Flood hazards analysis of Jeddah city, Western Saudi Arabia

الملخص EN

Flash floods are among the most catastrophic natural extreme events that present a potential threat to both lives and property.

They occur immediately after heavy and short rainstorm duration.

Jeddah City, located in the middle part of the Red Sea coastal plain of Western Saudi Arabia, has received an unexpected amount of rainstorm in 25th November, 2009 and 29th Jan 2011 that has never happened in the last 5 decades.

Flooding events in this city, in fact, often result form the integration of several factors, including rainfall intensity, surface runoff, infiltration, topography and landuse.

These factors contribute an important role in flood generation.

This study represents an integrated approach of remote sensing, Geographic Information System (GIS) and hydrological models, which will be utilized to identify, asses, and categorize the vulnerable areas in Jeddah City.

Nevertheless, this study will help the decision makers for any future planning and for the better management of sustainable development of Jeddah environment.