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 This information is obtained from gauge station data and made dimensionless by dividing the mean daily discharge data by bankfull discharge. Bankfull discharge data is divided into all of the ranges of mean daily discharge and is plotted as in Figure 117 and Figure 118 (PDF, 13 kb, 1 p.) as an example of the application for Weminuche Creek. The user must develop dimensionless flow-duration curves from gauging stations that represent a similar hydro-physiographic region similar to the impaired stream being assessed.
Figure 117. Dimensionless flow-duration curve for streamflow in the Upper Salmon River area (Emmett, 1975) |
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