!C | TPM
PLX
LAX
BUR
LGB
ONT
PMO
PDH
SBD
S6
SA
6FL CAG
1
TRH
t
i
i
j
1
t
i
1
MAX! MIX
8C
6£
8";
T,
95
89
90
96
8*
i
M
56
56
56
55
53
43
54
52
49
SG
=.
PRECIP
70D595
-------
O
DAILY SUMMARY OF .VEATHER DATA
STATION: 75;V
YEAR: 1973
MONTH: Oct.
DAY:
DATE :
Tue.
16
\
HlK
00
01
02
03
0»
05
06
07
08
09
10
11
12
13
14
l!i
16
17
18
19
20
21
22
2?
VAR
99
OZ
El
Vsb I '^x Sky
RH ! T .j Wd
«,
90 I 80 j | 82 ! 76 74 66 8»
OZ
max
370
|
!
~~l 1 8
i
!
!
3
10 I 1
2
6
2
2
6 2
! : ! 6
i 1
|025| FHJ PC
2
78 1 59 i 62
79
02 5| HJCLRJ 78
020J H
012] H
l012i H
max
211
015J H
0301 H
030
030
H
H
1
PC
CLF
cy
60
58 2
59
62
48! 70
46|74
PC 58
PC
75
52 80
PCi 48 86
PC
1
Vsbj t Vsb
60 5vu 70
01 2L _ _pl2
44
46
46
50
60
86
84
82
76
70
1
RH
roin
44
T
max
87
2
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
•N
CO
0.41
3 |0.4|
2.J0.3J
4
6
6
6
6
0.4
0.9
0.8|
0.6
0.7
7 10.7.
7
6
6
3
3
4
2
3
2
0.6
0.7
0.7
Us
6-12
038
Wd
6-9
311
ff
Ws
6-9
023
'b
70
7
Tb
13.4
't
'-^1 I6T
21
i
4 J15.4
\
7
\
134
23
*\
21
11.4
10.7
H
114
;-;n i HH
\'2S 1H850
72
1 r
87 |23
j
1
i
i
90
IBT4
87.
MH,
23
1
I
i
114^
|
;
j
1
20 117.2
i
HH
20
503
509
T650I AP
AT
.!
:
t9^6
iy.a
!
!
Tlis! H650 TESd Ap
142
503
L96
533
AT
11
d2p SOL !| SFO
512
i
I
1
j!
ll
SOL
lib
VAC 1 TPI1 BrL
PLX
LAX
BUR
LGB
ONT
PHD
PON
SBD
56
SA
1
DAG
=
|
MAX
86
66
90
81
95
86
92
93
90
82
HIM
58
58
55
b4
56
45
55
56
50
53
TRM
PRECIP
72 700595
50
Precip
6-12 Wind Total 23
90
Day 120
= 0.6 PC
Tenths
-------
DAILY- SUMMARY OF ,','EATHER DATA
STATION: 75vV
1973
MONTH: Oct.
DAY:
DATE :
Wed.
17
X
OZ ,E1
90
oo ! !
01
02
03 j
o» i
05
06 .
07
Vsbj" Wx i Sk,
80 | j 82
.
i
RH
76
T wd Ws
7U i 85 • 6H
—
1
! i
i !
|04oj H £LR
! C3 |040
09
10
025
OJO
H CLR
H CLR
H CLR
j u 1040 H
12 !
13
14
15
16
17
18
19
20
21
22
2?
VAR
99
|060| H
060
060
OZ
max
270
Vsb
rrax
90C
060
Vsb
60
025
H
H
H
PC
PC
65
56
101 2
2
[10
4
2
10| 2
1 14, 3
2l 3
H i 00
ff i 'b
Tb | 't | -Tl i 1ST
L±II« _L r
r r _. .
1
t
62 2| 4 |0.1|
62 2| 2 to.l
50 64 2
44
JB
50
L70
10
7? j 10
4 p.lj
5
6
b.3
0.3|
4 110.9
78 1Q 6 10.4!
42 |84 14
PC 38 |88 10
PC
LPC
38
34
90
90
135 |86
136 184
44
46
t Vsb
5vm i 70
391
50
025
n>i
7 10.4
9 JO. 7
10J10 J0.7J
10)12
16
I4.y
. i 6 [17.8| 13
b.4l
id 10 to. 4|
id e
78 10| 3
77
RH
mi n
34
10|3
6
2
2
2
T
max
90
58
i
2
3
3
4
Pre
0.4!
|
Ws j Vd ; Ws
6-12; 6-9 6-9
045
111
033
rip
9.(
! i
\
4
\
109
\
16
MH
72
85
36
87
*\
14S
6-12 Wind Total
KH
\25
.
