Evaluation of a Reliable Method for Flash Flood Hazard Mapping in Arid Regions: A Case Study of the Gulf of Suez, Egypt

Mansour, Mahmoud M.; Nasr, Mahmoud; Fujii, Manabu; Yoshimura, Chihiro; Ibrahim, Mona G.

doi:10.1007/978-981-99-1381-7_10

Cited by 3 publications

(2 citation statements)

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“…In data-scarce regions, morphometric properties of basins are commonly utilized to assess flood risks (Elsadek et al 2019a). Flood hazard mapping, integrating morphometric analysis and geographic information systems (GIS), has emerged as a valuable tool for delineating and assessing the geohydrological properties of drainage basins (Mansour et al 2023;Bogale 2021;Obeidat et al 2021). For example, Omran et al (2011) employed GIS techniques to generate flood hazard maps based on geomorphological parameters and to estimate flood risks in Wadi Dahab, Egypt.…”

Section: Introductionmentioning

confidence: 99%

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Flood hazard mapping using a GIS-based morphometric analysis approach in arid regions, a case study in the Red Sea Region, Egypt

Abdelgawad,

Helal,

Sobeih

et al. 2024

Appl Water Sci

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Flash floods are a major threat to life and properties in arid regions. In recent decades, Egypt has experienced severe flash floods that have caused significant damage across the country, including the Red Sea region. The aim of this study is to map the flood hazards in flood-prone areas along the Red Sea region using a Geographic Information System (GIS)-based morphometric analysis approach. To evaluate the flood hazard degree, the adopted methodology considers various morphometric parameters such as basin area, slope, sinuosity index, shape factor, drainage intensity, circularity ratio, and curve number. GIS techniques were employed to delineate the watershed and the drainage network. The delineated watershed was used together with the digitized maps of soil and land use types to estimate the curve number and the morphometric parameters for each subbasin. The flood hazard degrees are calculated based on the considered morphometric parameters and distinguished based on a five-degree scale ranging from very low to very high. Results indicate that 47% of the study area has a very high flood hazard degree. Furthermore, morphometric analysis results align with the runoff results simulated by a hydrological model, where, for example, basins with a high to very high hazard degree exhibited high runoff. This suggests the influence of physical characteristics on the hydrological behavior of the watershed and further validates the morphometric analysis presented in this work. The results presented here can help policy planners and decision-makers develop appropriate measures to mitigate flash floods and achieve sustainable development in arid regions.

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Section: Introductionmentioning

confidence: 99%

“…Elsadek et al (2019a) conducted a morphometric analysis of Wadi Qena watershed using GIS techniques, finding that about half of the subbasins exhibited hazard degrees ranging from moderate to high. Moreover, Mansour et al (2023) employed morphometric analysis to map flash flood hazards for the Gulf of Suez in Egypt.…”

Section: Introductionmentioning

confidence: 99%