Geohydrology, aqueous geochemistry, and thermal regime of the Soda Lakes and Upsal Hogback geothermal systems, Churchill County, Nevada

Olmsted, F. H.; Welch, A. H.; Van Denburgh, A. S.; Ingebritsen, S. E.

Abstract:

A flow-routing model of the upper Schoharie Creek basin, New York, was developed and used to simulate high flows at the inlet of the Blenheim-Gilboa Reservoir. The flows from Schoharie Creek at Prattsville, the primary source of flow data in the basin, and tributary flows from the six minor basins downstream, are combined and routed along the 9.7 mile reach of the Schoharie Creek between Prattsville and the reservoir inlet. Data from five historic floods were used for model calibration and four for verification. The accuracy of the model as measured by the difference between simulated and observed total flow volumes, is within 14 percent. Results indicate that inflows to the Blenheim-Gilboa Reservoir can be predicted approximately 2 hours in advance. One of the historical floods was chosen for additional model testing to assess a hypothetical real-time model application. Total flow-volume errors ranged from 30.2 percent to -9.2 percent. Alternative methods of obtaining hydrologic data for model input are presented for use in the event that standard forms of hydrologic data are unavailable. (USGS)

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USGS Numbered Series

ProdID:

25531

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Olmsted, F. H.; Welch, A. H.; Van Denburgh, A. S.; Ingebritsen, S. E.

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ENGLISH

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xiv, 166 p. :ill., maps ;28 cm.

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U.S. Geological Survey,

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Water-Resources Investigations Report

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WRI

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84-4054

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Geohydrology, aqueous geochemistry, and thermal regime of the Soda Lakes and Upsal Hogback geothermal systems, Churchill County, Nevada; 1984; WRI; 84-4054; Olmsted, F. H.; Welch, A. H.; Van Denburgh, A. S.; Ingebritsen, S. E.