SESOIL. Code System Calculate One-Dimensional Vertical Transport Unsaturated Soil Zone

Technical Report · Mon Aug 01 00:00:00 EDT 1994

OSTI ID:371308

Hetrick, D M ^[1]; Scott, D J ^[2]

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1. SESOIL Consultant, Knoxville, TN (United States)
2. Environmental Graphics Inc., Pewaukee, WI (United States)

SESOIL, as an integrated screening-level soil compartment model, is designed to simultaneously model water transport, sediment transport, and pollutant fate. SESOIL is a one-dimensional vertical transport model for the unsaturated soil zone. Only one compound at a time can be considered. The model is based on mass balance and equilibrium partitioning of the chemical between different phases (dissolved, sorbed, vapor, and pure). The SESOIL model was designed to perform long-term simulations of chemical transport and transformations in the soil and uses theoretically derived equations to represent water transport, sediment transport on the land surface, pollutant transformation, and migration of the pollutant to the atmosphere and groundwater. Climatic data, compartment geometry, and soil and chemical property data are the major components used in the equations. SESOIL was developed as a screening-level model, utilizing less soil, chemical, and meteorological values as input than most other similar models. Output of SESOIL includes time-varying pollutant concentrations at various soil depths and pollutant loss from the unsaturated zone in terms of surface runoff, percolation to the groundwater, volatilization, and degradation. The February 1995 release corrects an error that caused the code to fail when average monthly air temperature was -10C and includes an improved iteration procedure for the mass balance equations in the model. PLEASE NOTE: The RISKPRO information management software (see OTHER PROG/OPER SYS INFO) was used by the developers of the New SESOIL User`s Guide in their study and revisions of SESOIL. Using RISKPRO in conjunction with SESOIL is an option, and it may provide the easiest way to use SESOIL. The other option, use of SESOIL in stand-alone mode, has been tested and used. The stand-alone option is covered in `Instructions for Running Stand-Alone SESOIL Code`, and in `A Seasonal Soil Compartment Model`.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: Environmental Protection Agency, Washington, DC (United States)
• OSTI ID: 371308
• Report Number(s): ESTSC-000436IBMPC02
• Resource Relation: Other Information: DN: The RM Fortran compiler, Version 3.10.01, was used to create the executables included in package. The RISKPRO software referenced in the New SESOIL User`s Guide and in the Instructions for Running Stand-Alone Code is not provided. RISKPRO is a proprietary system developed, supported, and available from General Sciences Corporation, 6100 Chevy Chase Drive, Laurel, MD 20707, Tel: [phone]. Approximate price: $800-$1000.; PBD: 1 Aug 1994
• Country of Publication: United States
• Language: English

Related Subjects

99 MATHEMATICS
COMPUTERS
INFORMATION SCIENCE
MANAGEMENT
LAW
MISCELLANEOUS
54 ENVIRONMENTAL SCIENCES
S CODES
SOILS
ENVIRONMENTAL TRANSPORT
COMPUTER PROGRAM DOCUMENTATION
ACID RAIN
PESTICIDES
LONG-RANGE TRANSPORT
WATER QUALITY
POLLUTANTS
WATERSHEDS
WASTE DISPOSAL
GROUND WATER
SEDIMENTS
LEACHING
ENVIRONMENTAL EFFECTS