Sadeghi, S., Razavi, S., Mahdavi, M. (2009). Role of rainfall characteristics on runoff prediction accuracy of ‎SCS model. , 1(2), 78-86.
Seyed Hamid Reza Sadeghi; Seyedeh Laleh Razavi; Mohammad Mahdavi. "Role of rainfall characteristics on runoff prediction accuracy of ‎SCS model". , 1, 2, 2009, 78-86.
Sadeghi, S., Razavi, S., Mahdavi, M. (2009). 'Role of rainfall characteristics on runoff prediction accuracy of ‎SCS model', , 1(2), pp. 78-86.
Sadeghi, S., Razavi, S., Mahdavi, M. Role of rainfall characteristics on runoff prediction accuracy of ‎SCS model. , 2009; 1(2): 78-86.

Role of rainfall characteristics on runoff prediction accuracy of ‎SCS model

مهندسی و مدیریت آبخیز
Article 2, Volume 1, Issue 2, July 2009, Pages 78-86    PDF (527.42 K)
Document Type: Research Paper
Authors
Seyed Hamid Reza Sadeghi* 1; Seyedeh Laleh Razavi2; Mohammad Mahdavi3
1Associate Professor, Faculty of Natural Resources, Tarbiat Modares University, Iran
2Former MSc Student, Faculty of Natural Resources, Tarbiat Modares University, Iran
3Professor, Faculty of Natural Resources, Tehran University, Iran
Abstract
Many different runoff prediction methods are being used among which SCS model has been applied throughout the globe. It is therefore very important to evaluate the circumstances and input specifications under which such models could be applied. The present study was conducted to investigate the role of rainfall main characteristics on accuracy of SCS model in runoff prediction for Kasilian and Darjazin watersheds. For this purpose, the simultaneous rainfall-runoff data were selected and the storm runoff was estimated using determining rainfall characteristic, providing Curve Number map and calibrating the model. In order to determine the effects of rainfall characteristics on model output, the standardized values of regression coefficient (β) of the best fitted multiple regression, developed between rainfall circumstances and maximum storage index coefficient, were determined. The results of the study showed the depth, maximum rainfall in concentration time, maximum 30 minutes intensity, 2nd quartile and 1st quartile have the highest rate of effectiveness on model output respectively.
Keywords
curve number; Darjazin; Initial abstraction; Kasilian; surface runoff
Statistics
Article View: 1,019
PDF Download: 496


counter
Journal management system. designed by sinaweb