Evolution of the global coupled climate response to Arctic sea ice loss during 1990–2090 and its contribution to climate change
The role of transient Arctic sea ice loss in the projected greenhouse gas-induced late-twentieth- to late-twenty-first-century climate change is investigated using the Geophysical Fluid Dynamics Laboratory's Coupled Model version 3. Two sets of simulations have been conducted, one with represen...
Published in: | Journal of Climate |
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Language: | English |
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Online Access: | https://doi.org/10.1175/JCLI-D-18-0134.1 |
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ftncar:oai:drupal-site.org:articles_21898 2023-09-05T13:16:09+02:00 Evolution of the global coupled climate response to Arctic sea ice loss during 1990–2090 and its contribution to climate change Sun, Lantao (author) Alexander, Michael (author) Deser, Clara (author) 2018-10-01 https://doi.org/10.1175/JCLI-D-18-0134.1 en eng Journal of Climate--J. Climate--0894-8755--1520-0442 Sea Ice Index, Version 3--10.7265/N5K072F8 articles:21898 ark:/85065/d7h9982h doi:10.1175/JCLI-D-18-0134.1 Copyright 2018 American Meteorological Society (AMS). article Text 2018 ftncar https://doi.org/10.1175/JCLI-D-18-0134.1 2023-08-14T18:49:05Z The role of transient Arctic sea ice loss in the projected greenhouse gas-induced late-twentieth- to late-twenty-first-century climate change is investigated using the Geophysical Fluid Dynamics Laboratory's Coupled Model version 3. Two sets of simulations have been conducted, one with representative concentration pathway (RCP) 8.5 radiative forcing and the second with RCP forcing but with Arctic sea ice nudged to its 1990 state. The difference between the two five-member sets indicates the influence of decreasing Arctic sea ice on the climate system. Within the Arctic, sea ice loss is found to be a primary driver of the surface temperature and precipitation changes. Arctic sea ice depletion also plays a dominant role in projected Atlantic meridional overturning circulation weakening and changes in North Atlantic extratropical sea surface temperature and salinity, especially in the first half century. The effect of present-day Arctic sea ice loss on Northern Hemisphere (NH) extratropical atmospheric circulation is small relative to internal variability and the future sea ice loss effect on atmospheric circulation is distinct from the projected anthropogenic change. Arctic sea ice loss warms NH extratropical continents and is an important contributor to global warming not only over high latitudes but also in the eastern United States. Last, the Arctic sea ice loss displaces the Pacific intertropical convergence zone (ITCZ) equatorward and induces a mini-global warming in the tropical upper troposphere. Article in Journal/Newspaper Arctic Climate change Global warming North Atlantic Sea ice OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Arctic Pacific Journal of Climate 31 19 7823 7843 |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
description |
The role of transient Arctic sea ice loss in the projected greenhouse gas-induced late-twentieth- to late-twenty-first-century climate change is investigated using the Geophysical Fluid Dynamics Laboratory's Coupled Model version 3. Two sets of simulations have been conducted, one with representative concentration pathway (RCP) 8.5 radiative forcing and the second with RCP forcing but with Arctic sea ice nudged to its 1990 state. The difference between the two five-member sets indicates the influence of decreasing Arctic sea ice on the climate system. Within the Arctic, sea ice loss is found to be a primary driver of the surface temperature and precipitation changes. Arctic sea ice depletion also plays a dominant role in projected Atlantic meridional overturning circulation weakening and changes in North Atlantic extratropical sea surface temperature and salinity, especially in the first half century. The effect of present-day Arctic sea ice loss on Northern Hemisphere (NH) extratropical atmospheric circulation is small relative to internal variability and the future sea ice loss effect on atmospheric circulation is distinct from the projected anthropogenic change. Arctic sea ice loss warms NH extratropical continents and is an important contributor to global warming not only over high latitudes but also in the eastern United States. Last, the Arctic sea ice loss displaces the Pacific intertropical convergence zone (ITCZ) equatorward and induces a mini-global warming in the tropical upper troposphere. |
author2 |
Sun, Lantao (author) Alexander, Michael (author) Deser, Clara (author) |
format |
Article in Journal/Newspaper |
title |
Evolution of the global coupled climate response to Arctic sea ice loss during 1990–2090 and its contribution to climate change |
spellingShingle |
Evolution of the global coupled climate response to Arctic sea ice loss during 1990–2090 and its contribution to climate change |
title_short |
Evolution of the global coupled climate response to Arctic sea ice loss during 1990–2090 and its contribution to climate change |
title_full |
Evolution of the global coupled climate response to Arctic sea ice loss during 1990–2090 and its contribution to climate change |
title_fullStr |
Evolution of the global coupled climate response to Arctic sea ice loss during 1990–2090 and its contribution to climate change |
title_full_unstemmed |
Evolution of the global coupled climate response to Arctic sea ice loss during 1990–2090 and its contribution to climate change |
title_sort |
evolution of the global coupled climate response to arctic sea ice loss during 1990–2090 and its contribution to climate change |
publishDate |
2018 |
url |
https://doi.org/10.1175/JCLI-D-18-0134.1 |
geographic |
Arctic Pacific |
geographic_facet |
Arctic Pacific |
genre |
Arctic Climate change Global warming North Atlantic Sea ice |
genre_facet |
Arctic Climate change Global warming North Atlantic Sea ice |
op_relation |
Journal of Climate--J. Climate--0894-8755--1520-0442 Sea Ice Index, Version 3--10.7265/N5K072F8 articles:21898 ark:/85065/d7h9982h doi:10.1175/JCLI-D-18-0134.1 |
op_rights |
Copyright 2018 American Meteorological Society (AMS). |
op_doi |
https://doi.org/10.1175/JCLI-D-18-0134.1 |
container_title |
Journal of Climate |
container_volume |
31 |
container_issue |
19 |
container_start_page |
7823 |
op_container_end_page |
7843 |
_version_ |
1776197846010167296 |