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A GIS Application to Hydrology

by Uzair M. Shamsi, Chester Environmental, Pittsburgh, United States,



Document Type: Proceeding Paper

Part of: Engineering Hydrology

Abstract:

This paper illustrates an application of Geographic Information System (GIS) in estimating input parameters for Penn State Runoff Model (PSRM), a watershed rainfall-runoff simulation model. The model is used to simulate runoff hydrographs for various durations and frequencies. Hydrographs are manipulated to create peak flow presentation and release rate tables which are used to develop a watershed storm water management plan. The use of GIS eliminates the subjectivity of the modeler in estimating certain model input parameters. The application is illustrated for the Bull Run watershed, an 8.4 square miles rural catchment, located in Union County, Pennsylvania.

Subject Headings: Geographic information systems | Information systems | Simulation models | Watersheds | Runoff | Hydrologic models | Computer models | Pennsylvania | United States

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