WEPP

The Water Erosion Prediction Project (WEPP) model is a

fisheries, and surface coal mining

Capability and strength

WEPP is applicable for a wide range of geographic and

particle-size classes: primary clay, primary silt, small aggregates, large aggregates, and primary sand, allowing calculation of selective sediment transport

, and enrichment of the fine sediment sizes.

Recent improvement

Over the last decade, researchers have made significant improvements to the WEPP model. These include improved

Windows application (downloadable via: http://www.ars.usda.gov/Research/docs.htm?docid=10621), that allows a user to simulate hillslope profiles and small watersheds and have full control over all model inputs (Figure 1). Additionally, web-based interfaces allow very easy and rapid use of the model while accessing existing soil, climate

, and management databases (Figure 2).

A number of

interfaces

to WEPP (example in Figure 3) are also available:

GeoWEPP^[14]^[15]^[16] – an ArcView or ArcGIS extension that runs in conjunction with the WEPP Windows interface
On-line web-based GIS interface to WEPP using the open source MapServer GIS program^[17]
Iowa Daily Erosion Project^[18]
NetMap^[19]

Forest and rangeland applications

The

interfaces, the Forest Service WEPP (FS WEPP) interfaces, for easier applications by stakeholders in forest and rangeland management (forest engineers, rangeland scientists, federal and state regulatory personnel) and the general public.^[20] The interfaces can be readily accessed and run through the internet (http://forest.moscowfsl.wsu.edu/fswepp/), and do not require any in-depth understanding of the hydrology, hydraulic and erosion principles

embedded in the WEPP model. The FS WEPP interfaces include:

Cross Drain - to predict sediment yield from a road segment across a buffer
Rock:Clime - to create and download a modified WEPP climate file
WEPP:Road - to predict erosion from a forest road segment
WEPP:Road Batch - to predict erosion from multiple forest road segments
Disturbed WEPP - to predict erosion from rangeland and forest disturbances (wildfire, harvest operations)
Tahoe Basin Sediment Model (under construction) - to predict runoff and erosion for the Lake Tahoe Basin
WEPP FuME (Fuel Management) - to predict erosion from fuel management practices
ERMiT (Erosion Risk Management Tool) - to predict the probability of sediment delivery with various mitigation treatments in each of five years following wildfire

