Sediment data sources and estimated annual suspended-sediment loads of rivers and streams in Colorado

Elliott, J. G.; DeFeyter, K. L.

Abstract:

Sources of sediment data collected by several government agencies through water year 1984 are summarized for Colorado. The U.S. Geological Survey has collected suspended-sediment data at 243 sites; these data are stored in the U.S. Geological Survey ‘s water data storage and retrieval system. The U.S. Forest Service has collected suspended-sediment and bedload data at an additional 225 sites, and most of these data are stored in the U.S. Environmental Protection Agency ‘s water-quality-control information system. Additional unpublished sediment data are in the possession of the collecting entities. Annual suspended-sediment loads were computed for 133 U.S. Geological Survey sediment-data-collection sites using the daily mean water-discharge/sediment-transport-curve method. Sediment-transport curves were derived for each site by one of three techniques: (1) Least-squares linear regression of all pairs of suspended-sediment and corresponding water-discharge data, (2) least-squares linear regression of data sets subdivided on the basis of hydrograph season; and (3) graphical fit to a logarithm-logarithm plot of data. The curve-fitting technique used for each site depended on site-specific characteristics. Sediment-data sources and estimates of annual loads of suspended, bed, and total sediment from several other reports also are summarized. (USGS)

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USGS Numbered Series

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26958

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Elliott, J. G.; DeFeyter, K. L.

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ENGLISH

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vii, 148 p. :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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86-4344

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Sediment data sources and estimated annual suspended-sediment loads of rivers and streams in Colorado; 1986; WRI; 86-4344; Elliott, J. G.; DeFeyter, K. L.

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1986

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citation/reference

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Sediment data sources and estimated annual suspended-sediment loads of rivers and streams in Colorado; 1986; WRI; 86-4344; Elliott, J. G.; DeFeyter, K. L.