U.6
^1 [20.2
.
flj 1
85
36
27
L15
MH Tli5
HS5oiT65o! AP
AT | d2p SOL SFO 1 i.::c ! TPH
l j
_
_
— f—
i I
fo9|l9X)
1
i
513
1
^9.4
"esopesd Ap
2ljll6p°9^90
529
AT
3
d2p
4
43
D.,, 120 = 0.4 PC
Tenths
II
r
II
r i
ii
I! 1
i 1
1
I
!
Ii
SOL
165
PLX
LAX
BUR
LGB
ONT
PMD
PDN
SBO •
SG
SA
BFL
OAG
!
TR:<
. -T r .
j
j j
i
MAX
89
73
94
89
97
90
96
94
i
MINI PRECIP
46
53
57
53
56
46
58
55
~
-
70D595
-------
NJ
DAILY SUViV'ARY OF A'EATHER DATA
STATION: 75,V
YEAR: 1973 ^\ONTH: Oct.
DAY :
DATE:
Thurs.
18
1^
El ! Vsb ! ** Sky
RH ! T
"V
y
90 80 | 82 75 • 71 j 8S 84
oo r i -~\~ : - T~
01
02
03
04
] .
|
i
05 L
OS
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
VAR
99
„_ ! 2
! r 2
! 1 2
i
|_ i
! 16
I 2
! i i i i 2
i |46 72! 2
040 JH JPC 146 i 72i 2
D60|H PC
p80
[LOO
120
46 71| 2
JCLRJ45
ICLR 42
CLRJ36
74) 10
781 10
85! 10
N
DO
ff
'b ^b 't -Tl ! IBT'I H« i KH \2S iH8cOJTS5oi £P ! ^T j d2p SOL !! SFO
1 i '0 1 ! 1
5i 1 '
~3f 1
3
4
5
.4
4
4
4
2
5
3.6
b.s
3.4J
3.3
3.2
—
sfc
1 (17. 5
8 0.3!
| (120 1 (PC ;33 93| 10|lO
oz
max
270
}L20| (Pcy 32 93j 10jl2
JL50
L80
JPC i34 j 93
JCLRJ25
j
Ei
max
900
Vsb
60
)40
24
86
10J10
12
80| 10
26 78i 10
30
i 136
75
72
t ; Vsb | RH
5vm | 70 min
07d040
24
T
max
93
10
6
6
6
2
9
9
4
5
2
3
2
2
21 4
3.5
3.6
D. 4
L» i
r "" '
1
~~t~
~T
i
1 |
1_
i
. |
13J8.2I83 |50 i
1
&7.4|Jij
1
j 1 i 1
! 3 J22.8| 19
3.3
3.3
3.4
6-12 6-9 j 6-9
345
111
040
\
TN
1 CL75
\
13
i
1
5.Q
*\
82
19.4
\ ~
i ^
|
i
:
|
^1 ,|26.0(:j'ls
j
: i
i
IBT MH^
83
50
!
1
i
19.4) L
1
|
•
MH T125' H650- TE5d iP
1 1
31(L74f12
194P28
i
i
j
i
i!
v.:-:c TPH
BFL DA'al TSH
i! i
!;
I
1
i
I
II
AT dzp
5
1
SOL
L45
1
1
!
i
!
MAX
MID PBECIP
PLX J91 i68
LAX
BUR
LGB
OUT
PHD
PON
SBD
SG
SA
84
95
59
64
93 |60
96 |59
89 |50
94l63
94
96
55
52
91 58
48
70D595
Vsb,
50
70
Precip
6-12 Wind Total 27
123
Day 120
Tenth«
= 0.4 PC
-------
ro
I--
OJ
DAILY SUMMARY OF .VEATHER DATA
STATION: 75W
YEAR: 1973
V'ONTH: Oct.
DAY: Fri.
DATE: 19
XABioz
H\|
LL>_
90
00 I
01
02
03
0»
05
05
07
ca
09
10
it
12
l.J
14
115
16
17
18
19
20
21
22
23
VAR
99
Vsb i
80
*, •• ay
32
1
r •
t
1
RH ' T
w
d
Ws
76 i 74 | 86 ! 84
2
2
2
.H DD
^4"!
L_
«
'b ! Tb
70 |
3 !
4
1 2! 4
2 5
1 - 23
|060j
1050
050i
030!
