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Natural Climate Variability on Decade-to-Century Time Scales
TABLE 2 Century Means of Interannual and Interdecadal Variability for 18 Temperature Indices (index sources identified in Table 1)
Index
Century
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
500s (ann.)
x
x
x
x
x
x
x
x
x
x
x
.84
x
x
x
x
x
x
(decad.)
x
x
x
x
x
x
x
x
x
x
x
.20
x
x
x
x
x
x
600s (ann.)
x
x
x
x
x
x
x
x
x
x
x
.79
x
x
x
x
x
x
(decad.)
x
x
x
x
x
x
x
x
x
x
x
.27
x
x
x
x
x
x
700s (ann.)
x
x
x
x
x
x
x
x
x
x
x
.64
x
x
x
x
x
x
(decad.)
x
x
x
x
x
x
x
x
x
x
x
.40
x
x
x
x
x
x
800s (ann.)
x
x
x
x
x
x
x
x
x
x
x
.63
x
x
x
x
x
x
(decad.)
x
x
x
x
x
x
x
x
x
x
x
.35
x
x
x
x
x
x
900s (ann.)
x
x
x
x
x
x
x
x
x
x
x
.70
.27
x
x
,x
x
.87
(decad.)
x
x
x
x
x
x
x
x
x
x
x
.31
.18
x
x
x
x
.41
1000s (ann.)
x
x
x
x
x
x
x
x
x
x
x
.66
1.95
x
x
.53
x
.71
(decad.)
x
x
x
x
x
x
x
x
x
x
x
.25
.53
x
x
.25
x
.28
1100s (ann.)
x
x
x
x
x
x
x
x
x
x
x
.69
1.70
x
x
.62
x
.46
(decad.)
x
x
x
x
x
x
x
x
x
x
x
.43
.56
x
x
.20
x
.14
1200s (ann.)
x
x
1.36
1.25
x
x
x
x
x
x
x
.69
1.85
x
x
.43
x
.59
(decad.)
x
x
.53
.85
x
x
x
x
x
x
x
.22
1.02
x
x
.16
x
.29
1300s (ann.)
.93
x
1.10
1.36
x
x
x
x
x
x
x
.68
2.47
x
x
.42
x
.68
(decad.)
.39
x
.65
.68
x
x
x
x
x
x
x
.30
.66
x
x
.30
x
.19
1400s (ann.)
.70
x
1.38
1.27
x
x
x
x
x
x
x
.68
2.02
x
x
42
x
.65
(decad.)
.47
x
.68
.33
x
x
x
x
x
x
x
.23
.47
x
x
.18
x
.32
1500s (ann.}
.78
.59
1.13
1.18
x
x
x
x
x
x
x
.60
1.75
1.86
x
.42
.96
.62
(decad.)
.85
.69
.65
.67
x
x
x
x
x
x
x
.37
.56
.74
x
.17
.23
.14
1600s (ann.)
.89
.71
1.27
1.43
.45
.32
.31
.63
.22
x
x
.69
1.63
1.80
1.12
.50
.56
.66
(decad.)
.50
.64
.59
.47
.30
.41
.21
.42
.25
x
x
.43
.53
.66
.49
.14
.14
.19
1700s (ann.)
.84
.62
1.05
1.36
.42
.31
.25
.53
.23
1.81
.98
.74
1.85
2.01
1.11
.49
.53
.65
(decad.)
.96
.27
.87
.54
.21
.26
.14
.20
.34
.77
.25
.43
.40
.70
.55
.22
.18
.28
1800s (ann.)
.97
.78
1.25
1.21
.52
.35
.29
.54
.21
1.89
1.18
.84
1.64
1.67
1.10
.45
.53
.75
(decad.)
1.07
.55
.62
.77
.26
.29
.21
.23
.26
.31
.50
.35
.95
.96
.29
.17
.18
.38
1900s (ann.)
1.51
1.02
1.38
1.67
.51
.33
.29
.53
.27
1.67
1.14
.71
1.78
1.24
1.28
.45
.62
.76
(decad.)
.52
.49
.72
.44
.30
.33
.23
.23
.27
.53
.35
.27
.68
1.10
.59
.21
.22
0.33
TABLE 3 Long-term Means of Interannual and Interdecadal Variability for 18 Temperature Indices (index sources identified in Table 1)
