干旱区生态环境知识资源中心(Arid): Evaluation and validity of the antecedent moisture condition (AMC) of Natural Resources Conservation Service-Curve Number (NRCS-CN) procedure in undeveloped arid basins

Arid

DOI	10.1007/s12517-020-5242-y
	Evaluation and validity of the antecedent moisture condition (AMC) of Natural Resources Conservation Service-Curve Number (NRCS-CN) procedure in undeveloped arid basins
	Farran, Mohammed Mohammed; Elfeki, Amro Mohamed
通讯作者	Farran, Mohammed Mohammed
来源期刊	ARABIAN JOURNAL OF GEOSCIENCES
ISSN	1866-7511
EISSN	1866-7538
出版年	2020
卷号	13 期号:6
英文摘要	The available conversion formulae for AMC-CN are estimated in an environment that is not arid. The validity of these formulae in arid regions is questionable. Therefore, in the current study, a focus is made on studying the validity of the NRCS-CN theory, its AMC, formulas, and derivation of conversion formulae of CN for some arid basins in the southwest Saudi Arabia (SA). One hundred sixty-one rainfall-runoff events have been collected over a period of 4 years on 19 sub-basins in the study area. The results show that in arid regions the AMCI antecedent moisture condition at (dry) conditions is dominant. It has been shown that the abstraction ratio, lambda = 0.01, is the best to fit the NRCS-CN theory when compared with lambda = 0.2 or 0.3. The observed and estimated runoff show that the root mean square error (RMSE) is the lowest for lambda = 0.01 (1.8 mm, 3.69 mm, and 1.36 mm) when compared with lambda = 0.2 (4.21 mm, 12.13 mm, and 3.15 mm) and lambda = 0.3 (5.74 mm, 13.92 mm, and 3.1 mm) for CNI (CN at dry condition), CNII (CN at normal condition), and CNIII (CN at wet condition) respectively. The upper and lower limits of lambda, in SA, are 0.02 (90% probability) and 0.00001 (10% probability) respectively. The runoff coefficient is less than 0.4. This is due to high transmission losses which is typical in arid regions. The study recommends using lambda = 0.01 and the developed AMC-CN formulae for enhanced runoff predictions in SA.
英文关键词	NRCS-CN theory Curve number Antecedent moisture condition Arid regions Initial abstraction Saudi Arabia
类型	Article
语种	英语
国家	Saudi Arabia
收录类别	SCI-E
WOS记录号	WOS:000521126600001
WOS关键词	INITIAL ABSTRACTION RATIO ; MODEL
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314089
作者单位	King Abdulaziz Univ, Fac Meteorol Environm & Arid Land Agr, Dept Hydrol & Water Resources Management, Jeddah, Saudi Arabia
推荐引用方式 GB/T 7714	Farran, Mohammed Mohammed,Elfeki, Amro Mohamed. Evaluation and validity of the antecedent moisture condition (AMC) of Natural Resources Conservation Service-Curve Number (NRCS-CN) procedure in undeveloped arid basins[J],2020,13(6).
APA	Farran, Mohammed Mohammed,&Elfeki, Amro Mohamed.(2020).Evaluation and validity of the antecedent moisture condition (AMC) of Natural Resources Conservation Service-Curve Number (NRCS-CN) procedure in undeveloped arid basins.ARABIAN JOURNAL OF GEOSCIENCES,13(6).
MLA	Farran, Mohammed Mohammed,et al."Evaluation and validity of the antecedent moisture condition (AMC) of Natural Resources Conservation Service-Curve Number (NRCS-CN) procedure in undeveloped arid basins".ARABIAN JOURNAL OF GEOSCIENCES 13.6(2020).