时空角度下极端天气的可达性指标比较
路庆昌,张图,王琴,徐标

Comparison of accessibility indices for extreme weather events from spatiotemporal perspectives
Qingchang LU,Tu ZHANG,Qin WANG,Biao XU
表 1 重力型阻抗函数的标定系数
Tab.1 Calibration coefficients of gravity-type impedance function
灾害阶段函数类型abcR2
灾前线性0.637 62.869 50.811 2
指数0.875 61.871 50.814 3
对数46.581 00.017 81.045 80.815 5
灾中线性0.574 73.699 00.858 9
指数0.856 12.439 30.868 2
对数32.637 00.027 51.071 20.871 1
灾后线性0.652 43.011 00.821 4
指数0.881 72.061 10.828 2
对数35.451 00.026 51.053 50.832 4