| Main Title |
The RETC code for quantifying the hydraulic functions of unsaturated soils / |
| Author |
Van Genuchten, M. Th., ;
Leij, F. J. ;
Yates, S. R.
|
| Other Authors |
|
| CORP Author |
Agricultural Research Service, Riverside, CA. Salinity Lab.;Robert S. Kerr Environmental Research Lab., Ada, OK. |
| Publisher |
Robert S. Kerr Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, |
| Year Published |
1992 |
| Report Number |
EPA/600/2-91/065; DW12933934; PB92119668 |
| Stock Number |
PB92-119668 |
| OCLC Number |
25645186 |
| Subjects |
Soil moisture--Mathematical models ;
Soil permeability--Mathematical models ;
Zone of aeration
|
| Additional Subjects |
Hydraulic conductivity ;
Vadose water ;
Soil water ;
Soil properties ;
Computerized simulation ;
Documentation ;
Retention ;
Unsaturated flow ;
Environmental transport ;
Path of pollutants ;
Land pollution ;
Chemical compounds ;
Water management
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EHAM |
S594V36x, 1992 |
|
Region 1 Library/Boston,MA |
04/29/2016 |
| EJBD |
EPA 600/2-91/065 |
c.1-2 |
Headquarters Library/Washington,DC |
04/17/1992 |
| ELBD ARCHIVE |
EPA 600-2-91-065 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| EMBD |
EPA/600/2-91/065 |
|
NRMRL/GWERD Library/Ada,OK |
06/26/1992 |
| ERAD |
EPA 600/2-91-065 |
|
Region 9 Library/San Francisco,CA |
05/01/1992 |
| ESAD |
EPA 600-2-91-065 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
| NTIS |
PB92-119668 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
x, 85 pages : illustrations ; 28 cm |
| Abstract |
The EPA uses numerous mathematical models to predict and analyze the movement of water and dissolved contaminants in the saturated and unsaturated zones of the subsurface environment. The usefulness of these models, and the accuracy with which model predictions can be made, depends greatly on the ability to reliably characterize the hydraulic properties of the unsaturated zone. The report discusses several theoretical models which may be used to quantify the unsaturated soil hydraulic properties involving the soil water retention and hydraulic conductivity functions. The report includes a computer program which predicts, among other things, the unsaturated hydraulic conductivity from independently measured soil water retention data. Several examples illustrate the applicability of the model to different types of hydraulic data. The information in the report should be of interest to all those concerned with the development of improved methods for predicting or managing water and contaminant transport in partly saturated soils. |
| Notes |
Research report. "U.S. Salinity Laboratory, U.S. Department of Agriculture." Shipping list no.: 92-168-P. "December 1991." "EPA/600/2-91/065." Includes bibliographical references (pages 52-55). Contract Number: DW12933934. |
| Place Published |
Ada, Okla. |
| Supplementary Notes |
For system on diskette, see PB92-501329. Sponsored by Robert S. Kerr Environmental Research Lab., Ada, OK. |
| Corporate Au Added Ent |
Robert S. Kerr Environmental Research Laboratory.; Salinity Laboratory (U.S.) |
| PUB Date Free Form |
1992 |
| Ti Tra Differently |
RETention Curve. |
| BIB Level |
m |
| Medium |
unmediated |
| Content |
text |
| Carrier |
volume |
| Cataloging Source |
OCLC/T |
| OCLC Time Stamp |
20160419143642 |
| Language |
eng |
| SUDOCS Number |
EP 1.23/2:600/2-91/065 |
| Origin |
OCLC |
| Type |
MERGE |
| OCLC Rec Leader |
01911cam 2200505Ia 45020 |
