Low-flow characteristics of small streams in proposed Public Law 566 basins
Open-File Report 78-664
Prepared in cooperation with Wisconsin Department Natural Resources
- Stephen J. Field
Low-flow characteristics of Wisconsin streams in basins considered for work under Public Law 566 are presented in this report. The low-flow characteristics presented are the annual minimum 1-day mean flow below which the flow will fall on the average of once in 2 years (Q7,2) and the annual minimum 7-day mean flow below which the flow will fall on the average of once in 10 years (Q7,10).
The low-flow characteristics are presented for 278 project sites in 32 basins considered for work under Public Law 566. They were determined by correlating base-flow measurements at the project site to the concurrent daily mean flow at continuous-record gaging stations in the area. The Q7,2 and Q7,10 discharges determined by a frequency analysis at the continuous-record gaging stations were used to estimate the Q7,2 an Q7,10 at the project sites.
The accuracy of the estimated low-flow characteristics is evaluated according to the type and amount of data available used. The statewide average of the accuracy determined by the standard error of estimate for the 10-year low flow (SE7,10)> based on three base-flow measurements, is 45 percent but differs within the State.
Additional publication details
- Publication type:
- Publication Subtype:
- USGS Numbered Series
- Low-flow characteristics of small streams in proposed Public Law 566 basins
- Series title:
- Open-File Report
- Series number:
- Year Published:
- U.S. Geological Survey,
- Contributing office(s):
- Wisconsin Water Science Center
- iv, 32 p.
- United States
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