Table 6 Results of the linear trends b (/a) and Spearman’s correlation coefficients (SCC) between annual and seasonal station-averaged wind speed and climate indices (PDO, AO and NAO) during 1960–2015.

From: Inter- and intra-annual wind speed variabilities in wide valley regions of the middle reaches of the Yarlung Tsangpo River, China

Period

PDO

AO

NAO

b (/a)

SCC

b (/a)

SCC

b (/a)

SCC

Annual

0.011

− 0.04

0.007

− 0.22

0.001

0.03

Spring

0.017

− 0.10

0.007

− 0.19

0.040

− 0.20

Summer

0.010

0.05

− 0.0003

− 0.03

− 0.070

0.25

Autumn

0.004

0.21

0.003

− 0.06

− 0.020

0.17

Winter

0.014

− 0.13

0.017

− 0.14

0.100

− 0.18

  1. Values in italic and bold and in bold represent the correlation coefficient were statistically significant at 0.01 and 0.05 confidence level, respectively.
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