Record Display for the EPA National Library Catalog

RECORD NUMBER: 10 OF 161

OLS Field Name OLS Field Data
Main Title AT123D Execution Using the Data Management Supporting Systems AT123DIN and AT123DOUT. Users Guide (Draft).
CORP Author General Software Corp., Landover, MD.;Environmental Protection Agency, Washington, DC. Office of Pesticides and Toxic Substances.
Year Published 1984
Report Number EPA-68-02-3970; EPA/SW/MT-86/007A;
Stock Number PB86-140654
Additional Subjects Water pollution ; Ground water ; Waste disposal ; Data base management systems ; Programming manuals ; Mathematical models ; Sites ; Water flow ; Hydrodynamics ; Computer applications
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB86-140654 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/21/1988
Collation 41p
Abstract
Detailed procedures required to execute AT123D through the use of two data management systems. The report is intended to be a comprehensive guide for users who have no specialized computer knowledge. AT123D is a generalized analytical transient one-, two-, and/or three-dimensional computer model designed for estimating the rate of pollutant (radioactive, chemical, or thermal) transport/transformation in a groundwater system. In the search for closed-form solutions to the partial differential equations describing the groundwater flow and transport phenomena, the application of the Green's function is used to its optimum advantage. As a result, the model has many optional capabilities and accepts a variety of source release patterns and configurations.