WEPP Software

Water Erosion Prediction Project

The Water Erosion Prediction Project (WEPP) model is a process-based, distributed parameter, continuous simulation, erosion prediction model for use on personal computers running Windows 95/98/NT/2000/XP. The current model version (v2006.5) available for download is applicable to hillslope erosion processes (sheet and rill erosion), as well as simulation of the hydrologic and erosion processes on small watersheds. Included in the download package is the WEPP model (version 2006.5), WEPP Windows interface (May 2006), CLIGEN climate generators (versions 4.3 and 5.22564), documentation and example data.

Documentation

Overview of Soil Erosion
WEPP Model v2006.5 Release Notes
WEPP Model Documentation
WEPP Publications Bibliography List
 Agricultural Research magazine article on WEPP
WEPP Windows Frequently Asked Questions
WEPP Windows Interface Tutorial

Downloads

Download WEPP for Windows (May 2006)

The download was updated on September 5, 2006 to correct a problem with the uninstaller. Click here for details on how to uninstall if you downloaded the software between May and September 5, 2006.

 

Soil Data

Soil parameter inputs for WEPP are based on 1992 SOILS-5 data. The install package includes soil archive files for each state. These archives can be used with the WEPP Windows Interface by selecting the Tools menu and then Soil Archive Program.

 

 

Climate Data

Example CLIGEN breakpoint data file
Breakpoint Climate Generator
CLIGEN  Information
Using Climate data in WEPP Windows

Cligen parameter files for about 2600 stations in the US are included in the install package.

Management Data

Example managements for agriculture, rangeland and forest are included in the install package.

Upcoming WEPP Workshops

Related Software

A Web browser interface to WEPP model. Run WEPP simulations without having to download the software, simulations are run on servers at the NSERL.  

Forest Service WEPP interfaces. The US Forest Service has developed specific web based interfaces for western forest and logging activities.

A prototype GIS interface is available for evaluation. This is an ESRI ArcView extension that uses DEM data to derive topography inputs for WEPP.

DOS Interface file builders for WEPP. This software is no longer being updated but is available for download.

WEPP Validation Data Sets. For use with WEPP model (without interface), for hillslope and watershed.

Neither the U.S. Government nor any agency thereof nor any of their employees make any warranty, expressed or implied, or assume any legal responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed herein or represent that its use would not infringe privately owned rights. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

Comments or suggestions regarding WEPP: e-mail wepp@ecn.purdue.edu

Updated June 5, 2006