Research Article

[Retracted] Prediction and Risk Assessment of Extreme Weather Events Based on Gumbel Copula Function

Table 1

Test statistics and correlation coefficient of marginal distribution function.

VariableFitting functionStatistic value Critical value Correlation coefficient

Extent of damageGamma0.87010.18210.3226- (0.6007)
Log-normal0.75570.1524
GEV0.12650.2849
exp0.27820.2523
P30.72490.1049

Damage scopeGamma0.47210.34260.3226- (0.6239)
Log-normal0.79320.2576
GEV0.34250.1027
exp0.41920.4026
P30.24910.2849

Weather event durationGamma0.80470.12390.3226- (0.5981)
Log-normal0.82450.1597
GEV0.90420.9034
exp0.82010.1942
P30.96250.0892

Note: the boldface in the table is the optimal marginal distribution function.