A rain duration and modified AMC-dependent SCS-CN procedure for long duration rainfall-runoff events Academic Article

abstract

• This paper presents a rain duration-dependent procedure based on the popular Soil Conservation Service Curve Number (SCS-CN) methodology for computation of direct surface runoff from long duration rains. Curve numbers are derived from long-term daily rainfall-runoff data, and antecedent moisture condition (AMC) related with antecedent duration. Analysis of data from five Indian (large, in terms of area) watersheds reveals the calculated curve numbers to decrease with the considered duration, showing the existence of a characteristic value of minimum CN or maximum initial abstraction to occur in a watershed for a pre-selected AMC. The testing of the proposed procedure on the separate (measured) rainfall-runoff event data sets from the same watersheds suggests satisfactory workability of the method. Springer Science+Business Media B.V. 2007.

authors

• Singh, Vijay

published proceedings

• WATER RESOURCES MANAGEMENT

author list (cited authors)

• Mishra, S. K., Pandey, R. P., Jain, M. K., & Singh, V. P.

citation count

• 63

complete list of authors

• Mishra, SK||Pandey, RP||Jain, MK||Singh, Vijay P

publication date

• July 2008

publisher

• Springer Nature  Publisher

keywords

• Antecedent Moisture
• Initial Abstraction
• Rain Duration
• Rainfall Runoff
• Scs Curve Number

Digital Object Identifier (DOI)

• 10.1007/s11269-007-9196-6

start page

• 861

end page

• 876

volume

• 22

issue

• 7

URL

• http%3A%2F%2Fdx.doi.org%2F10.1007%2Fs11269-007-9196-6