P30
oz
jnax
270
)040i
070J
120|
\L5Q\
1
1
H CLR
H CLR
H CLR
H CLR
4C
4?
66| 2] 4
66| 2
36 70
30
27
,^6
84
' 2
6
10
H CLRj 2q_87| 10
H CLR
CLR
CLR
25j 88j 10
26) 90
24| 90
jCLRj 26;
j
1
28
88
83
3d, 80
4C
1 54
i
!
!
70
68
: 1
EI
max
Vsb|
60 !
21l[>25
t Vsb
5vnl 70
LO]J025
RH
mi n
24
T
max
91
10
10
10
10
12
12
10
10
8
6
10
5
4
4
6
5
8
10
[10
0.0
0.0!
0.0
p.o
D.Oi j
0.0|
p.o
0.1
9 b.i
10
8
8
6
6
4
5
4
b.o
0.0
sfc
1
|999
1
Ws | Wd
6-12 6-9
)47
111
Ws
6-9
043
\
1
17.2
't
-Ti
~
1
22|8.6|
1
1 -
IBT
89
KH
KH i\25
72
,
"T""
999
1
!
1
\
L72
\
22
*\
86
H850
T85ol *P
-j
AT , d2P
i y "
! -+- ^—
1
I
[17.2 ^
IBT*
89
"H,
999
35
294
KH
35
>10
IS. 2
1
i
1
L9.0| |
I
Tli5 H650J T£5d AP
i7fo6|i82h6
H-
AT
7
d2P
2
SOL ;! SFO
1
w. :c ! TPH
1
i
j
! 1
!!
i i
i t
i
l!
.
ii
i!
11
SOL
L57
PLX
LAX
EUR
LG6
OliT
PHD
PDH
SBD
SG
SA
~
MAX
91
57
92
91
94
88
93
91
8FL
DAG
i
i
i J
TKt
! • 1
1-
i
i
MIH , .PRECIP
66
60
62
55
60
51
60
56
95 56
90 J57
70D595
50
58
Precip
6-12 Wind Total
28
139
Day _I!0 = 0 CLR
Tenths
-------
NJ
M
*»•
DAY: Mon.
DAILY SUMMARY OF .VEATHER DATA ' STATION:' 75',V. YEAR: 1973 VONTH : Oct. DATE: 22
SVAR
HfK
oz |E1 ,
1 90
Vsb
80
JjLJ_LkjL
82
00 i |
01
02
03
1 !
04
05 I
06
07
ca j
09 |
10
11
12
13
14
15
16
17
18
19
20
21
22
23
VAR
99
OZ
max
070
I
1
i
!
1
!
P40JH icy
t)40|H icy
p40 H jcy
p40 H Icy
040 H cy
max
340
340
pso
310
Vsb
60
H jcy
H cy
H cy
(Pcy
i
t Vsb
5vm 70
RH
76
70
j
wd
74 j 66
Ks
84
H OD ! ff 'b Tb
70
j_2 3 i
6
2
2
2 i
2
3
2 4
2|2.
58| 6)3
"^Oi 59 61
70
60
2
68J 60j 6
62
58
63
64
60
56
63 6
64
64
66
66
67
L 58L66
64
71
72
RH
min
56
64
61
60
T
max
68
6
10
8
10
10
10
10
10
12
12
10
6
6
'
5
4
3
4
7
6
5
4
6
9
8
6
5
5
4
3
4
! 1
1.0
l.Oj
1.0|
1.0
27
35
LO. 7
10.0
1
i.o:
1.0)
|46 J6.5
1.0|
.8|
0.6
0.6|
0.8|
i
Ws Wd j Ws
6-12 6-9 i 6-9
043
331
040
1.
\
27
\
107
't
AT
IBT
XH i KH \\ZS lH850lT65oi *P ! iT
!»i 1
32|0.3
49 2.6
_
.
~~
_ 1
i
-~i~
i
d2p
.! i
i
68 [37
80 j
1
50
2.5
\
49
A\
19
'
1
1
74
IBT*
80
J16.0
!
1
49 [17.2
1
MH4
37
KH
49
^%2.6
497
9.0
i
i
i
!
1
Tli5j H650i: T£5d Ap
160|49Q[126
10
SOL
SFO
««
1
It
|
1
AT d2P
15 607
SOL
75
TPH
_BFL_
•
1
PLX
LAX
BUR
LGB
ONT
PHD
PDK
SBD
SG
SA
MAX
71
7C
68
72
69
74
K
66
70
70I
DAG! TRM
!
