an investigation into the mechanisms of
TRANSCRIPT
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An investigation into the mechanisms of
changes in mid-latitude storm tracks as
greenhouse gases are increased.
Ruth E. Carnell and Catherine A. Senior
Hadley Centre technical notes 18
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1
0
0
0
0
0
0
0
1
2
1
1
23
1
0
1
1
1
1
1
0
56 01
MSLP: PWCON CON
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21.5
1.5
1.5
1.5
20
0.51 1.5
1
2
11.5
2
1.5
1.5
1.5
1
00.50.5
0.5
00
11
1.5
2 2
21
10.5
0.51 1
1.5
0.50
0
21.5
0.5
1
00.5
2
2
1
1.52
SST: GHG CON
180 90W 0 90E 18090S
45S
0
45N
90N
0
0
0
0
0
0.2
0.2
0.4
0
0.2
0
0
Seaice: GHG CON
75 505075
7575
50
50 50 0
5050
0
250255075100
757575
50
50
50
25025
5075
100
50
50
75
0
50
25025
5075
100
25
75
25250
25
75
75
0
0
0
Snow amount: GHG CON
a
b c
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2
2
2
2 1.5
1
2.5
2.5
2.5
2.5
2
2.5
1.5
1
5
10
21.5
2.52
2
1
T 1.5m: PWGHG PWCON
1.5
2
2
2
2
2.52.5
2.5
2.5
2
2.5
2.5
1.5
1.5
1.5
2
1
5
10
12
1.5
2
2
.5
T 1.5m: GHG CON
0
1
1
1
0
0
0
0
1
0
0
2
34
4
1
123
4
5
1
MSLP: PWGHG PWCON
0
0
0
0 0
1
01
1
2
34
1
MSLP: GHG CON
a b
c d
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MSLP: dSBF PWCON
0
1 0
0
0
1
10
23
4
0
0
2
34
5
1
01
1
MSLP: NOSST PWCON
0
0
0
1
0
0
0
1
1
2
34
11
23
0
1
MSLP: dSST PWCON
0
0
0
0
0
0
0
1
1
0
0
1
1
1
1
1
0
1
2
3
1
2345
2
MSLP: dSI PWCON
0
00
0
0
0
0
1 12
1
2
3
0
2 1
a b
c d
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MSLP: GMSST PWCON
0
0
0
0
0
00
0
0
1 2
12
1
1
1
1
2
2
3
4
3
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0
0
0
0
00
0.05
0.1
0.05
0
0.050.05
0.05
Eady parameter on 500hPa:GMSST PWCON
0.5
0.5
0.500
00.5
0.5 1
11.5
1.52
2
22.5
2.53
3
2.5
2.53
2
2
2 1.51.51 10.50.5
0 0
0.50.5
1 1
3
1
1
Temperature on 200 hPa: GMSST PWCON
180 90W 0 90E 18090S
45S
0
45N
90N
a
b
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Zonal mean 1.5 m temperature
90S60S30S030N60N90NLatitude
0
2
4
6
8
10
GHGCONGHG3CON3
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MSLP: ZMSST PWCON
01
1
0
0
1
1
1
0
0
0
01
1
2
3
4
5
12
0
1
1
1
1
2
2
3
3
4
5
2
0.05
0
0
00
0
0
0
0
0
0
0.05
0
0.05
0.05
0.05
00.05
0.1
0.1
0.0
50
0.05
0.
05
0.1
0.05
0.1
0
0.1
0.1
Eady parameter on 500hPa:ZMSST PWCON
a b
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0 0
0
0
00
0
1
1
1
2
1
12
1
1
MSLP: GHG3 CON3
11.5
1.5
2
1
0.50.5
1
12
1
1
1
1.5
1
1 0.51.5 2
1.5
2
000.5
0.50
01
1
0.50.5
11.5
1.5
1
2 1.52
2.52 1.5
1
1.5 2 2
1
2
0
1.5
0
0.51
1
SST: GHG3 CON3
180 90W 0 90E 18090S
45S
0
45N
90N
a
b
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MSLP: CM3SST PWCON
0
0
0
0
0
0
0
0
1
0
0
1
1
2
34
1
2
3
12
1
1
1
12
MSLP: ZM3SST PWCON
1
1
1
1
0
0
0
0
0
1
1
1
1
1
2
0
0
2
1
3
4
4
1
1
a b