Water Resources Management

, Volume 18, Issue 6, pp 567–589 | Cite as

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

  • S. K. Mishra
  • M. K. Jain
  • V. P. Singh


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.

Key words

curve number method soil conservation service antecedent moisture rainfall-runoff model 


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Copyright information

© Kluwer Academic Publishers 2004

Authors and Affiliations

  1. 1.National Institute of HydrologyRoorkeeIndia
  2. 2.Department of Civil and Environmental EngineeringLouisiana State UniversityBaton RougeU.S.A.

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