Including the efficacy of land ice changes in deriving climate sensitivity from paleodata

Stap, Lennert B.; Köhler, Peter; Lohmann, Gerrit

doi:https://doi.org/10.5194/esd-10-333-2019

Articles | Volume 10, issue 2

https://doi.org/10.5194/esd-10-333-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/esd-10-333-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 10, issue 2

Research article

| Highlight paper

|

14 Jun 2019

Research article | Highlight paper |

| 14 Jun 2019

Including the efficacy of land ice changes in deriving climate sensitivity from paleodata

Lennert B. Stap, Peter Köhler, and Gerrit Lohmann

Data sets

L. B. Stap, R. S. W. van de Wal, B. de Boer, P. Köhler, J. H. Hoencamp, G. Lohmann, E. Tuenter, and L. J. Lourens Simulation of northern hemispheric, southern hemispheric and global temperature over the past 5 million years https://doi.org/10.1594/PANGAEA.887427

Model-based changes in global annual mean surface temperature change (Delta T_g) and radiative forcing due to land ice albedo changes (Delta R_[LI]) over the last 5 Myr, supplementary material P. Köhler, B. de Boer, A. S. von der Heydt, L. B. Stap, and R. S. W. van de Wal https://doi.org/10.1594/PANGAEA.855449

Short summary

Processes causing the same global-average radiative forcing might lead to different global temperature changes. We expand the theoretical framework by which we calculate paleoclimate sensitivity with an efficacy factor. Applying the revised approach to radiative forcing caused by CO₂ and land ice albedo perturbations, inferred from data of the past 800 000 years, gives a new paleo-based estimate of climate sensitivity.