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Constraint on sensitivity to solar irradiance
We now identify, under the constraint of the sensitivity assumed
by the IPCC, related to solar irradiance:
In this way,
we can obtain the following set of parameters, and the simulations in
Figure 7.5.
S
<
1. 6 2
°
C
/
W m
−
2
.
2
S
irr
(
°C/Wm
-2
)
S
irr11
(
°C/Wm
-2
)
S
clim
(
°C
)
S
vol
(
°C
)
T
clim
(
an
)
T
E
(
°C
)
Free
model
1.28
17.5
10.7
90.0
0.90
0.027
Forced
model
3.92
1.62
21.1
97.9
0.05
-0.020
Anthropic contribution
Constrained model simulation
0.5
Ljungqvist
0.5
0
0
-0.5
1000
1500
2000
TSI c ontr ibution
-0.5
1000
1500
2000
0.5
0
Ouput error
-0.5
1000
1500
2000
0.5
Volcanic contribution
0
0.5
0
-0.5
-0.5
1000
1500
2000
1000
1500
2000
Figure 7.5.
Simulation forced model
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