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- Title
Technical Note: Calculating state dependent equilibrium climate sensitivity from palaeodata.
- Authors
Köhler, Peter; Stap, Lennert. B.; von der Heydt, Anna S.; de Boer, Bas; van de Wal, Rorderik S. W.
- Abstract
The evidence from both data and models indicate that specific equilibrium climate sensitivity S[X] - the global annual mean surface temperature change (ΔTg) as a response to a change in radiative forcing X (ΔR[X]) - is state dependent. Such a state dependency implies that the best fit in the scatter plot of ΔTg versus ΔR[X] is not a linear regression, but for instance a higher order polynomial. While for the conventional linear case the slope (gradient) of the regression is correctly interpreted as the specific equilibrium climate sensitivity S[X], the interpretation is not straightforward in the non-linear case. We here elaborate how such a state dependent scatter plot needs to be interpreted, and provide a theoretical understanding how to calculate S[X] in the non-linear case.
- Subjects
CLIMATE sensitivity; RADIATIVE forcing; GLOBAL temperature changes; PALEOCLIMATOLOGY; SCATTER diagrams; REGRESSION analysis
- Publication
Climate of the Past Discussions, 2016, Vol 12, Issue 2, p1
- ISSN
1814-9324
- Publication type
Article
- DOI
10.5194/cp-2016-23