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U.S. Department of Energy
Office of Scientific and Technical Information

Techniques for estimating streamflow characteristics in the Eastern and Interior Coal Provinces of the United States

Technical Report ·
OSTI ID:5516641
Techniques are presented for estimating various streamflow characteristics, such as, peak flows, mean monthly and annual flows, flow durations, and flow volumes, at ungaged sites on unregulated streams in the Eastern Coal region. Streamflow data and basin characteristics for 629 gaging stations were used to develop multiple-linear-regression equations. Separate equations were developed for the Eastern and Interior Coal Provinces. Drainage area is an independent variable common to all equations. Other variables needed, depending on the streamflow characteristic, are mean annual precipitation, mean basin elevation, main channel length, basin storage, main channels slope, and forest cover. A ratio of the observed 50- to 90-percent flow durations was used in the development of relations to estimate low-flow frequencies in the Eastern Coal Province. Relations to estimate low flows in the Interior Coal Province have not been presented because the standard errors were greater than 0.7500 log units and considered to be of poor reliability. 8 refs., 3 figs., 21 tabs.
Research Organization:
Geological Survey, Harrisburg, PA (USA)
OSTI ID:
5516641
Report Number(s):
USGS-OFR-83-948; ON: TI85901707
Country of Publication:
United States
Language:
English