1. General Model Information

Name: SOIL PARAmeter Estimator - Software to determine hydraulic properties of unsaturated/saturated soils


Main medium: terrestrial
Main subject: hydrology
Organization level:
Type of model: not specified
Main application:
Keywords: soil, unsaturated, saturated, hydraulic properties


Draper Aden Environmental Modeling, Inc. (DAEM)
2206 South Main Street
VA 24060
Phone: +1 540 961 DAEM (3236)
Fax : +1 540 552 0291
email: DAEM.info@daem.com



Draper Aden Environmental Modeling's SOIL PARAmeter Estimator is based on statistical pore/particle size distribution models and can be used to estimate hydraulic parameters in the van Genuchten constitutive model (Brooks Corey parameters can be estimated from these) for variably saturated soils. SOILPARA allows estimation of the unsaturated zone parameters 1) from retention data and/or conductivity or diffusivity data (Kor D vs. soil water content/ pressure) based on the public domain RETC model by M. Th. van Genuchten et al., 1991) with a WindowsTM native pre-processor that is easy to use and offers graphical output and extensive on screen help, (2) from soil texture (based on the work of Shirazi and Boersma, 1984 and Campbell, 1985) by clicking on a soil texture diagram to return percentage sand, silt and clay within the pre-processor, or (3) by selection of USDA recommended typical parameter values for various texture classes available in the SOILPARA database.

Author of the abstract:

Draper Aden Environmental Modeling, Inc. (DAEM)

II. Technical Information

II.1 Executables:

Operating System(s):

II.2 Source-code:

Programming Language(s):

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

VI. Additional remarks

Last review of this document by: : 1.July 1997 -
Status of the document:
last modified by Tobias Gabele Wed Aug 21 21:44:50 CEST 2002

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