References

^ Laflen, J.M., L.J. Lane, and G.R. Foster. 1991. WEPP—a next generation of erosion prediction technology. Journal of Soil Water Conservation 46(1): 34–38.
^ Laflen, J.M., W.J. Elliot, D.C. Flanagan, C.R. Meyer, and M.A. Nearing. 1997. WEPP predicting water erosion using a process-based model. Journal of Soil Water Conservation 52(2): 96–102.
^ Flanagan, D.C., J.E. Gilley and T.G. Franti. 2007. Water Erosion Prediction Project (WEPP): development history, model capabilities, and future enhancements. Transactions of the ASABE 50(5):1603-1612.
^ Flanagan, D.C., and M.A. Nearing (eds.). 1995. USDA-Water Erosion Prediction Project (WEPP) Hillslope Profile and Watershed Model Documentation. NSERL Report No. 10, National Soil Erosion Research Laboratory, USDA-Agricultural Research Service, West Lafayette, Indiana.
^ Flanagan, D.C., and S.J. Livingston, (eds.) 1995. WEPP User Summary. NSERL Rep. No. 11. West Lafayette, IN: USDA ARS NSERL.
^ Flanagan, D.C., J.C. Ascough II, M.A. Nearing and J.M. Laflen. 2001. Chapter 7: The Water Erosion Prediction Project (WEPP) Model. In (R.S. Harmon and W.W. Doe III, eds.): Landscape Erosion and Evolution Modeling. Kluwer Academic / Plenum Publishers, New York, NY. 145-199
^ Nicks, A.D., L.J. Lane, and G.A. Gander. 1995. Weather generator. In: Flanagan, D.C. and M.A. Nearing (eds.), USDA-Water Erosion Prediction Project Hillslope Profile and Watershed Model Documentation. NSERL Rep. 10. West Lafayette, IN: USDA ARS NSERL.
^ Daly, C. 2009. PRISM Group. Available at: http://www.prism.oregonstate.edu/.
^ Wu, J.Q., and S. Dun. 1998. Upgrading the WEPP watershed version for forest conditions. Final Report to USDA Forest Service, Rocky Mountain Research Station, Moscow, ID.
^ Wu, J.Q., S. Dun, W.J. Elliot, and D.C. Flanagan. 2004. Modification and testing of the evapotranspiration (ET) routines in the WEPP model. Presented at the 2004 ASAE Annual International Meeting, August 1−4, 2004, Ottawa, Canada. St. Joseph, MI: ASAE.
^ Wu, J.Q., S. Dun, W.J. Elliot, and D.C. Flanagan. 2004. Subsurface water flow routines in the WEPP model: Modification and validation. Presented at the 2004 ASAE Annual International Meeting, August 1−4, 2004, Ottawa, Canada. St. Joseph, MI: ASAE.
^ Dun, S., J.Q. Wu, W.J. Elliot, P.R. Robichaud, D.C. Flanagan, J.R. Frankenberger, R.E. Brown and A.D. Xu. 2009. Adapting the Water Erosion Prediction Project (WEPP) Model for forest applications. Journal of Hydrology 366(1−4): 45–54.
^ Singh, P., J.Q. Wu, D.K. McCool, S. Dun, C-H. Lin, and J.R. Morse. 2009. Winter hydrologic and erosion processes in the U.S. Palouse region: field experimentation and WEPP simulation. Vadose Zone Journal 8(2): 426–436.
^ Cochrane, T.A., and D.C. Flanagan. 1999. Assessing water erosion in small watersheds using WEPP with GIS and digital elevation models. Journal of Soil Water Conservation 54(4): 678–685.
^ Renschler, C.S., D.C. Flanagan, B.A. Engel and J.R. Frankenberger. 2002. GeoWEPP – the geospatial interface to the Water Erosion Prediction Project. ASAE Paper No. 02-2171. 10 pp.
^ Renschler, C.S. 2003. Designing geo-spatial interfaces to scale process models: the GeoWEPP approach. Hydrological Processes 17(5): 1005–1017.
^ Flanagan, D. C., J. R. Frankenberger and B. A. Engel. 2004. Web-based GIS application of the WEPP model. Paper No. 042024. Presented at the 2004 ASAE Annual International Meeting, August 1−4, 2004, Ottawa, Canada. St. Joseph, MI: ASAE. 12 p.
^ Cruse, R.M., D.C. Flanagan, J.R. Frankenberger, B.K. Gelder, D. Herzmann, D. James, W. Krajewski, M. Kraszewski, J.M. Laflen, and D. Todey. 2006. Daily estimates of rainfall, water runoff, and soil erosion in Iowa. Journal of Soil Water Conservation. 61(4): 191–199.
^ Benda, L., D. Miller, K. Andras, P. Bigelow, G. Reeves, and D. Michael. 2007. NetMap: a new tool in support of watershed science and resource management. Forest Science 53(2): 206–219.
^ Elliot, W.J. 2004. WEPP internet interfaces for forest erosion prediction. Journal of the American Water Resources Association 40(2): 299–309.

External links

WEPP - Official site - National Soil Erosion Research Laboratory (NSERL), USDA Agricultural Research Service
WEPP Web Interfaces - NSERL, USDA Agricultural Research Service
Forest Service WEPP Interfaces -
USDA Forest Service Rocky Mountain Research Station

GeoWEPP -
SUNY Buffalo
NetMap - Earth Systems Institute

[1] Laflen, J.M., L.J. Lane, and G.R. Foster. 1991. WEPP—a next generation of erosion prediction technology. Journal of Soil Water Conservation 46(1): 34–38.

[2] Laflen, J.M., W.J. Elliot, D.C. Flanagan, C.R. Meyer, and M.A. Nearing. 1997. WEPP predicting water erosion using a process-based model. Journal of Soil Water Conservation 52(2): 96–102.

[3] Flanagan, D.C., J.E. Gilley and T.G. Franti. 2007. Water Erosion Prediction Project (WEPP): development history, model capabilities, and future enhancements. Transactions of the ASABE 50(5):1603-1612.

[4] Flanagan, D.C., and M.A. Nearing (eds.). 1995. USDA-Water Erosion Prediction Project (WEPP) Hillslope Profile and Watershed Model Documentation. NSERL Report No. 10, National Soil Erosion Research Laboratory, USDA-Agricultural Research Service, West Lafayette, Indiana.

