أخطار السيول في مدينة القاهرة الجديدة باستخدام النمذجة الهيدرولوجية ثلاثية الأبعاد

الملخص EN

Flash flood is considered one of the natural problems that threaten the development work.

this research is concerned with studying the dangers of flash floods in one of the most important cities of the greater Cairo region, which is the city of New Cairo, through the use of advanced hydrological methods and techniques to simulate the danger of flash flood flow within the work of spatial modeling, which is one of the recent trends in the field of Geomatics.

this is to reach an accurate identification of the areas threatened by the danger of flash flood flow and their classifications according to the degrees of danger and the extent of their impact on the constructions, utilities, infrastructure and all human activities that obstruct the path of the flash flood flow.

the study area occupies an area of 420.5 km2, and the city of New Cairo was built on 73.9% of the study area, on a large group of drainage basins, whose number is fourteen (14) ones descending from the southern edge towards the north and northwest.

the area was hit by several rainstorms during the past 36 years, which prompted the researcher to study the region more accurately through the application on one of the rainstorms to determine the extent of danger upon the city and its geospatial dimensions.

the study has reached many important points in addressing and evaluating the risk of flash flood flow in the study area, some of them are related to digital elevation models, others are related to the application of more accurate and effective techniques, and others are aimed at laying foundations and awareness-raising applications for the local civil society in particular.

this is in addition to some organizational procedures that are inevitable to ward off the dangers of flash flood flow from the new urban areas.