1. General Model Information

Name: Chemical Adsorption and Degradation In Land


Main medium: terrestrial
Main subject: biogeochemistry, hydrology
Organization level: ecosystem
Type of model: partial differential equations
Main application:
Keywords: unsaturated flow, solute transport


Emerson, C.J., B. Thomas, R.J. Luxmoore, and D.M. Hetrick
Oak Ridge National Laboratories
Oak Ridge, TN 37831


Emerson, C.J., B. Thomas, R.J. Luxmoore, and D.M. Hetrick


CADIL (Chemical Adsorption and Degradation In Land) is a moisture and chemical species mass balance model which simulates chemical transport through soils. It includes the processes of deposition, infiltration, adsorption (Freundlich isotherm) and first-order (bio-)chemical degradation of chemicals. It also simulates the effect of soil temperature on chemical degradation. Chemical transport in soil water may be either vertical or lateral. Both macropore and matrix flows of chemicals in soil water are modeled. CADIL couples to AGTEHM, which in turn calculates soil water transport through the bulk matrix and soil macro-pores. AGTEHM simulates interception, throughfall, infiltration, soil evaporation, plant transpiration, and surface runoff.

II. Technical Information

II.1 Executables:

Operating System(s):

II.2 Source-code:

Programming Language(s): Fortran
public domain (please contact the Authors)

II.3 Manuals:

II.4 Data:

III. Mathematical Information

III.1 Mathematics

III.2 Quantities

III.2.1 Input

III.2.2 Output

IV. References

V. Further information in the World-Wide-Web

CSMoS Online Model Database

VI. Additional remarks

The CADIL model is executed as a submodel of the AGTEHM model. It was developed from SCEHM, an earlier soil chemical model developed by Begovich and Jackson (1975).
Last review of this document by: T. Gabele: Dec 19 1997
Status of the document:
last modified by Tobias Gabele Wed Aug 21 21:44:40 CEST 2002

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