Graduate Project

 

Surface-water contaminant routing using a digital stream information system Public Deposited

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https://ir.library.oregonstate.edu/concern/graduate_projects/b2773w419

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  • The U.S. Geological Survey is proposing to redesign its site-specific water-use data base into a topologic site-specific water-use data base that depicts water use as an integral part of the hydrologic cycle. The new data base is to be compatible with the theory of geographic information systems. By placing water use and other hydrologic data into a geographic information system framework, a stream information system can be developed. A stream information system allows a user to combine the spatial and topologic attributes of a basin with stream characteristics such as discharge, gradient, sinuosity, length, time-of-travel, and water use to develop models that simulate discharge, time-of-travel, supply and demand, and solute transport. An application of the stream information system is explored for the Umpqua River of southwestern Oregon. Here, most users rely on surface-water supplies, but these supplies are occasionally contaminated by tractor-trailer spills or by overflows of sewage treatment plants. Time-of-travel data are integrated into the stream information system to predict the time required for a contaminant to travel from a spill-site to a downstream user at a known value of discharge. Key Words: Contaminant routing, geographic information systems, water-use data base, time-of-travel
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