1
1
i
|
I
j
'
HIM PRECIP
60J
60 1
59
62
52
41
SG
49
58
52
Vsb
'50
Preclp
6-12 Wind Total
.9 cv
70D595
107
-------
<•: I f~
N)
H1
(Jl
DAILY SUVi\
^AR
H\
00
01
02
03
01
05
06
07
03
09
10
11
12
13
14
15
• 16
17
18
19
20
21
22
23
VAR
99
«_
E,
_'__
90
ARY
1
-Vst.
80
DAY: Tue.
OF ,','EA.THER DATA STATION: 75,V YEAR: 1973 MONTH: Oct. DATE: 23
JjLJ^-
| 82
i
1
j
i
1
1 1 1
i i
RH
76
T
71
Wd W5
66
b
4
4
6
L.8»
•N
00
4 r
5
4
5
| 6 4
: i 4
74
|040J H |cy i 73
|060| H icy
(120i |cy
J200
59 i 4
4
5
ff
'b
l_!°
Tb
\
i
60 6j 6 |3.9
72 |60
6
71 J61 j 10
|cy |68 162
_)200[ Icy
200| . cy
150| JPC
fL50
ozj Ei
max { irax
040|900
bso
|PC
10
65 !62 10
60 |64
68
60
•CLRI54
1
48
62
63
63
10
10
10
10
62 10
i 54 (60
Vsb
60.
L50
1
66
i 68
i
!
58
58
i
i
t , Vsb
5vm| 70
140150
RH
mi n
48
T
max
66
10
10
6
6
2
2
2
6 b.9j
8 il.O
8
8
10
10
11
11
9
7
5
3
4
3
4
1.0
0.9!
0.8
0.6
0.4
).l
P.I
D.I
4
Ws
6-12
)68
42
8.0
|999l
Wd J Us
L6-9| 6-9
233
)57
\
42
\
80
't |iTIMBT
50
HH
72
0.51 73 |999
KH
\25 IHS50
L6£
i i i
.
i
\
50
'-\ IBT^jMH^
5
73
999
999|1S.4
HH T1K
ml166
SOL
504
TS5oi AP
-
AT d2P
1 ' |
8.5
8.2
1
,
t
SOL !i SFO
II J
'|
-II
1
1
' 11
ii
I
1 i
1 1
i
1
i
H650! TC5CJ Ap
500
85
20
AT
6
d2P
10
1!
SOL
-
K1C TPH f SFL 1 DAS ' T5!(
~~
==
PLX
LAX
BUR
LGB
ONT
PHD
PON
SBD
S6
SA
I
MAX
69
68
69
71
69
60
69
70
71
—
i
!
. _T ... .
I
i
I
i i
i
- i
HIM ! PRECIP
61
61
60
61
57
59
57
54
58
—
0.10
0.04
0.13
T
T
0.23
0.25
68 70D595
"50-
55
Precip .
6-12 Wi
nd Total 41
148
Day 110 = 0.6 PC
Tenths
-------
CTi
DAILY SUMMARY OF A'EATHER DATA
STATION.: 75W
YE-AR: 1973
MONTH: Oct.
DAY: Wed.
DATE: 24
Vsb
50
51
Precip
6-12 Wind Total 23
111
0
Day HO
SVAR
"X,
OZ
A,
90
Vst j ''x ! Sky ] RH
80 |. 82 J 76
oo ! i i !
01
02
03
on
05
06
07
08
09
10
11
12
13
1»
15
16
17
18
19
20
21
22
23
VAR
99
1 L _
1
[
II • 1
1 1
I
1
T Wd Us
74 86 j 81
H CD
i 2 3 1
2
1 2
| |
2
4
4
5
2 !3
i ! 2
! i !68
J040
i •
OZ
max
170
max
900
060
070
070
070
H iCLRl65
H JCLRJ62
5
52 2 4
53 2
55 2
JCLR)54 (60
JCLRJ40
iCLR|35
6
67 10
71 !10
070| iCLR,33 J74 |10
070
090
120
Vsb
60
070
JCLR|38 |76
CLR38
CLRI40
38
72
70
70
1 44 166
t
5vm
390
50
56
64
62
!
