Spatial analysis of flood risks in Taif city using geographic information systems and remote sensing

Authors

1 الثصيم

2 Associate Professor of Geographic Information Systems, Department of Geography, College of Arabic Language and Social Studies, Qassim University, Kingdom of Saudi Arabia

Abstract

The Kingdom of Saudi Arabia, like other countries of the world, is exposed to various natural hazards, such as floods and floods. Many areas of Taif city have been hit by heavy rains that have led to rising water levels on streets and roads and disrupted traffic. Since it is impossible to push or prevent the risk of floods and floods, it is possible to reduce their impacts and their losses by making maps that identify threatened sites, undertake studies and research that improve the operation of monitoring networks, early warning systems and establish information bases. In this study, the canyon streams of flood and flood areas were accurately identified. Spatial analysis of areas threatened by torrents in Taif City was carried out using remote sensing and geographic information systems (GIS) techniques to build a spatial information base to benefit from the analysis of the Earth's surface topography through the analysis of the Digital Elevation Model (DEM) to analyse the regression, slope direction and surface aquatic analysis. Spatial analysis and the production of thematic maps were also carried out to identify residential and urban areas and roads threatened by floods and floods in the city of Taif. The study resulted in the identification of hazardous sites on canyons and reefs with a direct impact on the study area.

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