The Soil Conservation Service-curve number (SCS-CN) method is analytically derived and its basis in the Mockus method analyzed. A modification and a general form of the SCS-CN method are proposed. Using data from five watersheds, the existing SCS-CN method, the proposed modification, and the Mockus method are compared. For these data the modified version is found to be more accurate than the current version.
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Hawkins et al. (2001) studied this question.
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