Articles | Volume 11, issue 12
https://doi.org/10.5194/cp-11-1801-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/cp-11-1801-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
21 Dec 2015
Research article |
| 21 Dec 2015
On the state dependency of the equilibrium climate sensitivity during the last 5 million years
P. Köhler
Alfred-Wegener-Institut Helmholtz-Zentrum für Polar-und Meeresforschung (AWI), P.O. Box 12 01 61, 27515 Bremerhaven, Germany
B. de Boer
Institute for Marine and Atmospheric Research Utrecht (IMAU), Utrecht University, Princetonplein 5, 3584 CC Utrecht, the Netherlands
Department of Earth Sciences, Faculty of Geosciences, Utrecht University, Budapestlaan 4, 3584 CD Utrecht, the Netherlands
now at: School of Earth and Environment, University of Leeds, Leeds, UK
A. S. von der Heydt
Institute for Marine and Atmospheric Research Utrecht (IMAU), Utrecht University, Princetonplein 5, 3584 CC Utrecht, the Netherlands
L. B. Stap
Institute for Marine and Atmospheric Research Utrecht (IMAU), Utrecht University, Princetonplein 5, 3584 CC Utrecht, the Netherlands
R. S. W. van de Wal
Institute for Marine and Atmospheric Research Utrecht (IMAU), Utrecht University, Princetonplein 5, 3584 CC Utrecht, the Netherlands
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38 citations as recorded by crossref.
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- Revised estimates of paleoclimate sensitivity over the past 800,000 years C. Snyder 10.1007/s10584-019-02536-0
- A State‐Dependent Quantification of Climate Sensitivity Based on Paleodata of the Last 2.1 Million Years P. Köhler et al. 10.1002/2017PA003190
- Earth’s Climate History from 4.5 Billion Years to One Minute J. Lin & T. Qian 10.1080/07055900.2022.2082914
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- An Assessment of Earth's Climate Sensitivity Using Multiple Lines of Evidence S. Sherwood et al. 10.1029/2019RG000678
- Global and regional temperature change over the past 4.5 million years P. Clark et al. 10.1126/science.adi1908
- Differences between the last two glacial maxima and implications for ice-sheet, δ18O, and sea-level reconstructions E. Rohling et al. 10.1016/j.quascirev.2017.09.009
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- The influence of ice sheets on temperature during the past 38 million years inferred from a one-dimensional ice sheet–climate model L. Stap et al. 10.5194/cp-13-1243-2017
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- Assessment of long-chain n-alkanes as a paleoclimate proxy in the Bering Sea sediments O. Seki et al. 10.1016/j.pocean.2021.102687
- Last Glacial Maximum pattern effects reduce climate sensitivity estimates V. Cooper et al. 10.1126/sciadv.adk9461
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36 citations as recorded by crossref.
- Including the efficacy of land ice changes in deriving climate sensitivity from paleodata L. Stap et al. 10.5194/esd-10-333-2019
- Ocean temperatures through the Phanerozoic reassessed E. Grossman & M. Joachimski 10.1038/s41598-022-11493-1
- Revised estimates of paleoclimate sensitivity over the past 800,000 years C. Snyder 10.1007/s10584-019-02536-0
- A State‐Dependent Quantification of Climate Sensitivity Based on Paleodata of the Last 2.1 Million Years P. Köhler et al. 10.1002/2017PA003190
- Earth’s Climate History from 4.5 Billion Years to One Minute J. Lin & T. Qian 10.1080/07055900.2022.2082914
- Lessons on Climate Sensitivity From Past Climate Changes A. von der Heydt et al. 10.1007/s40641-016-0049-3
- Climate variability, heat distribution, and polar amplification in the warm unipolar “icehouse” of the Oligocene D. Jenny et al. 10.5194/cp-20-1627-2024
- Climate Sensitivity in the Geologic Past D. Royer 10.1146/annurev-earth-100815-024150
- Nonlinear climate sensitivity and its implications for future greenhouse warming T. Friedrich et al. 10.1126/sciadv.1501923
- State-dependent impact of major volcanic eruptions observed in ice-core records of the last glacial period J. Lohmann et al. 10.5194/cp-20-313-2024
