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Semi-empirical estimation of the climate sensitivity

Explore Torben Schmith's method of estimating climate sensitivity using semi-empirical approaches, including feedback mechanisms like Boltzmann, water vapor, ice-albedo, and cloud. This study delves into global climate modeling and Earth system modeling to determine climate sensitivity. Learn about the IPCC's range of 2.1-4.4 K for 2xCO2 scenarios and how paleo-studies and instrumental data contribute to our understanding. The research utilizes energy balance models, Myhre et al. data, ECHO-G model results, and the Cointegrated VAR approach for model identification and estimation.

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Semi-empirical estimation of the climate sensitivity

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

  2. Strålingsbudget

  3. Global Climate Modelling

  4. Earth System Modelling

  5. 2xCO2 klimascenario

  6. Feedbacks (selection) • Boltzmann feedback (-) • Water vapour feedback (+) • Ice-albedo feedback (-) • Cloud feedback (?)

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

  8. Energibalancemodel

  9. Myhre et al. data

  10. Myhre et al. data

  11. ECHO-G 2.6 K (Roeckner et al. (1999)

  12. Cointegrated VAR approach • Model identification • Model estimation

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