Research Article

Assessing the Probability of Drought Severity in a Homogeneous Region

Table 4

Each coupled (, ) series for bivariate models, their parameters, Kendall’s Tau correlation (according to the model and empirical), AIC, and p values at the Northern area.

ParametersKendall's tau
FamilyModelEmpiricalAIC value

Gumbel1.500.330.30−10.49<0.05
Gumbel1.980.490.45−27.98<0.05
T0.742.00.530.54−40.71<0.05
Gaussian0.910.740.72−81.71<0.05
Gumbel10.230.900.91−162.6<0.05