- The Transient Response of Ice Volume to Orbital Forcing During the Warm Late Pliocene B. de Boer et al. 10.1002/2017GL073535
- State dependency of the forest-tundra-short wave feedback: comparing the mid-Pliocene and pre-industrial eras P. Paiewonsky et al. 10.1007/s00382-022-06474-z
- Interglacials of the Quaternary defined by northern hemispheric land ice distribution outside of Greenland P. Köhler & R. van de Wal 10.1038/s41467-020-18897-5
- Robust Constraints on Past CO2 Climate Forcing From the Boron Isotope Proxy M. Hain et al. 10.1029/2018PA003362
- State‐Dependence of the Climate Sensitivity in Earth System Models of Intermediate Complexity P. Pfister & T. Stocker 10.1002/2017GL075457
- An Assessment of Earth's Climate Sensitivity Using Multiple Lines of Evidence S. Sherwood et al. 10.1029/2019RG000678
- Global and regional temperature change over the past 4.5 million years P. Clark et al. 10.1126/science.adi1908
- Differences between the last two glacial maxima and implications for ice-sheet, δ18O, and sea-level reconstructions E. Rohling et al. 10.1016/j.quascirev.2017.09.009
- Early Pleistocene Obliquity‐Scale pCO2 Variability at ~1.5 Million Years Ago K. Dyez et al. 10.1029/2018PA003349
- Using Late Pleistocene sea surface temperature reconstructions to constrain future greenhouse warming T. Friedrich & A. Timmermann 10.1016/j.epsl.2019.115911
- Comparing Climate Sensitivity, Past and Present E. Rohling et al. 10.1146/annurev-marine-121916-063242
- Beyond equilibrium climate sensitivity R. Knutti et al. 10.1038/ngeo3017
- Contributions of aerosol‐cloud interactions to mid‐Piacenzian seasonally sea ice‐free Arctic Ocean R. Feng et al. 10.1029/2019GL083960
- Extreme Sensitivity and Climate Tipping Points P. Ashwin & A. von der Heydt 10.1007/s10955-019-02425-x
- Increasingly Sophisticated Climate Models Need the Out‐Of‐Sample Tests Paleoclimates Provide N. Burls & N. Sagoo 10.1029/2022MS003389
- State dependence of climate sensitivity: attractor constraints and palaeoclimate regimes A. von der Heydt & P. Ashwin 10.1093/climsys/dzx001
- In and out of glacial extremes by way of dust−climate feedbacks G. Shaffer & F. Lambert 10.1073/pnas.1708174115
- Alternative climatic steady states near the Permian–Triassic Boundary C. Ragon et al. 10.1038/s41598-024-76432-8
- Late Miocene cooling coupled to carbon dioxide with Pleistocene-like climate sensitivity R. Brown et al. 10.1038/s41561-022-00982-7
- Modest global-scale cooling despite extensive early Pleistocene ice sheets J. Shakun 10.1016/j.quascirev.2017.04.010
- Atmospheric CO2 Concentration Based on Boron Isotopes Versus Simulations of the Global Carbon Cycle During the Plio‐Pleistocene P. Köhler 10.1029/2022PA004439
- The influence of ice sheets on temperature during the past 38 million years inferred from a one-dimensional ice sheet–climate model L. Stap et al. 10.5194/cp-13-1243-2017
- Modeled Influence of Land Ice and CO2on Polar Amplification and Paleoclimate Sensitivity During the Past 5 Million Years L. Stap et al. 10.1002/2017PA003313
- Assessment of long-chain n-alkanes as a paleoclimate proxy in the Bering Sea sediments O. Seki et al. 10.1016/j.pocean.2021.102687
- Last Glacial Maximum pattern effects reduce climate sensitivity estimates V. Cooper et al. 10.1126/sciadv.adk9461
- The Effect of Obliquity‐Driven Changes on Paleoclimate Sensitivity During the Late Pleistocene P. Köhler et al. 10.1029/2018GL077717
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Latest update: 02 Apr 2025
Short summary
We find that the specific equilibrium climate sensitivity due to radiative forcing of CO2 and land ice albedo has been state-dependent for the last 2.1Myr (most of the Pleistocene). Its value is ~45% larger during intermediate glaciated climates and interglacial periods than during Pleistocene full glacial conditions. The state dependency is mainly caused by a latitudinal dependency in ice sheet area changes. Due to uncertainties in CO2, firm conclusions for the Pliocene are not yet possible.
We find that the specific equilibrium climate sensitivity due to radiative forcing of CO2 and...
