WEPP Model Documentation |
USDA-Water Erosion Prediction Project
Hillslope Profile and Watershed Model Documentation
NSERL Report #10, July 1995
Errata for Model Documentation
Chapter |
Chapter Title |
Adobe Acrobat Format |
Cover Page | cover.pdf | |
Abstract | abstract.pdf | |
Table of Contents | tc.pdf | |
Chapter 1 | Overview of the WEPP Erosion Prediction Model | chap1.pdf |
Chapter 2 | Weather Generator* | chap2.pdf |
Chapter 3 | Winter Hydrology** | chap3.pdf |
Chapter 4 | Hillslope Surface Hydrology | chap4.pdf |
Chapter 5 | Water Balance and Percolation | chap5.pdf |
Chapter 6 | Subsurface Hydrology*** | chap6.pdf |
Chapter 7 | Soil Component | chap7.pdf |
Chapter 8 | Plant Growth Component | chap8.pdf |
Chapter 9 | Residue Decomposition and Management | chap9.pdf |
Chapter 10 | Hydraulics of Overland Flow | chap10.pdf |
Chapter 11 | Hillslope Erosion Component | chap11.pdf |
Chapter 12 | Irrigation Component | chap12.pdf |
Chapter 13 | Watershed Model Channel Hydrology and Erosion Processes**** | chap13.pdf |
Chapter 14 | Surface Impoundment Element Model Description | chap14.pdf |
Appendix | Status of the Computer Code as of July 1995 | append.pdf |
* - A newer version of CLIGEN includes quality control algorithms. The processing is described in the paper Implementing quality control on a random number stream to improve a stochastic weather generator
** - The WEPP winter processing changed significantly in model version 2008.907. A preliminary update describing the changes is available here.
***- The WEPP subsurface hydrology changed in model version 2006.5. A document describing the changes is available here.
**** -The WEPP channel routing was expanded in model version 2012.8. A paper describing the updates is available here. A description of the required chan.inp file is available at: chan.inp format
WEPP Users Summary Updated 2024 (PDF Format) (updated NSERL Report #11 reflecting changes since release, September 2024)
WEPP Users Summary (PDF Format) ( from NSERL Report #11, July 1995, 1.1MByte)
WEPP Users Summary Addendum (PDF Format) (updated 03.06.2000)
WEPP User Requirements (PDF Format) (from NSERL Report #1, 1987, 5.4MByte)
User Requirements (External Site) (HTML, derived from NSERL Report #1 for WEPP95 CD-ROM) September 1987.
A Compendium of Soil Erodibility Data (External Site) (HTML, derived from NSERL Report #3 for WEPP95 CD-ROM) August 1989.