Moatamednia, Mahboobeh, Malekian, Arash, Nohegar, Ahmad, Karimi, Kamal, Tavasoli, Ahad (2015). Performance of Different Models for Curve Number Estimation (Case study: Bar Watershed in Khorasan Razavi Province, Iran). , 3(3), 1031-1049.
Mahboobeh Moatamednia; Arash Malekian; Ahmad Nohegar; Kamal Karimi; Ahad Tavasoli. "Performance of Different Models for Curve Number Estimation (Case study: Bar Watershed in Khorasan Razavi Province, Iran)". , 3, 3, 2015, 1031-1049.
Moatamednia, Mahboobeh, Malekian, Arash, Nohegar, Ahmad, Karimi, Kamal, Tavasoli, Ahad (2015). 'Performance of Different Models for Curve Number Estimation (Case study: Bar Watershed in Khorasan Razavi Province, Iran)', , 3(3), pp. 1031-1049.
Moatamednia, Mahboobeh, Malekian, Arash, Nohegar, Ahmad, Karimi, Kamal, Tavasoli, Ahad Performance of Different Models for Curve Number Estimation (Case study: Bar Watershed in Khorasan Razavi Province, Iran). , 2015; 3(3): 1031-1049.

Performance of Different Models for Curve Number Estimation (Case study: Bar Watershed in Khorasan Razavi Province, Iran)

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Article 1, Volume 3, Issue 3 - Serial Number 13, 2015, Pages 1031-1049    PDF (711.58 K)
Authors
Mahboobeh Moatamednia* 1; Arash Malekian2; Ahmad Nohegar3; Kamal Karimi4; Ahad Tavasoli1
1Ph.D. Students of Watershed Management Science and Engineering, Department of Watershed Management, Agriculture and Natural Resources Faculty, University of Hormozgan, Bandar Abbas, Iran
2Associate Professor, Faculty of Natural Resources, University of Tehran, Karaj, Iran
3Professor of Education, Programming and Environment Management Department, Faculty of Environmental Sciences, Tehran University, Karaj, Iran
4Expert, Natural Resources Office, Bafgh Township, Yazd, Iran
Abstract
Among different models for runoff estimation in watershed management, the Soil Conservation Services-Curve Number (SCS-CN) method along with its modifications have been widely applied to ungauged watersheds because of quickly and more accurate estimation of surface runoff. This approach has been widely accepted by hydrologists, water resources planners, foresters, and engineers, as well. Therefore, this work was aimed to estimate the curve number using CN-values through several methods viz. SCS, Sobhani (1975), Hawkins et al. (1985), Chow et al. (1988), Neitsch et al. (2002) and Mishra et al. (2008) in Bar Watershed, Iran. According to the results, the Neitsch formula showed the best performance for estimating the Curve Number in situation with low (CNI) and high (CNIII) antecedent moisture conditions. However, the weakest performance was related to Mishra (2008) in CNI and CNIII-conversions. The weakest performance was resulted from the exponential form of the Neitsch et al. formula and the variable meteorological conditions of the Bar Watershed over the year.
Keywords
Antecedent soil moisture; Flood estimation; North-Eastern Iran; Rainfall-runoff modeling
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