The Analyses of Flooding Disaster in the Changjiang River Valley in 1998
1998年长江流域洪涝灾害分析

The authors have analyzed the flooding catastrophe in the Changjing River valley in 1998, and disscussed the causes which resulted in the flooding in this paper. Particularly, the authors illustrated the relation between the aqravated floods within Hunan Province and the variation of the regional strong precipitation with time, and revealed the strong raining period moving from May-June to July-August. This could make the chances increase that the floods would pile up in the upper valley of the Changjiang River, and might cause much more serious problems in the middle and lower valley of the Changjiang River. Since the 1980s, this kind of problems have occurred frequently, which hints something significant in climate variation.