AMOC Stabilization Under the Interaction With Tipping Polar Ice Sheets

S. Sinet; A. S. von der Heydt; H. A. Dijkstra

doi:10.1029/2022GL100305

AMOC Stabilization Under the Interaction With Tipping Polar Ice Sheets

S. Sinet, A. S. von der Heydt, H. A. Dijkstra

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

Several large-scale components of the climate system may undergo a rapid transition as critical conditions are exceeded. These tipping elements are also dynamically coupled, allowing for a global domino effect under global warming. Here we focus on such cascading events involving the Greenland Ice Sheet (GIS), the West Antarctica Ice Sheet (WAIS) and the Atlantic Meridional Overturning Circulation (AMOC). Using a conceptual model, we study the combined tipping behavior due to three dominant feedbacks: the marine ice sheet instability for the WAIS, the height-surface mass balance feedback for the GIS and the salt-advection feedback for the AMOC. We show that, in a realistic parameter range of the model, a tipping of the WAIS can inhibit cascading events by preserving the AMOC stability.

Original language	English
Article number	e2022GL100305
Pages (from-to)	1-9
Number of pages	9
Journal	Geophysical Research Letters
Volume	50
Issue number	2
DOIs	https://doi.org/10.1029/2022GL100305
Publication status	Published - 28 Jan 2023

Bibliographical note

Funding Information:
This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska‐Curie Grant Agreement No. 956170 (CriticalEarth). We thank V. Lucarini for helpful discussions. Finally, we thank the reviewers for their constructive and helpful comments.

Funding Information:
This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 956170 (CriticalEarth). We thank V. Lucarini for helpful discussions. Finally, we thank the reviewers for their constructive and helpful comments.

Publisher Copyright:
© 2023 The Authors.

Funding

This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska‐Curie Grant Agreement No. 956170 (CriticalEarth). We thank V. Lucarini for helpful discussions. Finally, we thank the reviewers for their constructive and helpful comments. This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 956170 (CriticalEarth). We thank V. Lucarini for helpful discussions. Finally, we thank the reviewers for their constructive and helpful comments.

Funders	Funder number
H2020 Marie Skłodowska-Curie Actions
Horizon 2020	956170

Keywords

AMOC
GIS
WAIS
domino effect
tipping
tipping cascade

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1029/2022GL100305Licence: CC BY-NC

Geophysical Research Letters - 2023 - Sinet - AMOC Stabilization Under the Interaction With Tipping Polar Ice SheetsFinal published version, 385 KBLicence: CC BY-NC

Cite this

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abstract = "Several large-scale components of the climate system may undergo a rapid transition as critical conditions are exceeded. These tipping elements are also dynamically coupled, allowing for a global domino effect under global warming. Here we focus on such cascading events involving the Greenland Ice Sheet (GIS), the West Antarctica Ice Sheet (WAIS) and the Atlantic Meridional Overturning Circulation (AMOC). Using a conceptual model, we study the combined tipping behavior due to three dominant feedbacks: the marine ice sheet instability for the WAIS, the height-surface mass balance feedback for the GIS and the salt-advection feedback for the AMOC. We show that, in a realistic parameter range of the model, a tipping of the WAIS can inhibit cascading events by preserving the AMOC stability.",

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AMOC Stabilization Under the Interaction With Tipping Polar Ice Sheets

Abstract

Bibliographical note

Funding

Keywords

UN SDGs

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