United States
Environmental Protection
Agency
Atmospheric Sciences
Research Laboratory
Research Triangle Park NC 27711
Research and Development
EPA/600/S8-86/012 May 1986
oEPA Project Summary
TUPOS-P—A Program for
Analyzing Hourly and Partial
Concentration Files Produced
by TUPOS
D. Bruce Turner, Thomas Chico, and Joseph A. Catalano
TUPOS-P is a postprocessor program
for analyzing concentration files produc-
ed by the air quality dispersion model
TUPOS. The program reads either hourly
concentration or hourly partial concentra-
tion files and provides the following
output:
• Hourly concentration summaries,
• Averaging period concentration sum-
maries, and
• High-five concentration tables for five
averaging times (1-hr, 3-hr, 8-hr,
24-hr, and an averaging time selected
by the user).
If the concentration file being read con-
sists of partial contributions, the user may
request hourly contribution summaries
and averaging period contribution sum-
maries for up to 25 significant sources.
Much cf the printed output is optionally
available so that unneeded output volume
is avoided.
This Project Summary was developed
by EPA's Atmospheric Sciences Research
Laboratory, Research Triangle Park, NC, to
announce key findings of the research
project that is fully documented in a sep-
arated report of the same title (see Project
Report ordering information at back).
Introduction
TUPOS-P is a data handling postproces-
sor adapted from the summary calcula-
tions of MPTER. The program reads either
hourly concentration or partial concentra-
tion files created by the air quality disper-
sion model TUPOS and provides the fol-
lowing optional output:
• Hourly concentration summaries,
• Averaging period concentration sum-
maries, and
• High-five concentration tables for five
averaging times (1-hr, 3-hr, 8-hr,
24-hr, and an averaging time selected
by the user).
The hourly concentration file has a
single concentration (that due to all
sources) for each receptor for each hour.
The partial concentration file contains the
concentration that results from each
source (partial concentration) for each
receptor for each hour. If the concentra-
tion file being read consists of partial con-
tributions, the user may request hourly
contribution summaries and averaging
period contribution summaries for up to
25 significant sources.
TUPOS-P was designed to maximize
user control. For instance, the number of
hours required to have a valid 3-hr, 8-hr,
24-hr, or user-specified averaging period
in the high-five tables is given by the user.
In addition much of the printed output is
optionally available so that unneeded out-
put volume is avoided. Although TUPOS-P
is specific to concentration files created
by the dispersion model TUPOS, it can be
easily modified to handle concentration
files generated by other air quality models.
Discussion
Proper execution of TUPOS-P requires
summary period information, averaging
period information, print options, and a list
of significant sources if applicable.
Summary period information includes:
• Starting point for summary (year,
Julian day, hour),
• Number of hours in the summary,
• Concentration file indicator: 0 for
hourly concentrations; 1 for hourly
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partial concentrations, and
• Number of significant sources to be
considered for the contribution
summaries.
Averaging period information includes the
following:
• Number of averaging periods to be
summarized,
• Number of hours in the averaging
period,
• Additional averaging time for the
high-five table,
• Number of hours required to have a
valid 3-hr, 8-hr, and 24-hr period, and
• Number of hours required to have a
valid user-specified averaging period.
Much of the printed output is optional
so that unneeded output can be omitted.
For instance, the following output can be
included or omitted according to the user's
needs:
• Hourly summaries,
• Hourly partial contribution
summaries,
• Averaging period summaries,
• Averaging period partial contribution
summaries, and
• High-five tables.
The user supplies the list of sources to be
included in the contribution summaries up
to a maximum of 25 significant sources
or can use any subset of the list supplied
in the partial concentration file with the
sources ordered by the significance criteria
in TUPOS.
The primary input requirement for the
program is, of course, the file containing
hourly or partial concentrations. In order
to use TUPOS-P without significant
modification, the file must be generated
by the dispersion model, TUPOS.
User control and user friendliness were
kept in mind during the design of
TUPOS-P. Input data errors or incon-
sistencies result in an appropriate error
messaga
A modular approach was adopted in the
TUPOS-P design. Thus, although TUPOS-
P is specific to concentration files created
by TUPOS, it can be easily modified to
handle concentration files generated by
other air quality models.
Conclusions and Recommendations
The philosophy adopted in constructing
the model TUPOS and the postprocessor
TUPOS-P is to separate the two functions
of dispersion model (calculating hourly pollu-
tant concentrations) and analysis of the
resulting concentrations (averaging over
time periods of interest and ranking concen-
trations over a period of record). This latter
"bookkeeping" function is primarily depen-
dent upon the exact form of the air quality
standards. By this partitioning, only that pro-
cessor affected by either modeling im-
provements or by changes to air quality
standards need be rewritten.
Thomas Chico and Joseph Catalano are with Aerocomp, Inc.. Costa Mesa. CA
92626; the EPA author Bruce Turner (also the EPA Project Officer, see below) is
with the Atmospheric Sciences Research Laboratory, Research Triangle Park,
NC 27711.
The complete report, entitled "TUPOS-P—A Program for Analyzing Hourly and
Partial Concentration Files Produced by TUPOS," (Order No. PB 86-181
328/AS; Cost: $16.95, subject to change) will be available only from:
National Technical Information Service
5285 Port Royal Road
Springfield. VA 22161
Telephone: 703-487-4650
The EPA Project Officer can be contacted at:
Atmospheric Sciences Research Laboratory
U.S. Environmental Protection Agency
Research Triangle Park, NC 27711
United States
Environmental Protection
Agency
Center for Environmental Research
Information
Cincinnati OH 45268
Official Business
Penalty for Private Use $300
EPA/600/S8-86/012
0000329 PS
U S ENVIR PROTECTION AGENCY
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