Impacts of regional sea ice loss – a global response

Climate model studies have shown a wide range of responses in the northern hemisphere to reduced sea ice loss in the Arctic. The most robust is the thermodynamic response with local warming in the region of the sea ice loss. Many studies also find a shift in the tropospheric jet towards the equator...

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Main Authors: Eade, Rosemary, Smith, Doug, Hermanson, Leon, Dunstone, Nick
Format: Still Image
Language:unknown
Published: Zenodo 2019
Subjects:
Online Access:https://dx.doi.org/10.5281/zenodo.3565525
https://zenodo.org/record/3565525
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spelling ftdatacite:10.5281/zenodo.3565525 2023-05-15T13:53:31+02:00 Impacts of regional sea ice loss – a global response Eade, Rosemary Smith, Doug Hermanson, Leon Dunstone, Nick 2019 https://dx.doi.org/10.5281/zenodo.3565525 https://zenodo.org/record/3565525 unknown Zenodo https://zenodo.org/communities/applicate https://dx.doi.org/10.5281/zenodo.3565526 https://dx.doi.org/10.5281/zenodo.3565538 https://zenodo.org/communities/applicate Open Access Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 info:eu-repo/semantics/openAccess CC-BY Text Poster article-journal ScholarlyArticle 2019 ftdatacite https://doi.org/10.5281/zenodo.3565525 https://doi.org/10.5281/zenodo.3565526 https://doi.org/10.5281/zenodo.3565538 2021-11-05T12:55:41Z Climate model studies have shown a wide range of responses in the northern hemisphere to reduced sea ice loss in the Arctic. The most robust is the thermodynamic response with local warming in the region of the sea ice loss. Many studies also find a shift in the tropospheric jet towards the equator and a tendency towards the negative phase of the North Atlantic Oscillation. However, these mid-latitude dynamic responses seem somewhat dependent on the extent and location of sea ice loss as well as model differences. We use new atmosphere-only experiments from the Polar-Amplification-MIP of CMIP6 to further explain how the dynamic responses in the atmosphere relate to the pattern of sea ice loss in the Arctic on multi-decadal time-scales. We find exciting new results that suggest that Arctic sea ice loss can also impact the southern hemisphere, while Antarctic sea ice loss can impact the northern hemisphere, and we propose possible atmospheric mechanisms to explain this linkage. We also highlight the importance of large ensembles to differentiate between robust responses and atmospheric noise. Still Image Antarc* Antarctic Arctic North Atlantic North Atlantic oscillation Sea ice DataCite Metadata Store (German National Library of Science and Technology) Antarctic Arctic
institution Open Polar
collection DataCite Metadata Store (German National Library of Science and Technology)
op_collection_id ftdatacite
language unknown
description Climate model studies have shown a wide range of responses in the northern hemisphere to reduced sea ice loss in the Arctic. The most robust is the thermodynamic response with local warming in the region of the sea ice loss. Many studies also find a shift in the tropospheric jet towards the equator and a tendency towards the negative phase of the North Atlantic Oscillation. However, these mid-latitude dynamic responses seem somewhat dependent on the extent and location of sea ice loss as well as model differences. We use new atmosphere-only experiments from the Polar-Amplification-MIP of CMIP6 to further explain how the dynamic responses in the atmosphere relate to the pattern of sea ice loss in the Arctic on multi-decadal time-scales. We find exciting new results that suggest that Arctic sea ice loss can also impact the southern hemisphere, while Antarctic sea ice loss can impact the northern hemisphere, and we propose possible atmospheric mechanisms to explain this linkage. We also highlight the importance of large ensembles to differentiate between robust responses and atmospheric noise.
format Still Image
author Eade, Rosemary
Smith, Doug
Hermanson, Leon
Dunstone, Nick
spellingShingle Eade, Rosemary
Smith, Doug
Hermanson, Leon
Dunstone, Nick
Impacts of regional sea ice loss – a global response
author_facet Eade, Rosemary
Smith, Doug
Hermanson, Leon
Dunstone, Nick
author_sort Eade, Rosemary
title Impacts of regional sea ice loss – a global response
title_short Impacts of regional sea ice loss – a global response
title_full Impacts of regional sea ice loss – a global response
title_fullStr Impacts of regional sea ice loss – a global response
title_full_unstemmed Impacts of regional sea ice loss – a global response
title_sort impacts of regional sea ice loss – a global response
publisher Zenodo
publishDate 2019
url https://dx.doi.org/10.5281/zenodo.3565525
https://zenodo.org/record/3565525
geographic Antarctic
Arctic
geographic_facet Antarctic
Arctic
genre Antarc*
Antarctic
Arctic
North Atlantic
North Atlantic oscillation
Sea ice
genre_facet Antarc*
Antarctic
Arctic
North Atlantic
North Atlantic oscillation
Sea ice
op_relation https://zenodo.org/communities/applicate
https://dx.doi.org/10.5281/zenodo.3565526
https://dx.doi.org/10.5281/zenodo.3565538
https://zenodo.org/communities/applicate
op_rights Open Access
Creative Commons Attribution 4.0 International
https://creativecommons.org/licenses/by/4.0/legalcode
cc-by-4.0
info:eu-repo/semantics/openAccess
op_rightsnorm CC-BY
op_doi https://doi.org/10.5281/zenodo.3565525
https://doi.org/10.5281/zenodo.3565526
https://doi.org/10.5281/zenodo.3565538
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