干旱区生态环境知识资源中心(Arid): Evaluation of the Time of Concentration Models for Enhanced Peak Flood Estimation in Arid Regions

Arid

DOI	10.3390/su15031987
	Evaluation of the Time of Concentration Models for Enhanced Peak Flood Estimation in Arid Regions
	Alamri, Nassir; Afolabi, Kazir; Ewea, Hatem; Elfeki, Amro
通讯作者	Afolabi, K
来源期刊	SUSTAINABILITY
EISSN	2071-1050
出版年	2023
卷号	15 期号:3
英文摘要	The uncertainties in the time of concentration (T-c) model estimate from contrasting environments constitute a setback, as errors in T-c lead to errors in peak discharge. Analysis of such uncertainties in model prediction in arid watersheds is unavailable. This study tests the performance and variability of T-c model estimates. Further, the probability distribution that best fits observed T-c is determined. Lastly, a new T-c model is proposed, relying on data from arid watersheds. A total of 161 storm events from 19 gauged watersheds in Southwest Saudi Arabia were studied. Several indicators of model performance were applied. The Dooge model showed the best correlation, with r equal to 0.60. The Jung model exhibited the best predictive capability, with normalized Nash-Sutcliffe efficiency (NNSE) of 0.60, the lowest root mean square error (RMSE) of 4.72 h, and the least underestimation of T-c by 1%. The Kirpich model demonstrated the least overestimation of T-c by 4%. Log-normal distribution best fits the observed T-c variability. The proposed model shows improved performance with r and NNSE of 0.62, RMSE of 4.53 h, and percent bias (PBIAS) of 0.9%. This model offers a useful alternative for T-c estimation in the Saudi arid environment and improves peak flood forecasting.
英文关键词	time of concentration peak flood flood hydrograph uncertainty PDF arid regions
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000929689400001
WOS类目	Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398751
推荐引用方式 GB/T 7714	Alamri, Nassir,Afolabi, Kazir,Ewea, Hatem,et al. Evaluation of the Time of Concentration Models for Enhanced Peak Flood Estimation in Arid Regions[J],2023,15(3).
APA	Alamri, Nassir,Afolabi, Kazir,Ewea, Hatem,&Elfeki, Amro.(2023).Evaluation of the Time of Concentration Models for Enhanced Peak Flood Estimation in Arid Regions.SUSTAINABILITY,15(3).
MLA	Alamri, Nassir,et al."Evaluation of the Time of Concentration Models for Enhanced Peak Flood Estimation in Arid Regions".SUSTAINABILITY 15.3(2023).