[1]School of Public Policy and Management;
Tsinghua University;
Beijing 100084;
China;
[2]Center for Crisis Management Research;
Tsinghua University;
Beijing 100084;
China;
[3]Center for Social Risk Assessment in China;
Tsinghua University;
Beijing 100084;
China;
Disastrous weather; Hail-gale-thunderstorm-lightning; Spatio-temporal pattern; Characteristic of periodic oscillation; Mutation test;