Record Display for the EPA National Library Catalog

RECORD NUMBER: 41 OF 43

OLS Field Name OLS Field Data
Main Title User's guide for the advanced statistical trajectory regional air pollution (ASTRAP) model /
Author Shannon, Jack D.,
Other Authors
Author Title of a Work
Clark, Terry L.
Ching, J. K. S.,
Publisher Atmospheric Sciences Research Laboratory, Office of Research and Development, Environmental Protection Agency, Center for Environmental Research Information
Year Published 1985
Report Number EPA/600-S8-85-016
OCLC Number 899240705
Subjects Air--Pollution--Mathematical models.
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=2000TJ08.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EJBD ARCHIVE EPA 600-S8-85-016 In Binder Headquarters Library/Washington,DC 11/06/2017
EJBD  EPA 600-S8-85-016 In Binder Headquarters Library/Washington,DC 10/03/2018
Collation 3 pages ; 28 cm.
Notes
"Terry L. Clark and Jason K. S. Ching are the EPA Project Officers" "Sept. 1985" "EPA/600-S8-85-016."
Contents Notes
The Advanced Statistical Trajectory Regional Air Pollution (ASTRAP) model simulates long-range, long-term transport and deposition of air pollutants, primarily oxides of sulfur and nitrogen. The ASTRAP model is designed to combine ease of exercise with an appropriate detail of physical processes for assessment applications related to acid deposition. The theoretical basis and computational structure of the ASTRAP model are described. major simplifications and assumptions incorporated in the model are discussed. The data requirements for ASTRAP simulations are monthly to seasonal time series of transport wind and precipitation analyses and an emissions inventory. ASTRAP consists of three programs: HORZ, VERT and CONCDEP. The source code is in standard FORTRAN, while the JCL is appropriate for an IBM 3033 mainframe computer. Horizontal dispersion and wet deposition statistics are calculated in HORZ. The process of turbulent vertical diffusion within the mixed layer, leakage to the free atmosphere, chemical transformation and dry deposition are calculated in VERT. The CONCDEP program combines the statistics produced by HORZ and VERT with an emissions inventory to calculate primary and secondary pollutant surface concentrations along with wet and dry depositions.