Table 2 Correlation coefficients (R) and p-values between the snow cover extent and other variables (precipitation and climate indexes).

From: Rapid decline in extratropical Andean snow cover driven by the poleward migration of the Southern Hemisphere westerlies

Snow cover extent ↓

Precipitation

SAM index

SST ENSO 3.4

SST ENSO 1 + 2

R

p-value

R

p-value

R

p-value

R

p-value

Region I (27–31°S)

+ 0.7

0.00

-0.5

0.03

+ 0.1

0.76

+ 0.1

0.58

 Copiapo Basin

+ 0.6

0.01

-0.5

0.02

+ 0.1

0.84

+ 0.2

0.43

 Elqui Basin

+ 0.7

0.00

-0.5

0.02

+ 0.2

0.32

+ 0.2

0.35

 Grande Basin

+ 0.8

0.00

-0.6

0.02

+ 0.2

0.28

+ 0.2

0.37

 Huasco Basin

+ 0.7

0.00

-0.3

0.20

+ 0.2

0.36

+ 0.2

0.41

 Hurtado Basin

+ 0.7

0.00

-0.5

0.02

+ 0.2

0.47

+ 0.2

0.49

Region II (31–34°S)

+ 0.8

0.00

-0.5

0.03

+ 0.4

0.05

+ 0.4

0.10

 Aconcagua Basin

+ 0.8

0.00

-0.5

0.03

+ 0.4

0.10

+ 0.3

0.12

 Choapa Basin

+ 0.8

0.00

-0.5

0.02

+ 0.3

0.17

+ 0.3

0.17

 Colorado Basin

+ 0.8

0.00

-0.5

0.02

+ 0.5

0.03

+ 0.4

0.08

 Juncal Basin

+ 0.8

0.00

-0.5

0.04

+ 0.4

0.08

+ 0.4

0.11

 Maipo Basin

+ 0.8

0.00

-0.4

0.03

+ 0.5

0.02

+ 0.4

0.08

 Mapocho Basin

+ 0.9

0.00

-0.5

0.03

+ 0.4

0.06

+ 0.3

0.19

 Putaendo Basin

+ 0.8

0.00

-0.5

0.02

+ 0.3

0.15

+ 0.3

0.15

Region III (34–36°S)

+ 0.9

0.00

-0.6

0.01

+ 0.4

0.04

+ 0.3

0.21

 Cachapoal Basin

+ 0.8

0.00

-0.5

0.03

+ 0.5

0.02

+ 0.4

0.09

 Claro (Hacienda) Basin

+ 0.8

0.00

-0.5

0.03

+ 0.3

0.12

+ 0.3

0.19

 Claro (Los Quenes) Basin

+ 0.8

0.00

-0.6

0.00

+ 0.3

0.12

+ 0.2

0.32

 Maule Basin

+ 0.9

0.00

-0.6

0.00

+ 0.4

0.10

+ 0.2

0.45

 Teno Basin

+ 0.9

0.00

-0.5

0.01

+ 0.5

0.03

+ 0.3

0.12

 Tinguiririca Basin

+ 0.8

0.00

-0.5

0.04

+ 0.5

0.02

+ 0.4

0.05

  1. Correlations considered significant (p-value < 0.05) are highlighted in bold.