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Title: Water Erosion Prediction Project (WEPP) model status and updates

item Flanagan, Dennis

Submitted to: ASABE Annual International Meeting
Publication Type: Abstract Only
Publication Acceptance Date: 2/18/2016
Publication Date: 7/17/2016
Citation: Flanagan, D.C. 2016. Water Erosion Prediction Project (WEPP) model status and updates [abstract]. In: Proceedings of the American Society of Agricultural and Biological Engineers International (ASABE), July 17-20, 2016, Orlando, Florida. 2016. USB.

Interpretive Summary:

Technical Abstract: This presentation will provide current information on the USDA-ARS Water Erosion Prediction Project (WEPP) model, and its implementation by the USDA-Forest Service (FS), USDA-Natural Resources Conservation Service (NRCS), and other agencies and universities. Most recently, the USDA-NRCS has begun efforts to implement WEPP as new technology for prediction of soil erosion by water in its field offices. Cooperative projects between NRCS and ARS have resulted in an updated climate station database for WEPP, utilizing information from 1974-2013 (40-years) for over 2600 locations in the United States, as well as prototype web-based interfaces for hillslope model applications. Continuing projects with the USDA-FS focus largely on development of targeted web-based GIS watershed interfaces, for erosion model simulations on lands largely managed as forests. Impacts of disturbance, particularly by wildfires, can be simulated, and areas predicted to be most susceptible to erosion and sediment loss may be identified for greater levels of remediation. Other cooperative efforts include work with the Daily Erosion Project led by faculty and staff at Iowa State University, who are utilizing WEPP along with NexRad precipitation data, a detalied LiDAR map of Iowa, and remotely-sensed land management information to generate near real-time estimates of daily soil erosion on a HUC-12 watershed basis in Iowa.