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DOI	10.3390/ijgi10070431
	Examining the Impact of Different DEM Sources and Geomorphology on Flash Flood Analysis in Hyper-Arid Deserts
	El Bastawesy, Mohammed; El Saadawy, Omnia; Abotalib, Abotalib Z.; Othman, Abdullah; Taha, Maysa; Gaber, Ahmed
通讯作者	Abotalib, AZ (corresponding author), Natl Author Remote Sensing & Space Sci, Div Geol Applicat & Mineral Resources, Cairo 11765, Egypt. ; Abotalib, AZ (corresponding author), Univ Southern Calif, Viterbi Sch Engn, Los Angeles, CA 98009 USA.
来源期刊	ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION
EISSN	2220-9964
出版年	2021
卷号	10 期号:7
英文摘要	Digital elevation models (DEMs) are the cornerstone for hydrological and geomorphological modeling. Herein, two Nile-tributary catchments (Wadi Al Rishrash and Wadi Atfeh) in Egypt are selected to examine the contribution of different DEMs to the accuracy of hydrological and geomorphological analyses in the hyper-arid Sahara. DEMs sources include: Advanced Land Observing Satellite-1 (ALOS) Phased Array type L-band Synthetic Aperture Radar (PALSAR) (12.5 m resolution), ALOS World 3D with 30 m resolution (AW3D30), Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER DEM with 30 m resolution) and the Shuttle Radar Topography Mission (SRTM with 30 and 90 m resolution), in addition to topographic map-derived DEM (90 m resolution). Using a hypothetical uniformly-distributed 10 mm rainfall event, the estimated parameters, including: flow duration, time to peak and peak discharge rates, are almost similar for the different DEMs and thus technical aspects related to sources and resolutions of the datasets impose insignificant control on quantitative flash-flood analyses. Conversely, variations in geological and geomorphological characteristics of the catchments show more significant control on the hydrograph magnitudes as indicated by the different parameters of the two catchments. These findings indicate that understanding the geological and hydrological evolution of the catchment is essential for integrated management strategies of floods especially in the Saharan-Arabian deserts and in similar conditions of hyper-aridity and scarce in situ data worldwide.
英文关键词	DEM Eastern Desert of Egypt data sources flash floods geomorphology
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000676682100001
WOS关键词	DIGITAL ELEVATION MODELS ; WESTERN DESERT ; VALIDATION ; SYSTEM ; EGYPT ; GIS
WOS类目	Computer Science, Information Systems ; Geography, Physical ; Remote Sensing
WOS研究方向	Computer Science ; Physical Geography ; Remote Sensing
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363689
作者单位	[El Bastawesy, Mohammed; El Saadawy, Omnia; Abotalib, Abotalib Z.] Natl Author Remote Sensing & Space Sci, Div Geol Applicat & Mineral Resources, Cairo 11765, Egypt; [Abotalib, Abotalib Z.] Univ Southern Calif, Viterbi Sch Engn, Los Angeles, CA 98009 USA; [Othman, Abdullah] Umm Al Qura Univ, Dept Environm Engn, Mecca 21955, Saudi Arabia; [Othman, Abdullah] Umm Al Qura Univ, Nat Hazards Res Unit, Dept Environm & Hlth Res, Mecca 21955, Saudi Arabia; [Taha, Maysa] Helwan Univ, Dept Geol, Cairo 11795, Egypt; [Gaber, Ahmed] Port Said Univ, Dept Geol, Port Said 42511, Egypt
推荐引用方式 GB/T 7714	El Bastawesy, Mohammed,El Saadawy, Omnia,Abotalib, Abotalib Z.,et al. Examining the Impact of Different DEM Sources and Geomorphology on Flash Flood Analysis in Hyper-Arid Deserts[J],2021,10(7).
APA	El Bastawesy, Mohammed,El Saadawy, Omnia,Abotalib, Abotalib Z.,Othman, Abdullah,Taha, Maysa,&Gaber, Ahmed.(2021).Examining the Impact of Different DEM Sources and Geomorphology on Flash Flood Analysis in Hyper-Arid Deserts.ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION,10(7).
MLA	El Bastawesy, Mohammed,et al."Examining the Impact of Different DEM Sources and Geomorphology on Flash Flood Analysis in Hyper-Arid Deserts".ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION 10.7(2021).