Vsb RH
70 min
040
33
T
max
77
10
10
10
10
10
8
6
2
2
2
2
4 |0.0
3
3
5
0.0
0.0
0.0
ff
t
4 iO.Oi
7 |0.0
8 JO.O
p.0
7
6
0.0
0
0
TlD
4
2
4
4
3
4
b
70
Tb
27 |11.4
6
i
Ws
6-12
038
Wd Ws
6-9 6-9
lllf37
't |6TI ' 1ST
1
I
38J3.3I
HH
KH i\25
72 i
1 i
! I
i
77 38
1 1 '
15.4 19
\
27
i
i
1
\
114
'«,
38
3.S
A\
33
fL2.8
i
l
j
i
76
t
IBT4| HH4
77
38
_
22 |20.2
1
1
H850
TS5oi AP
I
i
i
49 C
—
497
AT d2p SOLijSFO
14D| i
1
["
i
I4.a(
MH Tli5 HS50 TC5d Ap
22 M8|490
14C
543
17
i
. 1
1
563
ii
SOL
158
V11C ! TFH
•
SFL ! OiG TRM
t
I
i
T !
i
1
1
i 1
I
. i
i
MAX MIN PRECIP
PUC
LAX
BUR
LGB
ONT
PHO
PDM
SBD
SG
SA
77
73
82
80
84
74
83
85
54
54
50
52
4b>
34
48
44
82 to
77|50
70D595
= 0 CLR
Tenths
-------
N)
DAILY SUMMARY OF vVEATHER DATA
' SOT I ON: 75W
YE/iR: 1973 MONTH: Oct.
DAY: Thurs.
DATE: 25
\*R
00
01
~~
90 1 80
f-^
i
! 82
~r~i~~
02 ! !
03
0,
05
06
03
09
10
11
:.2
13
14
15
16
17
18
19
20
21
22
23
VAR
99
i
s
1
j
I040J H tLR
|050| H PLR
|oso| H PLR
J040J H CLR
! |030| H CLR
oz
max
170
|025| H PLR
pax
30C
060 H PLR
040
060
Vsb
60
025
H^T D
pIjK
H^T D
\*LjK.
t Vsb
5vm 70
i2i)25
RH
76
T Wd
74 86
~~
!
1
2
2
2
2
Ws
24
3
4
2
2
2 4
2
68
63
60
53 2
4
3
54 2 5
56
2
50 [62 10
40
68
34 (74
10
10
36 |75 110
U42 |73 10
50
44
42
71
71
72
10
12
10
50 166 |10
70
70
60
59
1
•
RH
min
34
T
max
77
10
6
6
2
6
6
3
4
2
5
7
10
8
5
8
6
3
3
4
4
3
5
n
OD | ff | 'b Tb
i
|
1
0.0
70
1 i 1
'
't
^Tl 1ST
|sfcj
i 1 1
! "
o.oi i
o.oi
o.oi
o.oi
0.0|
0.0
0.0
0.0
0
p
1
13.9
I
i 6 iL7.4
|13 ilB.C
Ws { Wd > Ws
6-12, 6-9 1 6-9
D37
iiif>37
I
1
\
1
23
MH
KH
72
\2S IH850
1
J 1
4.884 24
1
8
20
1
i
\
139
| -
t
23
1.2
l.S
. ]
1
13.9
1
|
68
77 i
20
'
Zsso
JL.
AT
"T
^5.8
1
20.4
1
1
*\
48
IBT»| MH4
84
24
MH i T125
20 |139
4y4
d2p SOL l! SFO
1
L__
i
j
i
L5.8
*~
i
_^
H650J TE5Ci AP
491158
538
AT
20
d2P
5
1
i
!
f
II
I'
" !
j|
v,::c
.
TPH
i
1! i
SOL
151
PLX
LAX
BUR
LGB
OUT
PHD
PON
SBD
3FL
DAG
TiEl
1
i
i
i
'
MAX
77
74
79
75
84
77
MIH i PRECIP
55
bb
50
52
48
33
¥1149
83
44
SG \OJL tl
SA
77|55
Vsb
50
53
Prcci p
6-12 Wind Tola)
22
109
Day
110 0 CLR
Tenths
-------
M
H
00
DAILY SUMMARY OF iVEAFHER DATA
STATION:
YEAR: 1973 MONTH: Oct.
DAY:
DATE:
Fri.
26
V
HR\
00
01
02
03
04
05
06
08
09
10
11
12
1.1
lil
IS
16
17
18
19
20
21
22
2?
VAR
99
OZ
90 80 1
i
H
y
82-
RH
75
T ! «a us n,
74 ; 66 I 81
! !
6
6
6
2
00
3 i !
