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Semi-empirical estimation of the climate sensitivity

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Semi-empirical estimation of the climate sensitivity. Torben Schmith. DMI. Str lingsbudget ... IPCC: 2.1-4.4 K (for 2xCO2) Global Climate Model studies. Paleo ... – PowerPoint PPT presentation

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Title: Semi-empirical estimation of the climate sensitivity


1
Semi-empirical estimation of the climate
sensitivity
  • Torben Schmith
  • DMI

2
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Strålingsbudget
6
Global Climate Modelling
7
Earth System Modelling
8
2xCO2 klimascenario
9
Feedbacks (selection)
  • Boltzmann feedback (-)
  • Water vapour feedback ()
  • Ice-albedo feedback (-)
  • Cloud feedback (?)

10
Bestemmelse af klimasensitivitet
  • IPCC 2.1-4.4 K (for 2xCO2)
  • Global Climate Model studies
  • Paleo-studies (LGM, MCM)
  • Instrumental data (few studies only)

11
Energibalancemodel
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Myhre et al. data
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Myhre et al. data
15
ECHO-G
2.6 K (Roeckner et al. (1999)
16
  • Cointegrated VAR approach
  • Model identification
  • Model estimation
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