Wind Erosion Prediction System (WEPS)

The USDA-Agricultural Research Services, in cooperation with the USDA-Natural Resources Conservation Service, the USDI-Bureau of Land Management, and the Environmental Protection Agency, has developed technology to help predict wind erosion. The Wind Erosion Prediction System (WEPS) is a daily simulation model which outputs average soil loss and deposition values for selected areas and periods of time. It is applicable to just one field, or can be applied to a few adjacent fields.

WEPS consists of an instructional program, a user-interface program, seven submodels, and an output section. WEPS allows users to input their own data files or use previously prepared data base files. It also possesses the ability to provide users with individual values for suspension, saltation, and surface creep.

WEPS' seven submodels, each based on the fundamental processes which occur in the field, are used to predict and give estimates for wind erosion.

They consist of:

  1. Weather
  2. Crop Growth
  3. Decomposition
  4. Hydrology
  5. Soil
  6. Erosion
  7. Tillage

WEPS powerful technology and widespread availability should enable conservationists and policy makers to get a better handle on the serious problem of wind erosion.

More information on WEPS and wind erosion can be found at USDA-ARS Wind Erosion Research Laboratory in Manhattan Kansas.

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