Table 7: Pearson’s correlation coefficients between the PCD and large-scale atmospheric circulation and summer monsoon indices.

IndexWNSCZYIPXYXLXMZYSASDJXRWMXYZYHSLDDSFS

Northern extension of NHSH0.150.210.140.070.080.000.01−0.020.17−0.040.000.00−0.010.070.090.030.07−0.15
Area of NHSH0.080.12−0.100.060.06−0.07−0.09−0.060.260.140.270.150.160.190.200.200.150.14
Strength of NHSH0.090.17−0.050.070.08−0.04−0.05−0.060.290.130.260.180.150.210.220.230.140.14

Area of NHPV0.200.170.310.260.02−0.020.020.160.03−0.070.090.040.05−0.06−0.08−0.08−0.070.13
Strength of NHPV0.01−0.080.030.00−0.06−0.12−0.100.05−0.21−0.14−0.05−0.12−0.04−0.24−0.20−0.24−0.22−0.06
Strength of NHPVC0.160.200.190.14−0.040.120.150.060.250.140.190.230.160.340.250.280.24−0.02
Station of NHPVC0.100.04−0.06−0.04−0.010.000.01−0.180.00−0.08−0.04−0.14−0.08−0.09−0.02−0.20−0.07−0.32

Northern extension of SCSSH0.040.130.090.120.10−0.06−0.050.050.09−0.11−0.030.00−0.05−0.17−0.08−0.07−0.150.15
Area of SCSSH0.100.10−0.060.030.03−0.10−0.060.000.180.100.200.100.130.060.090.050.020.16
Strength of SCSSH0.120.10−0.070.020.02−0.11−0.070.000.170.110.150.060.070.020.080.030.000.17

Northern extension of WPSH0.120.06−0.040.09−0.07−0.12−0.03−0.050.190.040.07−0.04−0.010.040.04−0.020.00−0.04
Area of WPSH0.050.09−0.100.040.07−0.09−0.070.010.220.090.250.100.110.090.120.090.050.13
Strength of WPSH0.070.10−0.090.040.03−0.11−0.08−0.010.240.120.250.120.080.110.140.100.050.19

Northern extension of ISH0.110.190.040.090.02−0.06−0.21−0.130.200.120.100.090.150.140.250.040.080.08
Strength of ISH0.570.480.030.29−0.11−0.06−0.15−0.060.430.330.290.180.310.310.400.270.160.14
Area of ISH0.570.480.040.289−0.12−0.05−0.14−0.060.430.320.290.180.310.320.400.270.160.12

EASMI0.020.100.120.030.04−0.04−0.11−0.06−0.20−0.37−0.18−0.220.01−0.15−0.20−0.22−0.23−0.29
SASMI−0.18−0.110.05−0.05−0.01−0.14−0.13−0.07−0.25−0.41−0.26−0.220.00−0.28−0.31−0.19−0.28−0.23
SCSSMI−0.13−0.080.110.00−0.02−0.10−0.110.01−0.26−0.40−0.16−0.170.00−0.23−0.26−0.20−0.32−0.23

Significant at the 0.01 level; significant at the 0.05 level.