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Application Of A Geographical Information System To Estimate The Magnitude And Frequency Of Floods In The Sandy And Clackamas River Basins, Oregon, Dorie Lynn Brownell
Application Of A Geographical Information System To Estimate The Magnitude And Frequency Of Floods In The Sandy And Clackamas River Basins, Oregon, Dorie Lynn Brownell
Dissertations and Theses
A geographical information system (GIS) was used to develop a regression model designed to predict flood magnitudes in the Sandy and Clackamas river basins in Oregon. Manual methods of data assembly, input, storage, manipulation and analysis traditionally used to estimate basin characteristics were replaced with automated techniques using GIS-based computer hardware and software components. Separate GIS data layers representing (1) stream gage locations, (2) drainage basin boundaries, (3) hydrography, (4) water bodies, (5) precipitation, (6) landuse/land cover, (7) elevation and (8) soils were created and stored in a GIS data base. Several GIS computer programs were written to automate the …