Submitted to: International Soil Conservation Organization Conference Abstracts
Publication Type: Proceedings
Publication Acceptance Date: 6/1/2004
Publication Date: 7/4/2004
Citation: Flanagan, D.C., Frankenberger, J.R., Renschler, C.S., Engel, B.A. 2004. Development of web-based gis interfaces for application of the wepp model. International Soil Conservation Organization Conference Abstracts. Paper No. 419.
Technical Abstract: The Water Erosion Prediction Project (WEPP) model is a process-based, distributed parameter, continuous simulation erosion prediction tool. Work in the past 5 years has included linkage of WEPP with Geographic Information Systems (GIS) and utilization of digital elevation data for automatic creation of topographic inputs. This paper describes creation of Web-browser based GIS interfaces that allow similar functions as stand-alone products (such as GeoWEPP under ArcView). The Web GIS software allows users to specify an area of interest to model with WEPP, and then a Digital Elevation Model (DEM) for the area is sent to topographic parameterization software to delineate watersheds, channels and hillslopes. All computations to process the DEM are conducted on the server side, and then images of the delineated watershed and hillslopes are passed to the client's screen. WEPP model simulations of representative hillslope profiles and channels, and/or all flowpaths in the watershed, are also conducted on the server. Then the predicted soil erosion results in graphical format are sent as images to the client machine. Subsequent model simulations using different land management practices can help to show the impact of use of conservation practices on runoff, soil erosion and sediment yields.