SCS-CN based time-distributed sediment yield model Academic Article

abstract

• A sediment yield model is developed to estimate the temporal rates of sediment yield from rainfall events on natural watersheds. The model utilizes the SCS-CN based infiltration model for computation of rainfall-excess rate, and the SCS-CN-inspired proportionality concept for computation of sediment-excess. For computation of sedimentographs, the sediment-excess is routed to the watershed outlet using a single linear reservoir technique. Analytical development of the model shows the ratio of the potential maximum erosion (A) to the potential maximum retention (S) of the SCS-CN method is constant for a watershed. The model is calibrated and validated on a number of events using the data of seven watersheds from India and the USA. Representative values of the A/S ratio computed for the watersheds from calibration are used for the validation of the model. The encouraging results of the proposed simple four parameter model exhibit its potential in field application. 2008 Elsevier B.V. All rights reserved.

authors

• Singh, Vijay

published proceedings

• JOURNAL OF HYDROLOGY

author list (cited authors)

• Tyagi, J. V., Mishra, S. K., Singh, R., & Singh, V. P.

citation count

• 46

complete list of authors

• Tyagi, JV||Mishra, SK||Singh, Ranvir||Singh, VP

publication date

• May 2008

publisher

• Elsevier  Publisher

published in

• Journal of Hydrology  Journal

keywords

• A/s Ratio
• Curve Number
• Potential Maximum Erosion
• Scs-cn Method
• Sediment-excess
• Sedimentograph

Digital Object Identifier (DOI)

• 10.1016/j.jhydrol.2008.01.025

start page

• 388

end page

• 403

volume

• 352

issue

• 3-4

URL

• http%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.jhydrol.2008.01.025