Sensitivity of the Antarctic ice sheets to the  warming of marine isotope substage 11c

Mas e Braga, Martim; Bernales, Jorge; Prange, Matthias; Stroeven, Arjen P.; Rogozhina, Irina

doi:https://doi.org/10.5194/tc-15-459-2021

Articles | Volume 15, issue 1

https://doi.org/10.5194/tc-15-459-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/tc-15-459-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 15, issue 1

Research article

|

28 Jan 2021

Research article |

| 28 Jan 2021

Sensitivity of the Antarctic ice sheets to the warming of marine isotope substage 11c

Martim Mas e Braga, Jorge Bernales, Matthias Prange, Arjen P. Stroeven, and Irina Rogozhina

Supplement

https://doi.org/10.5194/tc-15-459-2021-supplement

Data sets

martimmas/MIS11c_exps: MIS11c experiments (version 1.0) M. Mas e Braga https://doi.org/10.5281/zenodo.4471206

Model code and software

Ice sheet model SICOPOLIS R. Greve http://sicopolis.net/

Short summary

We combine a computer model with different climate records to simulate how Antarctica responded to warming during marine isotope substage 11c, which can help understand Antarctica's natural drivers of change. We found that the regional climate warming of Antarctica seen in ice cores was necessary for the model to match the recorded sea level rise. A collapse of its western ice sheet is possible if a modest warming is sustained for ca. 4000 years, contributing 6.7 to 8.2 m to sea level rise.