孟加拉国位于恒河和布拉马普特河三角洲,大部海拔在10米以下,是世界上洪水灾害最严重的国家,每年被淹国土都在10％以上。除台风带来暴雨引发水灾外,喜马拉雅山区的暴雨也会引起水灾。1988年的水灾是近百年来最严重的一次暴雨型水灾。这年8～9月,整个喜马拉雅山地普降暴雨,千流汇入孟加拉国出 Bangladesh is located in the Ganges and Brahmaputra deltas, most of the elevation of 10 meters below the world flood disaster is the most serious countries, flooded land each year in more than 10%. In addition to torrential rains that cause floods in the typhoon, heavy rains in the Himalayas can also cause floods. The flood in 1988 was the worst storm-type flood in nearly a century. This year 8 ~ September, the whole Himalayas heavy rainfall, thousands of flow into Bangladesh