Estimating selected streamflow statistics representative of 1930–2002 in West Virginia

Jeffrey B. Wiley

doi:10.3133/sir20085105

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Estimating selected streamflow statistics representative of 1930–2002 in West Virginia

Jeffrey B. Wiley

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Abstract

Regional equations and procedures were developed for estimating 1-, 3-, 7-, 14-, and 30-day 2-year; 1-, 3-, 7-, 14-, and 30-day 5-year; and 1-, 3-, 7-, 14-, and 30-day 10-year hydrologically based low-flow frequency values for unregulated streams in West Virginia. Regional equations and procedures also were developed for estimating the 1-day, 3-year and 4-day, 3-year biologically based low-flow frequency values; the U.S. Environmental Protection Agency harmonic-mean flows; and the 10-, 25-, 50-, 75-, and 90-percent flow-duration values. Regional equations were developed using ordinary least-squares regression using statistics from 117 U.S. Geological Survey continuous streamflow-gaging stations as dependent variables and basin characteristics as independent variables. Equations for three regions in West Virginia - North, South-Central, and Eastern Panhandle - were determined. Drainage area, precipitation, and longitude of the basin centroid are significant independent variables in one or more of the equations. Estimating procedures are presented for determining statistics at a gaging station, a partial-record station, and an ungaged location. Examples of some estimating procedures are presented.

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Source-reported bounding extent: 37° to 41° latitude; -83° to -77° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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Jeffrey B. Wiley. 2008. Estimating selected streamflow statistics representative of 1930–2002 in West Virginia. https://doi.org/10.3133/sir20085105

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