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OK, so what is a rating curve?

April 26, 2017curve Ok rating

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OK, so what is a rating curve?

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A rating curve is a graph of depth (usually in feet) versus discharge (usually cfs). It is created through application of a mathematical formula in the case of weirs and engineered channels, or through a process of channel surveying and mathematical modeling for natural channels. In either case, the channel slope, area and roughness determine the capability of a channel to transmit water.