Utilizing web-based GIS and SDSS for hydrological land use change impact assessment
2005
Choi, J.Y. | Engel, B.A. | Theller, L. | Harbor, J.
A web-based spatial decision support system (SDSS) was developed to assist with watershed hydrologic and water quality assessment for present and future land uses. The SDSS comprises integrated web-based programs, a hydrologic model, web-GIS, and databases. The SDSS uses web-GIS capability for internet map browsing, real-time web-based watershed delineation, and hydrologic spatial data extraction to prepare input data for the Long-Term Hydrological Impact Assessment (L-THIA) model. An urbanizing watershed in suburban Lafayette, Indiana, was selected to illustrate the SDSS capability and to evaluate land use change impact on direct runoff and nonpoint-source pollution. The SDSS is operational for supporting local communities, regional consulting companies, and other stakeholders at: http://pasture.ecn.purdue.edu/~watergen.
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