The impact of Arctic sea ice loss on mid-Holocene climate
Mid-Holocene climate was characterized by strong summer solar heating that decreased Arctic sea ice cover. Motivated by recent studies identifying Arctic sea ice loss as a key driver of future climate change, we separate the influences of Arctic sea ice loss on mid-Holocene climate. By performing id...
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ftcdlib:oai:escholarship.org:ark:/13030/qt3s876554 2023-11-05T03:38:14+01:00 The impact of Arctic sea ice loss on mid-Holocene climate Park, Hyo-Seok Kim, Seong-Joong Seo, Kyong-Hwan Stewart, Andrew L Kim, Seo-Yeon Son, Seok-Woo 4571 2018-01-01 application/pdf https://escholarship.org/uc/item/3s876554 unknown eScholarship, University of California qt3s876554 https://escholarship.org/uc/item/3s876554 public Nature Communications, vol 9, iss 1 Earth Sciences Oceanography Physical Geography and Environmental Geoscience Climate Action article 2018 ftcdlib 2023-10-09T18:07:44Z Mid-Holocene climate was characterized by strong summer solar heating that decreased Arctic sea ice cover. Motivated by recent studies identifying Arctic sea ice loss as a key driver of future climate change, we separate the influences of Arctic sea ice loss on mid-Holocene climate. By performing idealized climate model perturbation experiments, we show that Arctic sea ice loss causes zonally asymmetric surface temperature responses especially in winter: sea ice loss warms North America and the North Pacific, which would otherwise be much colder due to weaker winter insolation. In contrast, over East Asia, sea ice loss slightly decreases the temperature in early winter. These temperature responses are associated with the weakening of mid-high latitude westerlies and polar stratospheric warming. Sea ice loss also weakens the Atlantic meridional overturning circulation, although this weakening signal diminishes after 150-200 years of model integration. These results suggest that mid-Holocene climate changes should be interpreted in terms of both Arctic sea ice cover and insolation forcing. Article in Journal/Newspaper Arctic Climate change Sea ice University of California: eScholarship |
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Open Polar |
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University of California: eScholarship |
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topic |
Earth Sciences Oceanography Physical Geography and Environmental Geoscience Climate Action |
spellingShingle |
Earth Sciences Oceanography Physical Geography and Environmental Geoscience Climate Action Park, Hyo-Seok Kim, Seong-Joong Seo, Kyong-Hwan Stewart, Andrew L Kim, Seo-Yeon Son, Seok-Woo The impact of Arctic sea ice loss on mid-Holocene climate |
topic_facet |
Earth Sciences Oceanography Physical Geography and Environmental Geoscience Climate Action |
description |
Mid-Holocene climate was characterized by strong summer solar heating that decreased Arctic sea ice cover. Motivated by recent studies identifying Arctic sea ice loss as a key driver of future climate change, we separate the influences of Arctic sea ice loss on mid-Holocene climate. By performing idealized climate model perturbation experiments, we show that Arctic sea ice loss causes zonally asymmetric surface temperature responses especially in winter: sea ice loss warms North America and the North Pacific, which would otherwise be much colder due to weaker winter insolation. In contrast, over East Asia, sea ice loss slightly decreases the temperature in early winter. These temperature responses are associated with the weakening of mid-high latitude westerlies and polar stratospheric warming. Sea ice loss also weakens the Atlantic meridional overturning circulation, although this weakening signal diminishes after 150-200 years of model integration. These results suggest that mid-Holocene climate changes should be interpreted in terms of both Arctic sea ice cover and insolation forcing. |
format |
Article in Journal/Newspaper |
author |
Park, Hyo-Seok Kim, Seong-Joong Seo, Kyong-Hwan Stewart, Andrew L Kim, Seo-Yeon Son, Seok-Woo |
author_facet |
Park, Hyo-Seok Kim, Seong-Joong Seo, Kyong-Hwan Stewart, Andrew L Kim, Seo-Yeon Son, Seok-Woo |
author_sort |
Park, Hyo-Seok |
title |
The impact of Arctic sea ice loss on mid-Holocene climate |
title_short |
The impact of Arctic sea ice loss on mid-Holocene climate |
title_full |
The impact of Arctic sea ice loss on mid-Holocene climate |
title_fullStr |
The impact of Arctic sea ice loss on mid-Holocene climate |
title_full_unstemmed |
The impact of Arctic sea ice loss on mid-Holocene climate |
title_sort |
impact of arctic sea ice loss on mid-holocene climate |
publisher |
eScholarship, University of California |
publishDate |
2018 |
url |
https://escholarship.org/uc/item/3s876554 |
op_coverage |
4571 |
genre |
Arctic Climate change Sea ice |
genre_facet |
Arctic Climate change Sea ice |
op_source |
Nature Communications, vol 9, iss 1 |
op_relation |
qt3s876554 https://escholarship.org/uc/item/3s876554 |
op_rights |
public |
_version_ |
1781693902632255488 |