Abstract:

Prediction and pre-warning of urban flood is of great importance to secure the normal operation of a healthy city. In order to efficiently improve the risk pre-warning assessment ability for urban flood, it is necessary to utilize the advanced method and technique from overseas. The risk pre-warning assessment ability system for 2-D urban flood and flood situation of drainage area (FRMFS) technique which was introduced into Zhejiang province was at the advanced international standards. In line with the actual situation of China, this technique was absorbed, assimilated and redeveloped. It’s applicability for towns, mid-sized and small cities are verified from the aspects of data acquisition, prediction model, and results display. The achievement of some real cases indicates that this system can efficiently improve the ability of risk pre-warning assessment for urban flood.

Key words: urban flood, risk pre-warning, forecast assessment, introduction and development