2 i
3
3
2 3
1 i 2
p!5 FH|CLR
p25
H
PC
)30j H [PC
)30
H
020 H
OZ
max
150
Vsb
330 1 H
D30
)30
)40
max
)00
Vsb
60
)20
PC
CLR
72
72
54
2
4
4
52 2 4
64] 53| 2
50
60114
401 64 10
35
71
10
CLRj 31j 75]10
H iCLR,
H|CLR
TJ
CLRl
24
80J10
34i 78
41
46
55
56
60
73
L70
10
10
12
66|10
64
62
i
1
1
t
5vm
L13
bO
Vsb
70
020
RH
mi n
24
ff-in
T
ir.ax
81
10
6
6
2
2
2
4
2
4
4
5
6
8
8
7
ff •
70
!
0.3|
0.7J
0.6
0.6)
0.3i
0.3
0.3
0.2
0.1
pL2
-—
13.8
tLO JL8.1
|28
0.1|
6 0.0
4
4
2
2
3
3
12 pre
Vs Wd
6-12 6-9
037
111
Ws
6-9
040
el p
\
12
L9.4
\
138
't
27
~TI I6T
—
4.2 77
i
MH j KH
72
\25 IH350|T8SO! '> ^T
r ! •
—
1
|
38
i
1
i
14
34
1
2.4
0.6
U»P\
27 J42
6-12 Wind Total
75
85
IBT*
77
MH,
38
22
98
[14.6
h"
^
1
i
i
i
*="il5.4
!
1 1
29?a4J498
MH T125 HS50
29 I146
492
35
Lb.4
i
H|' i
—
T£5d Ap
1
15>36
. Da/ 110 =
Tenth«
AT d'P
17
2
0.3 CLR
SOL ! SFO
i!
.
it
li
li
ii
WC I TrH | BFL
1 !
i
"i
i
n
li
1
jl
I
li
SOL
131
PLX
LAX
BUR
LGB
ONT
DAG! TRrl
T
!
!
!
1
'
HAX HIM
82
72
84
'rt
88
PHD |76
PDN
SBD
S6
SA
86
86
86
55
57
50
b8
50
36
50
46
47
78 |51
PRECIP
70D595
-------
DAILY SUVA ARY OF .VEATHER DATA
HR\J 90
Vsb j Vx ; Sky' | RH
80
82 ; 76
74 j -86 ! ea
00 i j j 2
01
02
03
04
05
1 06
07
08
09
10
It
12
13
14
15
16
17
18
19
20
21
22
2J
VAR
99
1
|
r-
j
1
2
2
2
2
i 2
!
|040
|040
: 52
H iCLRJSO
56 2
3
3
5
5
6
7
55 2 5
H CLRJ36 |60
2
050) H CLRJ26 |66 2
070J ICLRJ20 |78 2
1070 iCLRil7 !84 llO
I
; 14 |91 |14
12 |94
• oz 1 Ei 1 Vs»
max | crax J 60
140
;12
J13
93
92
15 |89
16 184
22
130
|10
3-0
fLO
10
10
78 J10
74 1 .2
j
_
t Vsb RH
Svm 70 min
12
max
95
2
2
2
5
5
2
3
4
6
Q
8
9
DAY: Sat.
STATION: 75rt- YEAR: 1973' MONTH: Oct. DATE: 27
„»_
CD
1
3.0
ff
o i
0
0
0
0
0
0
0
0
3 0
2
3
5
5
5
2 4
1
'b
70~
b
1
sfcj
1 [13.3
j
1
1
173 03.4
1
Ws
6-12
045
1
Wd j Us |fc
6-9i 6-9 »
lllp57
1
\
133
't
^T| j IBT- | HH
I 72
|
16jll.<
HH
\2S
'
85 |999|
j
84
\
16
.
o.e
' .
I
ioi
I
*\
119
•IBT| m,
4. 4
85 I999
L3.3
999^
H65oiT85ol *P
['
AT d2P
1
^P-C-|—
!
50?*°
512
18. c
HH Tli5j HS50 TE5Q
^^OTf80
i
Ap
>73
AT d2p
19
537
SOL ! SFO
K!C TFM i 8FL
L. _ L.
SOL
—
'.
L
DM
PLX
LAX
BUR
LGB
OUT
PHD
RDM
SBD
SS
SA
TKil
f
1
.
1
l
MAX MIN PRECIP
95
91
95
96
94
80
Hi
91
55
55
53
51
55
33
G
51
95 4«
M^G
70D595
Vsb
50
T . 53
rrtn
Precip
6-12 Wind Total 27 Day 110 = 0 CLR
110 Tenths
-------
ro
NJ
o
DAILY SUMMARY
SVAR
MRS.
