干旱区生态环境知识资源中心(Arid): Analysis of maximum flood records in the arid environment of Saudi Arabia

Arid

DOI	10.1080/19475705.2020.1810783
	Analysis of maximum flood records in the arid environment of Saudi Arabia
	Ewea, Hatem A.; Al-Amri, Nassir S.; Elfeki, Amro M.
通讯作者	Ewea, HA
来源期刊	GEOMATICS NATURAL HAZARDS & RISK
ISSN	1947-5705
EISSN	1947-5713
出版年	2020
卷号	11 期号:1 页码:1743-1759
英文摘要	A collection of rainfall data and flood records for ephemeral channels in the Kingdom of Saudi Arabia (KSA) provided a unique opportunity to analyze the extreme records in such arid environment. Data of 3121 records were collected. A regional flood envelope relationships and other envelope curves in similar arid areas were compared with the current study. We found that the envelope of the maximum-recorded peak discharge versus basin area followsQpmax=700A0.26.The exponent falls in the range of the exponents in other arid basins. The enveloping curve for the volume versus basin area isVmax=0.0004A1.7.The parameters of the equation are significantly different from that of the arid Negev desert, Israel. Derived peak flow-volume relationship has the formVmax=400x103Qp1.2.We found such relation is similar to arid/semi-arid southwestern United States but with slightly higher exponent and constant. When the peak discharge and maximum volume are plotted against their accompanied rainfall depth,p, linear envelope in log- log plot are developed for KSA region:Qpmax=76p0.8andVmax=680x103p0.77.The equations predict the upper limit of the expected peak discharges and volumes that can be used for hydro-engineering applications in ungauged basins in the study region and regions a like. The developed envelope curves can also be used as an alternative or guide to performing rainfall-runoff modeling in KSA. The volume-area envelope equations have high degree of credibility since, 92% of the published data used for validation falls within the upper and lower envelope limits. These envelope curves have to be updated when more records are available.
英文关键词	Envelope curves extreme rainfall peak discharge runoff volume severe floods Saudi Arabia arid regions
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000568311200001
WOS关键词	ENVELOPE CURVES ; RAINFALL-RUNOFF ; FREQUENCY ; KINGDOM ; DURATION ; EVENTS ; NEGEV
WOS类目	Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences ; Water Resources
WOS研究方向	Geology ; Meteorology & Atmospheric Sciences ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326191
作者单位	[Ewea, Hatem A.; Al-Amri, Nassir S.; Elfeki, Amro M.] 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	Ewea, Hatem A.,Al-Amri, Nassir S.,Elfeki, Amro M.. Analysis of maximum flood records in the arid environment of Saudi Arabia[J],2020,11(1):1743-1759.
APA	Ewea, Hatem A.,Al-Amri, Nassir S.,&Elfeki, Amro M..(2020).Analysis of maximum flood records in the arid environment of Saudi Arabia.GEOMATICS NATURAL HAZARDS & RISK,11(1),1743-1759.
MLA	Ewea, Hatem A.,et al."Analysis of maximum flood records in the arid environment of Saudi Arabia".GEOMATICS NATURAL HAZARDS & RISK 11.1(2020):1743-1759.