United States Environmental Protection Agency Atmospheric Sciences Research Laboratory Research Triangle Park NC 27711 Research and Development EPA/600/S3-86i/059 Jan. 1987 v°/EPA Project Summary The Hanford 67-Series: Atmospheric Field Diffusion Measurements, Micrometeorological and Tracer Data Archive, Set 003 Documentation Report J. G. Droppo, Jr. An archive for micrometeorological and tracer dispersion data has been de- veloped by Battelle, Pacific Northwest Laboratories for the U.S. Environmen- tal Protection Agency. The archive is designed to make the results of exten- sive field tests readily accessible to EPA for model testing, development, and verification efforts. This report provides documentation for one volume of data, the Hanford 67- Series Atmospheric Dispersion Experi- ments. The entries in this documenta- tion report are as follows: data set fact summary, narrative description of ex- periment and data, special information, references, description of archive data files, contacts (names, addresses, and phone numbers) and standard experi- ment summary table. This Project Summary was devel- oped by EPA's Atmospheric Sciences Research Laboratory, Research Triangle Park, NC, to announce key findings of the research project that is fully docu- mented in a separate report of the same title (see Project Report ordering infor- mation at back). Introduction The Meteorology and Assessment Di- vision of the U.S. Environmental Protec- tion Agency's (EPA's) Atmospheric Sci- ences Research Laboratory has initiated a project to develop and establish an archive of original experimental data and documentation for use by atmos- pheric dispersion and boundary layer researchers. The archive of data sets will be useful for evaluating and im- proving dispersion models, ensuring the retention of these data for the fu- ture, and making the data more readily available to the research community. This report documents the microme- teorological and tracer (M&T) data archive for the Hanford 67-Series at- mospheric field dispersion experiments and provides listings of the data set doc- umentation entries, which are also pro- vided in ASCII text files on the data archive tape. The archive includes both documen- tation and data. A data set documenta- tion report is prepared for each archived data set. The archive is contained in five or more files on magnetic tape. These files consist of header file, three documenta- tion files, and one or more data files. The data are entered into the archive in as close to original form as possible to maintain a clear link with original records. The archived data are con- .tained within a well-defined structure called a data map. The data map allows data to be entered in original formats, while providing the user with a machine-readable pathway for access- ing the diverse data formats. ------- Hanford 67-Series of Experiments The Hanford-67 Series experiments were conducted on what is now the U.S. Department of Energy's Hanford site. Hanford is located in a 40-km-wide basin in southeastern Washington State (latitude 46 deg. 34'N, longitude 119 deg. 36'W, elevation 733 feet). The site is bordered on the north and east by the Columbia River and on the west and south by the Rattlesnake Hills and the Yakima River. The climate of the region is semiarid. The experiments were con- ducted on the relatively flat Hanford Dis- persion Grid at an elevation of roughly 200 m above sea level. The vegetation on the grid is composed primarily of steppe grasses and sagebrush. A typical roughness length for the area is 3 cm. Four different tracers were released during the Hanford-67 Series. The par- ticulate tracers used in the Hanford-67 Series were zinc sulfide fluorescent particulate 2210, fluorescein, and rhodamine B. The fourth tracer was krypton-85, an inert gas whose radioac- tivity could be monitored. To determine concentrations, the three particulate tracers were collected on membrane filters for subsequent laboratory analysis. Krypton-85 was monitored using Geiger-Muller tubes. During the period 1959 to 1973, more than 300 atmospheric field diffusion ex- periments were conducted at the Han- ford reservation near Richland, Wash- ington. This volume documents 103 of the more recent of these experiments. Both diffusion and current meteorologi- cal data are presented in user-oriented format. The reported data include data for both unstable and stable atmospheric conditions. Tracer concentrations nor- malized by dividing by the release rate are provided on a series of progres- sively more distant surface arcs. In some tests, vertical profiles of normal- ized tracer concentrations are given. A table for each set of concentration data contains the run name, tracer name, date, start time and stop time, release height, arc distance, and wind speed at (or near) the release height. Following the concentration tables, meteorologi- cal data are given. These meteorologi- cal tables contain vertical profiles of temperature, wind speed, wind direc- tion, and wind direction standard devia- tion over the time of release for each test. J. G. Droppo. Jr., is with Battelle, Pacific Northwest Laboratory, Richland. WA 993S2. John S. Irwln is the EPA Project Officer (see below). The complete report, entitled "The Hanford 67-Series: Atmospheric Field Diffusion Measurements, Micrometeorological Tracer Data Archive, Set 003 Documentation Report," I Order No. PB 87-111 332/A S; Cost: $13.95, 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, NC27711 United States Environmental Protection Agency Center (or Environmental Research Information Cincinnati OH 45268 Official Business Penalty for Private Use $300 EPA/600/S3-86/059 ------- |