OZ [ El LVsb [
10 \ 80
00 | |
01 '
02
03
0«
05
_£!_
07
~r
OF .VEATHER DATA STATION: 75W
'!'x Sk, iSH
82
76
T
7H
w r w
d { s
86 | 84
,
H ' 00
— r
-rsre-r r~
16| 5
I ! i 1 16| 4 '
!
j
i
*" ciT r b40
09
10
11
12
1.1
1U
15
16
17
18
19
20
21
22
23
VAR
99
|060
p60
p60
p70
oz
170
Vsb
380 j
p80
)80
380T
I
"
i
E'
JOO
V650b!
040C
16
5
' 1 213
1
H iCLR
H iCLR
H !CLR
H CLR
CLR
JCLR
CLR
35
32
36
26
25
25
25
24
25
JCLRi 24,
CLR
'
26
28
30
34
56
60
66
74
77
79
82
84
85
87
85
81
78
75
j
i !
.
t Vsb
5vm 70
80°4°
I
T .
RH
mm
24
5
T
max
88
6
2| 4
ffj_ 'b -' Tb
L 70_
!
i
|sfcj
2| 4 i .
2j 4
.2!
10
10
3
4
5
1 Il3.7
Ill 121.1
b.oi i
b.ol
0.0
1
1 -
• i
61 6 D.O! 1
6
10
10
12
12
12
14
2
16
2
2
2
50 wi n
5 p.O
6
6
5
6
4
2
4
2
4
5
0.0
0.0
't
YEAR: 1973 \-
~T| '> IDT 1 «H
"
7
r_T_..
1
i
8~. 3t 73~
HH \2S
72
I
CN'TH: Oct.
KScO;TS5oi *P
i
.
~"
I
—
rj
DAY: Hon.
DATE: 29
AT j d2?
1
b.ei498^ 1
23 jl. 6| 84 40l
i I
j 1 i
|12 J21.4| 22
0.0
0.0
3.0
4
I Ws Wd ' Ws
6-12 6-9! 6-9
Pre
°*jin
037
I
1
i ' r
SOL !' SFO V.:iC
i _L
iL 1
i
r
! ~1 • !!'
i j
i r
I |
8.2|82 43j b7.0
1
• 1
\
i
\
137
\
23
L\
90
6-12 Wind Total
i
84
I 1
i •
1
HH4
40
26
105
j
MH Tli5
43
^TQ g
i
L
1
L 1
—
i
HS50; TS50J AP
1 ...
136lt98
H562
0
Day 110 =
Tenths
AT
14
I!
ii
Tf-H f SFl I Di<5 j TRM
i _j
J
=.=,
'""
|
!
I! 1
II
II
1!
d2p
1
0 CLR
SOL
215
i MAX
PLX
LAX
BUR
LGB
ONT
PHD
PDN
S8D
SG
SA
8C
8^
83
84
9d
77
88
89
HIN
57
53
53
52
47
37
54
50
PRECIP
88 1 1 1
70D59S
-------
J A/
DAY: TUB.
DAILY SUMMARY OF WEATHER DATA
T
---
E,
90
Vsb ! "« j Sky
80 | | 82
RH
76
T
. 74
86
8U
STATION: 75W YEAR: 1973 MONTH: Oct. • DATE: 30
II
oo ! j ! i | i 16j .5 j
01
02
03 i
0»J
05 i
06
07
08
09
10
11
12
13
11
15
16
17
18
19
20
21
22
23
VAR
99
OZ
max
170
!
I
i
1 1
|
beo
060
p60
beo
1
38
34
H.TcLRi 3 a
16
2
2
5
3
4 "
2|5
2
59 2
61
61
H |CLR 26J 70
H !CLR
H JCLR
21
191
380! JCLR; 17
380
[LOO
El
rrax
LOO
LOO
Vsb
60
goof60
iCLR
16,
|CLR, 17
jCLRi 181
ICLR! is
18
19
20
78
85
2
2
14
14
12
86j 10
88! 10
86
86
10
10
83| 10
80! 12
78
74
!
t Vsb RH
5vm 70 J nin
080060
16
T
max
88
10
2
2
2
2
16
5
5
5
5
3
4
7
7
9
00 11
I
1
0
D.O]
D.O
D.O
D.Oi
D.O
D.O
7 0.0
9 D.O
7
5
3
3
5
3
3
5
D.O
).o
Us
6-12
048
Wd
6-9
11
'b
70
sfc
1
Tb
15.6
|999!
