Table 5 Ensemble mean trends and percent area experiencing robust signals of change for Tm (seconds per year) and θm (degrees per year) for the JJA season.

From: Global ocean wave fields show consistent regional trends between 1980 and 2014 in a multi-product ensemble

Region

Tm JJA

θm JJA

 

Positive trend (s/yr)

Negative trend (s/yr)

CW trend (°/yr)

CCW trend (°/yr)

% area

Mean

% area

Mean

% area

Mean

% area

Mean

NP

5

0.009 ± 0.003

0

−0.008 ± 0.003

32

0.27 ± 0.15

8

−0.28 ± 0.19

NA

38

0.008 ± 0.002

0

−0.004 ± 0.003

22

0.42 ± 0.29

21

−0.37 ± 0.29

TP

27

0.009 ± 0.003

1

−0.007 ± 0.005

12

0.17 ± 0.09

32

−0.14 ± 0.07

TA

33

0.008 ± 0.002

1

−0.009 ± 0.004

13

0.15 ± 0.09

30

−0.12 ± 0.07

TI

15

0.006 ± 0.002

3

−0.010 ± 0.003

6

0.10 ± 0.08

31

−0.09 ± 0.06

SP

46

0.009 ± 0.003

1

−0.006 ± 0.002

21

0.14 ± 0.06

15

−0.12 ± 0.05

SA

36

0.009 ± 0.003

1

−0.006 ± 0.003

17

0.15 ± 0.10

21

−0.11 ± 0.05

SI

11

0.006 ± 0.002

0

−0.003 ± 0.001

1

0.05 ± 0.03

38

−0.09 ± 0.04

Globe

29

0.008 ± 0.003

1

−0.008 ± 0.004

15

0.23 ± 0.26

21

−0.14 ± 0.13

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