A New Approach for Risk Analysis of Meteorological Factor

Comparing with other natural disasters, the influence area of meteorological disasters is biggest. It is estimated that of the total economical loss caused by all kinds of disasters, 70% was due to meteorological disasters. In this paper the risk analysis method, based on information diffusion theory, was used to advance a model for risk analysis of meteorological factor. Application of the model was also illustrated taking the Jinhua hydrometric station and Qiantang River drainage basins as examples. The result also indicated that the information diffusion technology is highly capable of extracting sufficient useful information and therefore improves the system recognition accuracy. The method can be applied easily and its analytical end result is easy to understand. It may play a guiding role on disaster prevention to some extent.