Estimating Selected Streamflow Statistics Representative of 1930–2002 in West Virginia

Scientific Investigations Report 2008-5105
Prepared in cooperation with the West Virginia Department of Environmental Protection, Division of Water and Waste Management



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.

Suggested Citation

Wiley, J.B., 2008, Estimating selected streamflow statistics representative of 1930–2002 in West Virginia: (ver. 1.1, July 2021): U.S. Geological Survey Scientific Investigations Report 2008–5105, 24 p.,

ISSN: 2328-0328 (online)

ISSN: 2328-031X (print)

Study Area

Publication type Report
Publication Subtype USGS Numbered Series
Title Estimating selected streamflow statistics representative of 1930–2002 in West Virginia
Series title Scientific Investigations Report
Series number 2008-5105
ISBN 9781411322608
DOI 10.3133/sir20085105
Edition Version 1.1: July 2021; Version 1.0: 2008
Year Published 2008
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Virginia and West Virginia Water Science Center
Description Report: viii, 24 p.; Version History; HTML Document
Country United States
State West Virginia
Online Only (Y/N) N
Additional Online Files (Y/N) N
Google Analytic Metrics Metrics page
Additional publication details