Quantifying the role of ocean coupling in Arctic amplification and sea-ice loss over the 21st century
Abstract The enhanced warming of the Arctic, relative to other parts of the Earth, a phenomenon known as Arctic amplification, is one of the most striking features of climate change, and has important climatic impacts for the entire Northern Hemisphere. Several mechanisms are believed to be responsi...
Published in: | npj Climate and Atmospheric Science |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Nature Portfolio
2021
|
Subjects: | |
Online Access: | https://doi.org/10.1038/s41612-021-00204-8 https://doaj.org/article/61048e2ffade48e78ba570dc1492ca84 |
id |
fttriple:oai:gotriple.eu:oai:doaj.org/article:61048e2ffade48e78ba570dc1492ca84 |
---|---|
record_format |
openpolar |
spelling |
fttriple:oai:gotriple.eu:oai:doaj.org/article:61048e2ffade48e78ba570dc1492ca84 2023-05-15T14:33:55+02:00 Quantifying the role of ocean coupling in Arctic amplification and sea-ice loss over the 21st century Rei Chemke Lorenzo M. Polvani Jennifer E. Kay Clara Orbe 2021-10-01 https://doi.org/10.1038/s41612-021-00204-8 https://doaj.org/article/61048e2ffade48e78ba570dc1492ca84 en eng Nature Portfolio doi:10.1038/s41612-021-00204-8 2397-3722 https://doaj.org/article/61048e2ffade48e78ba570dc1492ca84 undefined npj Climate and Atmospheric Science, Vol 4, Iss 1, Pp 1-9 (2021) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2021 fttriple https://doi.org/10.1038/s41612-021-00204-8 2023-01-22T19:23:44Z Abstract The enhanced warming of the Arctic, relative to other parts of the Earth, a phenomenon known as Arctic amplification, is one of the most striking features of climate change, and has important climatic impacts for the entire Northern Hemisphere. Several mechanisms are believed to be responsible for Arctic amplification; however, a quantitative understanding of their relative importance is still missing. Here, using ensembles of model integrations, we quantify the contribution of ocean coupling, both its thermodynamic and dynamic components, to Arctic amplification over the 20th and 21st centuries. We show that ocean coupling accounts for ~80% of the amplification by 2100. In particular, we show that thermodynamic coupling is responsible for future amplification and sea-ice loss as it overcomes the effect of dynamic coupling which reduces the amplification and sea-ice loss by ~35%. Our results demonstrate the utility of targeted numerical experiments to quantify the role of specific mechanisms in Arctic amplification, for better constraining climate projections. Article in Journal/Newspaper Arctic Climate change Sea ice Unknown Arctic npj Climate and Atmospheric Science 4 1 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
geo envir |
spellingShingle |
geo envir Rei Chemke Lorenzo M. Polvani Jennifer E. Kay Clara Orbe Quantifying the role of ocean coupling in Arctic amplification and sea-ice loss over the 21st century |
topic_facet |
geo envir |
description |
Abstract The enhanced warming of the Arctic, relative to other parts of the Earth, a phenomenon known as Arctic amplification, is one of the most striking features of climate change, and has important climatic impacts for the entire Northern Hemisphere. Several mechanisms are believed to be responsible for Arctic amplification; however, a quantitative understanding of their relative importance is still missing. Here, using ensembles of model integrations, we quantify the contribution of ocean coupling, both its thermodynamic and dynamic components, to Arctic amplification over the 20th and 21st centuries. We show that ocean coupling accounts for ~80% of the amplification by 2100. In particular, we show that thermodynamic coupling is responsible for future amplification and sea-ice loss as it overcomes the effect of dynamic coupling which reduces the amplification and sea-ice loss by ~35%. Our results demonstrate the utility of targeted numerical experiments to quantify the role of specific mechanisms in Arctic amplification, for better constraining climate projections. |
format |
Article in Journal/Newspaper |
author |
Rei Chemke Lorenzo M. Polvani Jennifer E. Kay Clara Orbe |
author_facet |
Rei Chemke Lorenzo M. Polvani Jennifer E. Kay Clara Orbe |
author_sort |
Rei Chemke |
title |
Quantifying the role of ocean coupling in Arctic amplification and sea-ice loss over the 21st century |
title_short |
Quantifying the role of ocean coupling in Arctic amplification and sea-ice loss over the 21st century |
title_full |
Quantifying the role of ocean coupling in Arctic amplification and sea-ice loss over the 21st century |
title_fullStr |
Quantifying the role of ocean coupling in Arctic amplification and sea-ice loss over the 21st century |
title_full_unstemmed |
Quantifying the role of ocean coupling in Arctic amplification and sea-ice loss over the 21st century |
title_sort |
quantifying the role of ocean coupling in arctic amplification and sea-ice loss over the 21st century |
publisher |
Nature Portfolio |
publishDate |
2021 |
url |
https://doi.org/10.1038/s41612-021-00204-8 https://doaj.org/article/61048e2ffade48e78ba570dc1492ca84 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change Sea ice |
genre_facet |
Arctic Climate change Sea ice |
op_source |
npj Climate and Atmospheric Science, Vol 4, Iss 1, Pp 1-9 (2021) |
op_relation |
doi:10.1038/s41612-021-00204-8 2397-3722 https://doaj.org/article/61048e2ffade48e78ba570dc1492ca84 |
op_rights |
undefined |
op_doi |
https://doi.org/10.1038/s41612-021-00204-8 |
container_title |
npj Climate and Atmospheric Science |
container_volume |
4 |
container_issue |
1 |
_version_ |
1766307084814516224 |