| Recently、the huge water-related disasters increased greatly compared to the annual average in Asia because of extreme meteorological events especially. In a complex area such as large basin there are many factors having a negative influence to flood. The purpose of this study is to identify the inundation area over the global flood disaster risk. In this case、we suggest that the estimated volume of overflow discharge is determined by the inundation areas and depth at the flood peak using ALOS images and ground-based rain gauge data. Comparing analysis is conducted on the Kabul River in Pakistan during august 2010. |