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Water Erosion Prediction Project Operational Computer Program

by Norman Miller, USDA, United States,
Owen Lee, USDA, United States,



Document Type: Proceeding Paper

Part of: National Water Conference

Abstract:

The Water Erosion Prediction Project (WEPP) is a physically-based model to improve on-site erosion prediction techniques. It is designed to replace the Universal Soil Loss Equation (USLE) and provide other capabilities. There are three versions within WEPP: overland flow profile, watershed, and grid. The computer program for the overland flow profile which computes sheet and rill erosion, will be ready for field testing in September 1989. SCS will also develop computer programs for the watershed and grid versions, making possible computation of concentrated flow erosion in addition to sheet and rill erosion and allowing determination of spatial variability of erosion and deposition within a field. Additional aspects of the subject are discussed.

Subject Headings: Erosion | Computer models | Watersheds | Simulation models | Sediment transport | Overland flow | Mathematical models

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