Ws
6-9
050
\
1
\
156
't
-Tl i 1BT
i
10
6.4
'
\
10
A\
64
76
m
72
KH
48
I
IBT^j m^
76
48
\2!> !H850
|
ISJo
i
44 £8.6
HH T125
44
156
!
->LH
b!2
T650J £?
i
17.0
AT d'P
,_ L
I—
1
!
SOL SFO
1
i
1
17.6 1
H850| TE5oi Ap
507|L70]573
-Ti d*'
16J511
SOL
209
we
TPH
3FL
0.\G
1
1 J
! MAX HIM
PLX
LAX
BUR
LGB
OHT
PHD
PON
SBO
se
SA
87
87
85
91
89
79
59
86
91
93
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6-12 Wind Total 29
120
-------
DAILY SUMMARY OF .VEATHER DATA
STATION: 75W
YE/SR: 1973 MONTH: Oct.
DAY:
DATE :
Wed.
31
^ARI -TE TW"
H^
00
01
02
03
on
05-
05
07
03
09
10
11
12
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14
15
16
17
18
19
20
21
22
23
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max
150
max
213
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050
050
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60
350
H CLR
20
H CLR 26
85 6
89 |10
87 10
86
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140050
81
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10
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34
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19
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89
4
5
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NJ
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DAILY SUMMARY OF ,','EATHER DATA
STATION: 75W
YEAR: 1973. VCNTH:
Nov.
DAY: Thurs.
DATE: 1
YAR
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DAILY SUMMARY OF .VEATHER DATA
STATION: 75W
YEAR: 1973 . "ONTH: NOV.
DAY:
DATE :
Mon.
5
00
01
02
03
04
05
06
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19
20
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DAILY SUMMARY OF ,','EATHER DATA •
STATION: 75W
YEAR: 1973 MONTH: NOV.
DAY:
DATE :
Tues.
6
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70
68
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-------
TECHNICAL REPORT DATA
(Please read Instructions on the reverse before completing)
i. REPORT NO.
2.
EPA/600/4-76-009—
4. TITLE AND SUBTITLE
MOBILE LIDAR STUDY OF THE LOS ANGELES MIXING
LAYER
3. RECIPIENT'S ACCESSION-NO.
5. REPORT DATE
197fi
6. PERFORMING ORGANIZATION CODE
7. AUTHOR(S)
David T. Liu
8. PERFORMING ORGANIZATION REPORT NO.
9. PERFORMING ORGANIZATION NAME AND ADDRESS
System Innovation & Development Corp
707 Silver Spur Road, Suite 202
Rolling Hills Estates, CA 90274
10. PROGRAM ELEMENT NO.
1AA009
11. CONTRACT/GRANT NO.
68-02-1305
12. SPONSORING AGENCY NAME AND ADDRESS
Environmental Sciences Research Laboratory
Office of Research and Development
U.S. Environmental Protection Agency
13. TYPE OF REPORT AND PERIOD COVERED
Final Report
14. SPONSORING AGENCY CODE
EPA-ORD
Par-V
OT71 1
15. SUPPLEMENTARY NOTES
Lidar data tapes are a part of the LARPP data archive.
16. ABSTRACT
This program was conducted in support of the Los Angeles Reactive
Pollutant Program (LARPP), jointly sponsored by the Coordinating
Research Council and the U.S. Environmental Protection Agency. A
mobile Lidar system, mounted in a van, was used to depict the temporal
and spatial variations of the mixing depth over the Los Angeles Basin,
during the LARPP field tests in the fall of 1973. Lidar
profiles are interpreted and compared to vertical temperature and
moisture profiles measured by helicopter and standard meteorological
sounding techniques. Lidar echo anomalies are classified into mixing
layer height or significant levels based on backscatter slop evaluation.
The qualitative aspects of each backscatter signature are used in •
describing the nature and altitude of inversion bases, moisture
layers, stratus and fog layers.
17.
KEY WORDS AND DOCUMENT ANALYSIS
DESCRIPTORS
b.lDENTIFIERS/OPEN ENDED TERMS C. COSATI Field/Group
Boundary Layer
Optical radar
Los Angeles Basin
20D
17H
18. DISTRIBUTION STATEMENT
RELEASE TO PUBLIC
19. SECURITY CLASS (ThisReport)
21. NO. OF PAGES
238
20. SECURITY CLASS (Thispage)
UMCLACOIFIED
22. PRICE
EPA Form 2220-1 (9-73)
228
------- |