Enhanced runoff curve number model incorporating storm duration and a Nonlinear I-a-S relation Academic Article uri icon


  • Incorporating the storm duration and a nonlinear relation for initial abstraction (Ia), this paper presents an enhanced version of the Soil Conservation Service curve number-based Mishra-Singh model. The proposed version is compared with existing formulations using a large set of storm rainfall-runoff events derived from the water database of the United States. The results of the paired t-test of related samples and standard error of estimate (Se) statistic comparison of split sampling-based calibration and validation and simulation on full data set show that the proposed version performs far better than all other existing versions. 2006 ASCE.

published proceedings


author list (cited authors)

  • Jain, M. K., Mishra, S. K., Babu, P. S., Venugopal, K., & Singh, V. P.

citation count

  • 48

complete list of authors

  • Jain, MK||Mishra, SK||Babu, P Suresh||Venugopal, K||Singh, VP

publication date

  • November 2006