One effective strategy for preventing and lowering these flood hazards is appropriate modeling. Within this context, to quickly and more effectively identify possible flood zones, remote sensing techniques combined with hydrological geomorphological factors and GIS tools offer a solid platform for information combination, manipulation, and analysis. Finally, in order to assess the possibility of flooding risk spatially in the study area, this paper used morphometric analyses to determine the flash flood hazards of 25 sub-basins that belong to Watir Valley Basin. Within this context, five potential hazards were identified based on the flash flood risk evaluation of the Watir Valley Basin sub-basins: very low, low, moderate, high, and very high. According to the results, the sub-basins of SB3, SB5, and SB25 have the highest hydrodynamic risk (Very high). Generally, the study offers information that watershed managers for utilize to make better decisions and take more informed action regarding watershed prioritization for soil and water conservation programs and project implementation under scarce resources.

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Flash Flood Risk Modelling in the Watir Valley Basin, Nuweiba Area, Southeast Sinai, Egypt, Using GIS-Based Morphometric Analysis and Remote Sensing Techniques

  • Ali Hagras

摘要

One effective strategy for preventing and lowering these flood hazards is appropriate modeling. Within this context, to quickly and more effectively identify possible flood zones, remote sensing techniques combined with hydrological geomorphological factors and GIS tools offer a solid platform for information combination, manipulation, and analysis. Finally, in order to assess the possibility of flooding risk spatially in the study area, this paper used morphometric analyses to determine the flash flood hazards of 25 sub-basins that belong to Watir Valley Basin. Within this context, five potential hazards were identified based on the flash flood risk evaluation of the Watir Valley Basin sub-basins: very low, low, moderate, high, and very high. According to the results, the sub-basins of SB3, SB5, and SB25 have the highest hydrodynamic risk (Very high). Generally, the study offers information that watershed managers for utilize to make better decisions and take more informed action regarding watershed prioritization for soil and water conservation programs and project implementation under scarce resources.