Hydrometeorological hazards assessment of some basins in Southwestern Sinai area, Egypt

Arnous, Mohamed O.; Omar, Ali E.

doi:10.1007/s11852-018-0604-2

Cited by 20 publications

(9 citation statements)

References 30 publications

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“…Coastal cities are experiencing an increase in the frequency, severity, and effects of coastal flooding. The severity of floods is influenced by a variety of factors, including urban growth, expanded building, the installation of other assets near the shore, and climate change (Hallegatte et al 2013;Arnous and Omar 2018;Dhiman et al 2019;Dube et al 2022). Furthermore, several factors, particularly uncontrolled urban growth, climate change, and sea level rise, contribute to the hydrological hazards that coastal communities must manage.…”

Section: Introductionmentioning

confidence: 99%

“…Extreme weather events and flash flooding have accelerated as a consequence of climate change, posing new challenges for economic growth and the environment of coastal communities. Flash floods are among the world's catastrophic natural hazards which cause the greatest number of deaths and property damage (CEOS 2003;El-Rayes et al 2009;Arnous and Omar 2018;Moubarak et al 2021;Omran et al 2021). Floods, because of their disruptive nature, can have an impact on many aspects of human existence and can result in significant costs for mitigation measures.…”

Section: Introductionmentioning

confidence: 99%

“…The characteristics of the drainage network basin in various dry zones throughout the world were investigated using the principles of geomorphological methodologies, which are primarily based on Horton (1945) and Strahler (1964). The morphometric characteristics of the analysis of the network basins derived from digital remote sensing (RS) data were used to estimate, define, evaluate, forecast, and define the relationships between the morphometric characteristics of the basin and the potential for flash flood risk and its environmental impacts (Patton 1988;Gardiner 1990;Sameena et al 2009;Nageswararao et al 2010;Arnous and Omar 2018). Characterization of drainage plays a major role in determining flash flood danger (Dawod et al 2012).…”

Section: Introductionmentioning

confidence: 99%

“…Fig The watershed characteristics and morphometric parameters were automatically extracted based on Arc Hydro operational processes such as fill sinks, flow direction, stream definition, stream segmentation, and stream order (Kumar et al 2000;Zhang et al 2009;Omran et al 2011;Rai et al 2014;Arnous 2016;Arnous and Omar 2018). Filling sinks were used to check proper basin and stream network delineation.…”

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confidence: 99%

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Flash flooding hazard assessment, modeling, and management in the coastal zone of Ras Ghareb City, Gulf of Suez, Egypt

et al. 2022

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The assessment of flash flood hazards in the coastal zone of Ras Ghareb City (RGC), Red Sea, Egypt, was accomplished through the use of GIS tools and the spatial multi-criteria approach. The presented work aims to assess, integrate, and generate potential flash flood hazard maps. The analytic hierarchy process was utilized to calculate weights of hazard and vulnerability of flash flood controlling factors and their parameters such as topographical, geological, and hydrological factors. In addition, the risk degree of each specific basin and its sub-basins is estimated by combining standardized parameter values. Despite its location in an arid region, the basin may receive a large amount of rainwater, which can cause flash floods at the basin's outlet. Recently, flash flooding took place in the coastal region of RGC in October 2016 and September 2020, resulting in the loss of many human lives and catastrophic effects on local infrastructure and surrounding environments. According to reports from Hurghada, Red Sea Governorate, the RGC experienced exceptional flooding that exceeded 120 million cubic meters as a result of 51 mm of rainfall. Based on the remote sensing satellite data such as Aster Digital Elevation Model (GDEM) and the GIS tools, the basin and sub-basin drainage patterns were delineated and compared with reference topographical map sheets of a scale of 1: 50,000. The sub-basins have been isolated and morphometrically studied to determine vulnerability to flash flooding. In addition, the flash flood threat model was developed using geoprocessing tools provided by ArcGIS software to incorporate all contributing factors spatially. The flash flood risk in the Ras Ghareb (RG) basins and their sub-basins has been identified and classified into three classes (high, medium, and low hazard degree). High and moderate flood-risk basins require comprehensive studies to introduce measures to protect certain areas from flood danger. Finally, the GIS and the spatial multi-criteria analyses were effective ways to carry out a flash flood management system in order to support the decision-makers by recommendations to conserve and mitigate the possible flash flood hazards in the study areas.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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confidence: 99%

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Flash flooding hazard assessment, modeling, and management in the coastal zone of Ras Ghareb City, Gulf of Suez, Egypt

et al. 2022

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“…These approaches have been utilized in a variety of research, including mineral exploration, environmental hazard, radiation hazard assessment, urbanization, and geotechnical modeling (Omar et al 2016a(Omar et al , b, 2021Arnous and Omar 2018;Saad et al 2020a, b;Sakr et al 2021;Omar 2021;Arnous et al 2021;Aita and Omar 2021;Khan et al 2021). All these recent publications demonstrated GIS's potential to simplify data interpretation and produce superior outcomes.…”

Section: Introductionmentioning

confidence: 99%

Geoengineering characteristics modeling of Eocene limestone beds of the upper plateau of Mokattam area, Egypt using GIS techniques

et al. 2022

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This research paper is concerned with studying and evaluating the geoengineering characteristics and potential risks of the area under study with a view to safe urban expansion using GIS techniques. Different geotechnical laboratory tests such Atterberg limits, free swelling test, swell potential and pressure tests, chemical analysis, unconfined compressive strength (UCS) and rock quality designation (RQD) were performed on 28 boreholes (95 samples). Furthermore, X-ray diffraction was used to examine clay minerals. The results indicate that the UCS values range from 47 to 72.2 kg/cm2 and RQD from 21 to 45%. The free swell ratio ranges from 110 to 120%, and the plasticity index from 34 to 37%. In addition, GIS techniques have been utilized to produce the distribution layers of different geotechnical characteristics, then integrated to produce a geospatial urban model for delineating and defining safe and dangerous urban zones. This model is classified into four classes: low, moderate, high and very high hazard. Low and moderate hazards were detected in the major portion of the survey area. These portions are suitable for foundations at shallow depths. However, high to very high hazards were detected in the southeast portion of the study area. The reason for these areas is caused by the existence of heavily fractured limestone and highly swelling clay layers. This model would aid in the creation and discovery of the best areas of shallow base in the region under consideration.

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A comparative study of morphometric, hydrologic, and semi-empirical methods for the prioritization of sub-watersheds against flash flood-induced landslides in a part of the Indian Himalayan Region

Singh,

Kansal

2023

Environ Sci Pollut Res

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Hydrometeorological hazards assessment of some basins in Southwestern Sinai area, Egypt

Cited by 20 publications

References 30 publications

Flash flooding hazard assessment, modeling, and management in the coastal zone of Ras Ghareb City, Gulf of Suez, Egypt

Flash flooding hazard assessment, modeling, and management in the coastal zone of Ras Ghareb City, Gulf of Suez, Egypt

Geoengineering characteristics modeling of Eocene limestone beds of the upper plateau of Mokattam area, Egypt using GIS techniques

A comparative study of morphometric, hydrologic, and semi-empirical methods for the prioritization of sub-watersheds against flash flood-induced landslides in a part of the Indian Himalayan Region

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