14th of the International Conference on Hydroscience & Engineering（ICHE2022)
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和文:
イズミル
英文:
IZMİR
アブストラクト
Flash floods can be considered as one of the most deleterious impacts on the urban dwellings, particularly after the unprecedented changes in climate. Society, economy, and environment are largely affected by the negative consequences of floods. This study aims to predict the most susceptible area to flash floods in the region of Fifth District, New Cairo - Egypt. The studied area is constantly struck by flash floods which paralyzes the livelihood during the period of floods. Meanwhile, after surveying the studied district, 100 spots were considered as flooded points. 70% of them were randomly selected for training, whilst 30% were used for validation. In addition, five factors of the environmental parameters were considered in order to produce the flood hazard map (elevation, slope, land use, flow length, distance to streamlines). Furthermore, the weightage of each environmental parameter was obtained by Frequency Ratio (FR) method. The hazard map was categorized into 5 classes (Very Low, Low, Moderate, High, Very High). Moreover, nearly 10.85% of the entire area was classified as very high. Eventually, the results were validated by using AUC-ROC as the area under the curve was found to be 83.3% which can be acceptable. Furthermore, decision makers can use the obtained flood susceptible map to alleviate the effect of flash floods.
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