Research on the Network Evolution of Rainstorm Disaster Chains

To figure out the logical causal relationship between rainstorm disaster and its secondary and derivative disaster events, the statistical rainstorm disaster data in Zibo City in recent ten years and the extraordinary rainstorm disaster records throughout China in recent 20 years were used as the case data in this study. Next, the rainstorm disaster chain was extracted through the event tree analysis method. In the end, the rainstorm disaster evolution network was constructed via Pajek software. Thereby, the causal relationship between rainstorm disaster and its secondary and derivative disaster events was clarified greatly, thus providing theoretical guidance for the chain-cutting alleviation of rainstorm-derived disasters.