Evaluation of the SCS-CN-Based Model Incorporating Antecedent Moisture

Using a large set of rainfall-runoff data from 234 small to large watersheds from USA, this paper evaluates the modified version of the [Mishra, S. K. and Singh, V. P., 2002a, ‘SCS-CN-based hydrologic simulation package’, in V. P. Singh and D. K. Frevert (eds), Mathematical Models in Small Watershed Hydrology, Water Resources Publications, Chap. 13, pp. 391–464] (MS) model which is based on the Soil Conservation Service Curve Number (SCS-CN) methodology and incorporates the antecedent moisture in direct surface runoff computations. Comparison with the existing SCS-CN method using the t-test and the ranking-based grading shows that the modified MS model performs far better than the existing SCS-CN model.

[1]  Tammo S. Steenhuis,et al.  SCS Runoff Equation Revisited for Variable-Source Runoff Areas , 1995 .

[2]  P. K. Bhunya,et al.  Discussion of "Approach to confidence interval estimation for curve numbers" by Richard H. McCuen , 2003 .

[3]  Richard H. Hawkins,et al.  Asymptotic determination of runoff curve numbers from data , 1993 .

[4]  Allen T. Hjelmfelt,et al.  Runoff Probability, Storm Depth, and Curve Numbers , 1985 .

[5]  Richard H. McCuen,et al.  A guide to hydrologic analysis using SCS methods , 1982 .

[6]  Richard H. McCuen,et al.  Approach to Confidence Interval Estimation for Curve Numbers , 2002 .

[7]  Surendra Kumar Mishra,et al.  SCS-CN method. Part II: Analytical treatment , 2003 .

[8]  V. Singh,et al.  Soil Conservation Service Curve Number (SCS-CN) Methodology , 2003 .

[9]  John R. Williams,et al.  Water Yield Model Using SCS Curve Numbers , 1976 .

[10]  Vijay P. Singh,et al.  Another Look at SCS-CN Method , 2001 .

[11]  Vijay P. Singh,et al.  Partitioning Analog for Metal Elements in Urban Rainfall-Runoff Overland Flow Using the Soil Conservation Service Curve Number Concept , 2004 .

[12]  Surendra Kumar Mishra,et al.  SCS-CN method. Part 1: Derivation of SCS-CN -based models , 2002 .

[13]  V. Singh,et al.  SCS-CN-based hydrologic simulation package. , 2002 .

[14]  S. K. Mishra,et al.  Validity and extension of the SCS‐CN method for computing infiltration and rainfall‐excess rates , 2004 .

[15]  V. Ponce,et al.  Runoff Curve Number: Has It Reached Maturity? , 1996 .

[16]  R. Hawkins.  Runoff Curve Numbers with Varying Site Moisture , 1978 .

[17]  A. Hjelmfelt.  Investigation of Curve Number Procedure , 1991 .

[18]  James V. Bonta,et al.  Determination of Watershed Curve Number Using Derived Distributions , 1997 .

[19]  Allen T. Hjelmfelt,et al.  Empirical Investigation of Curve Number Technique , 1980 .

[20]  Vijay P. Singh,et al.  Long‐term hydrological simulation based on the Soil Conservation Service curve number , 2004 .