Record Display for the EPA National Library Catalog


Main Title UNSODA unsaturated soil hydraulic database : user's manual /
Author Leij, F. J. ; Alves, W. J. ; van Genuchten, M. T. ; Williams, J. R. ;
Other Authors
Author Title of a Work
Leij, Feike J.
CORP Author National Risk Management Research Lab., Ada, OK. Subsurface Protection and Remediation Div. ;Agricultural Research Service, Riverside, CA. Salinity Lab.
Publisher National Risk Management Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
Year Published 1996
Report Number EPA/600/R-96/0095; IAG-DW12933934; DW12933934; EPA/600/R-96/095
Stock Number PB97-149496
OCLC Number 35855912
Subjects Zone of aeration--United States--Databases ; Water--Pollution--United States--Databases ; Soils--Environmental aspects--United States--Databases
Additional Subjects Soil mechanics ; Hydraulic properties ; User manuals(Computer program) ; Unsaturated flow ; Subsurface flow ; Vadose water ; Zone of aeration ; Soil water movement ; Retention ; Hydraulic conductivity ; Soil density ; Particle size ; Organic matter ; Bulk density ; Soil physical properties ; Chemical compounds ; Path of pollutants ; Environmental transport ; Land pollution ; Data collection ; Data processing ; Computerized simulation ; Mathematical models ; C programming language ; Fortran ; UNSODA computer program
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EHAM  EPA/600-R-96-095 Region 1 Library/Boston,MA 11/08/1996
EJBD  EPA 600-R-96-095 c.1 Headquarters Library/Washington,DC 05/07/2013
EJDD  EPA/600/R-96/095 Env Science Center Library/Ft Meade,MD 04/11/1997
ELBD ARCHIVE EPA 600-R-96-095 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ELBD  EPA 600-R-96-095 AWBERC Library/Cincinnati,OH 05/23/1997
EMBD  EPA/600/R-96/095 NRMRL/GWERD Library/Ada,OK 11/08/1996
ESAD  EPA 600-R-96-095 2 copies Region 10 Library/Seattle,WA 06/02/2016
NTIS  PB97-149496 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Edition Version 1.0.
Collation ix, 103 p. : ill. ; 28 cm.
This report contains general documentation and serves as a user manual of the UNSODA program. UNSODA is a database of unsaturated soil hydraulic properties (water retention, hydraulic conductivity, and soil water diffusivity), basic soil properties (particle-size distribution, bulk density, organic matter content, etc.), and additional information regarding the soil and the experimental procedures. The program can be used to (1) store and edit data, (2) search for data sets based on user-defined query specifications, (3) write the contents of selected data sets to an output device, and (4) describe the unsaturated hydraulic data with closed-form analytical expressions. This report gives a broad overview of major features operations of UNSODA and documents the main tables. The data collection process is outlined and each input variable is discussed. UNSODA allows the analytic description of unsaturated hydraulic properties by means of parametric models; six default models are for this purpose included in the program. The program module for optimization of hydraulic model parameters is written in FORTRAN. Users can easily add additional hydraulic models. Three examples are included to show the reader step-by-step how UNSODA can be used to (1) enter and edit data, (2) search and report data, and (3) model hydraulic data.
Also distributed to depository libraries in microfiche. Shipping list no.: 97-0036-P. "August 1996." "IAG-DW12933934." "EPA/600/4-96/095." Includes bibliographical references (p. 85-86).