[5] Flanagan, D.C., and S.J. Livingston, (eds.) 1995. WEPP User Summary. NSERL Rep. No. 11. West Lafayette, IN: USDA ARS NSERL.

[6] Flanagan, D.C., J.C. Ascough II, M.A. Nearing and J.M. Laflen. 2001. Chapter 7: The Water Erosion Prediction Project (WEPP) Model. In (R.S. Harmon and W.W. Doe III, eds.): Landscape Erosion and Evolution Modeling. Kluwer Academic / Plenum Publishers, New York, NY. 145-199

[7] Nicks, A.D., L.J. Lane, and G.A. Gander. 1995. Weather generator. In: Flanagan, D.C. and M.A. Nearing (eds.), USDA-Water Erosion Prediction Project Hillslope Profile and Watershed Model Documentation. NSERL Rep. 10. West Lafayette, IN: USDA ARS NSERL.

[8] Daly, C. 2009. PRISM Group. Available at: http://www.prism.oregonstate.edu/.

[9] Wu, J.Q., and S. Dun. 1998. Upgrading the WEPP watershed version for forest conditions. Final Report to USDA Forest Service, Rocky Mountain Research Station, Moscow, ID.

[10] Wu, J.Q., S. Dun, W.J. Elliot, and D.C. Flanagan. 2004. Modification and testing of the evapotranspiration (ET) routines in the WEPP model. Presented at the 2004 ASAE Annual International Meeting, August 1−4, 2004, Ottawa, Canada. St. Joseph, MI: ASAE.

[11] Wu, J.Q., S. Dun, W.J. Elliot, and D.C. Flanagan. 2004. Subsurface water flow routines in the WEPP model: Modification and validation. Presented at the 2004 ASAE Annual International Meeting, August 1−4, 2004, Ottawa, Canada. St. Joseph, MI: ASAE.

[12] Dun, S., J.Q. Wu, W.J. Elliot, P.R. Robichaud, D.C. Flanagan, J.R. Frankenberger, R.E. Brown and A.D. Xu. 2009. Adapting the Water Erosion Prediction Project (WEPP) Model for forest applications. Journal of Hydrology 366(1−4): 45–54.

[13] Singh, P., J.Q. Wu, D.K. McCool, S. Dun, C-H. Lin, and J.R. Morse. 2009. Winter hydrologic and erosion processes in the U.S. Palouse region: field experimentation and WEPP simulation. Vadose Zone Journal 8(2): 426–436.

[14] Cochrane, T.A., and D.C. Flanagan. 1999. Assessing water erosion in small watersheds using WEPP with GIS and digital elevation models. Journal of Soil Water Conservation 54(4): 678–685.

[15] Renschler, C.S., D.C. Flanagan, B.A. Engel and J.R. Frankenberger. 2002. GeoWEPP – the geospatial interface to the Water Erosion Prediction Project. ASAE Paper No. 02-2171. 10 pp.

[16] Renschler, C.S. 2003. Designing geo-spatial interfaces to scale process models: the GeoWEPP approach. Hydrological Processes 17(5): 1005–1017.

[17] Flanagan, D. C., J. R. Frankenberger and B. A. Engel. 2004. Web-based GIS application of the WEPP model. Paper No. 042024. Presented at the 2004 ASAE Annual International Meeting, August 1−4, 2004, Ottawa, Canada. St. Joseph, MI: ASAE. 12 p.

[18] Cruse, R.M., D.C. Flanagan, J.R. Frankenberger, B.K. Gelder, D. Herzmann, D. James, W. Krajewski, M. Kraszewski, J.M. Laflen, and D. Todey. 2006. Daily estimates of rainfall, water runoff, and soil erosion in Iowa. Journal of Soil Water Conservation. 61(4): 191–199.

[19] Benda, L., D. Miller, K. Andras, P. Bigelow, G. Reeves, and D. Michael. 2007. NetMap: a new tool in support of watershed science and resource management. Forest Science 53(2): 206–219.

[20] Elliot, W.J. 2004. WEPP internet interfaces for forest erosion prediction. Journal of the American Water Resources Association 40(2): 299–309.

[14]

[15]

[16]

[17]

[18]

[19]

[20]

Capability and strength

Recent improvement

Forest and rangeland applications

See also

References

External links