Climate of the Past
Climate of the Past
CP
Articles | Volume 19, issue 2
Articles | Volume 19, issue 2
https://doi.org/10.5194/cp-19-399-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-19-399-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 2
Research article
 | 
08 Feb 2023
Research article |  | 08 Feb 2023

Modelling feedbacks between the Northern Hemisphere ice sheets and climate during the last glacial cycle

Meike D. W. Scherrenberg, Constantijn J. Berends, Lennert B. Stap, and Roderik S. W. van de Wal

Supplement

https://doi.org/10.5194/cp-19-399-2023-supplement

Data sets

Scherrenberg et al., 2023 last glacial cycle ice sheet model output [Data set] M. D. W. Scherrenberg, C. J. Berends, R. S. W. van de Wal, and L. B. Stap https://doi.org/10.5281/zenodo.7463248

Model code and software

Scherrenberg et al., 2023 IMAU-ICE version~2.0 model code and scripts for making figures M. D. W. Scherrenberg, C. J. Berends, L. B. Stap, and R. S. W. van de Wal https://doi.org/10.5281/zenodo.7463260

IMAU-paleo/IMAU-ICE M. D. W. Scherrenberg https://github.com/IMAU-paleo/IMAU-ICE/tree/Last_Glacial_Cycle_PMIP3

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Short summary
Ice sheets have a large effect on climate and vice versa. Here we use an ice sheet computer model to simulate the last glacial cycle and compare two methods, one that implicitly includes these feedbacks and one that does not. We found that when including simple climate feedbacks, the North American ice sheet develops from two domes instead of many small domes. Each ice sheet melts slower when including feedbacks. We attribute this difference mostly to air temperature–ice sheet interactions.
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