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DISC Model: Computer software for analyzing tension disc infiltrometer data by parameter estimation
Entry ID: USDA_ARS_DISC

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Summary
Abstract: DISC is a computer software package for analyzing Tension Disc Infiltrometer
data by parameter estimation. The software package consists of the simplified
HYDRUS2 computer program, and an interactive graphics-based user interface. The
DISC code numerically solves the Richards' equation for saturated-unsaturated
water flow. Flow occurs in a three-dimensional region exhibiting radial
symmetry about ... View entire text
Related URL
Description: DISC Model.
Service Citation
Originators: Simunek, J., and M. Th. van Genuchten
Title: DISC Model: Computer software for analyzing tension disc infiltrometer data by parameter estimation
Release_Date: 1984
Provider: USDA Agricultural Research Service
Edition: 1.0
URL: http://www.ars.usda.gov/Services/docs.htm?docid=8917
Service Keywords
DATA ANALYSIS AND VISUALIZATION >STATISTICAL APPLICATIONS Parameter Definition
DATA ANALYSIS AND VISUALIZATION >VISUALIZATION/IMAGE PROCESSING Parameter Definition
MODELS >COMPONENT PROCESS MODELS Parameter Definition

Access Constraints Intel Pentium processor, 16 Mb RAM, hard disk with at least 20 Mb free disk
space, VGA graphics (SVGA with 256 colors recommended), MS Windows 95 or
higher.

The program and manual are available upon request from:

Walter Russell
USDA-ARS U.S. Salinity Laboratory
450 W Big Springs Road
Riverside, CA 92507-4617

Tel: 951-369-4850
Fax: 951-342-4964
wrussell@ussl.ars.usda.gov
Ancillary Keywords
Models
Tension Disc Infiltrometer
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Service Provider
USDA/ARS/USSL > U.S. Salinity Laboratory, Agricultural Research Service, U. S. Department of Agriculture Supplemental Info
Service Organization URL: http://www.ars.usda.gov/pwa/riverside/gebjsl

Service Provider Personnel
Name: WALTER RUSSELL
Phone: 909-369-4850
Fax: 909-342-4964
Email: wrussell at ussl.ars.usda.gov
Contact Address:
U.S. Salinity Laboratory
USDA, ARS
450 West Big Springs Road
City: Riverside
Province or State: CA
Postal Code: 92507-4617
Country: USA
Personnel
TYLER B. STEVENS
Role: SERF AUTHOR
Phone: (301) 614-6898
Fax: 301-614-5268
Email: Tyler.B.Stevens at nasa.gov
Contact Address:
NASA Goddard Space Flight Center
Global Change Master Directory
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA
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Publications/References
Simunek, J., and M. Th. van Genuchten, The DISC computer software for analyzing
tension disc infiltrometer data by parameter estimation. Versions 1.0, Research
Report No. 145, U.S. Salinity Laboratory, USDA-ARS, Riverside, California,
34pp., 2000.
Creation and Review Dates
SERF Creation Date: 2007-03-07
SERF Last Revision Date: 2007-03-08
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