Abstract: Background, general instructions, and examples are given for determining runoff curve numbers (CN) from small watershed event rainfall and direct runoff data sets. The technique matches rank‐ordered (i.e., sorted) rainfall ...

Abstract: A continuous spatially distributed model of watershed runoff for storage dominated watersheds is presented. The model is consistent with previously reported concepts and mathematics of infiltration activated watersheds. ...

Abstract: The conceptual and empirical foundations of the runoff curve number method are reviewed. The method is a conceptual model of hydrologic abstraction of storm rainfall. Its objective is to estimate direct runoff depth from ...

Abstract: To estimate mean annual water yield on ungauged watersheds, regional regression equations have been developed that are a function of upstream area, precipitation, and temperature, and are commonly used. In this study, the ...

Abstract: Using existing antecedent moisture condition (AMC) Curve Number relationships, a general expression of rainfall‐runoff is developed for AMC I and AMC III. The probability distribution of event runoff exceeding zero is found ...

Abstract: We develop an approximation of the Green‐Ampt infiltration equation by using the first two terms of a Taylor‐series expansion of the equation. The resulting approximate equation is in the form of the Philip's equation, ...