Similarities and Differences in Arctic Sea‐Ice Loss During the Solar‐Forced Last Interglacial Warming (127 Kyr BP) and CO2‐Forced Future Warming
Abstract Based on a 7‐member global circulation model ensemble from CMIP6/PMIP4, we compare the regional distribution of Arctic sea ice between a simulation representing the Last Interglacial (LIG) climate, with solar‐forced warming, and an idealized future CO2‐forced simulation with a similar annua...
Published in: | Geophysical Research Letters |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2023
|
Subjects: | |
Online Access: | https://doi.org/10.1029/2023GL104782 https://doaj.org/article/0acecd5c8c7e4218be9278533ec0938e |
id |
ftdoajarticles:oai:doaj.org/article:0acecd5c8c7e4218be9278533ec0938e |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:0acecd5c8c7e4218be9278533ec0938e 2024-09-09T19:19:24+00:00 Similarities and Differences in Arctic Sea‐Ice Loss During the Solar‐Forced Last Interglacial Warming (127 Kyr BP) and CO2‐Forced Future Warming Marie Sicard Agatha M. deBoer Helen K. Coxall Torben Koenigk Mehdi Pasha Karami Martin Jakobsson Matt O’Regan 2023-12-01T00:00:00Z https://doi.org/10.1029/2023GL104782 https://doaj.org/article/0acecd5c8c7e4218be9278533ec0938e EN eng Wiley https://doi.org/10.1029/2023GL104782 https://doaj.org/toc/0094-8276 https://doaj.org/toc/1944-8007 1944-8007 0094-8276 doi:10.1029/2023GL104782 https://doaj.org/article/0acecd5c8c7e4218be9278533ec0938e Geophysical Research Letters, Vol 50, Iss 24, Pp n/a-n/a (2023) Geophysics. Cosmic physics QC801-809 article 2023 ftdoajarticles https://doi.org/10.1029/2023GL104782 2024-08-05T17:49:23Z Abstract Based on a 7‐member global circulation model ensemble from CMIP6/PMIP4, we compare the regional distribution of Arctic sea ice between a simulation representing the Last Interglacial (LIG) climate, with solar‐forced warming, and an idealized future CO2‐forced simulation with a similar annual sea‐ice volume. The two simulations feature small but robust differences in the Central Arctic and Baffin Bay during summer, and larger differences at the sea‐ice margins in the sub‐Arctic Atlantic and North Pacific sectors during winter. Our results indicate that, under both forcings, sea ice persists north of Greenland until late summer, suggesting that the assumption that this region is the “Last Ice Area” is robust and holds for other climate states. However, we show that processes influencing sea‐ice distribution in winter, such as Atlantification and sea‐ice drift, differ and need to be further investigated. Article in Journal/Newspaper Arctic Baffin Bay Baffin Bay Baffin Greenland Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Baffin Bay Greenland Pacific Geophysical Research Letters 50 24 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Geophysics. Cosmic physics QC801-809 |
spellingShingle |
Geophysics. Cosmic physics QC801-809 Marie Sicard Agatha M. deBoer Helen K. Coxall Torben Koenigk Mehdi Pasha Karami Martin Jakobsson Matt O’Regan Similarities and Differences in Arctic Sea‐Ice Loss During the Solar‐Forced Last Interglacial Warming (127 Kyr BP) and CO2‐Forced Future Warming |
topic_facet |
Geophysics. Cosmic physics QC801-809 |
description |
Abstract Based on a 7‐member global circulation model ensemble from CMIP6/PMIP4, we compare the regional distribution of Arctic sea ice between a simulation representing the Last Interglacial (LIG) climate, with solar‐forced warming, and an idealized future CO2‐forced simulation with a similar annual sea‐ice volume. The two simulations feature small but robust differences in the Central Arctic and Baffin Bay during summer, and larger differences at the sea‐ice margins in the sub‐Arctic Atlantic and North Pacific sectors during winter. Our results indicate that, under both forcings, sea ice persists north of Greenland until late summer, suggesting that the assumption that this region is the “Last Ice Area” is robust and holds for other climate states. However, we show that processes influencing sea‐ice distribution in winter, such as Atlantification and sea‐ice drift, differ and need to be further investigated. |
format |
Article in Journal/Newspaper |
author |
Marie Sicard Agatha M. deBoer Helen K. Coxall Torben Koenigk Mehdi Pasha Karami Martin Jakobsson Matt O’Regan |
author_facet |
Marie Sicard Agatha M. deBoer Helen K. Coxall Torben Koenigk Mehdi Pasha Karami Martin Jakobsson Matt O’Regan |
author_sort |
Marie Sicard |
title |
Similarities and Differences in Arctic Sea‐Ice Loss During the Solar‐Forced Last Interglacial Warming (127 Kyr BP) and CO2‐Forced Future Warming |
title_short |
Similarities and Differences in Arctic Sea‐Ice Loss During the Solar‐Forced Last Interglacial Warming (127 Kyr BP) and CO2‐Forced Future Warming |
title_full |
Similarities and Differences in Arctic Sea‐Ice Loss During the Solar‐Forced Last Interglacial Warming (127 Kyr BP) and CO2‐Forced Future Warming |
title_fullStr |
Similarities and Differences in Arctic Sea‐Ice Loss During the Solar‐Forced Last Interglacial Warming (127 Kyr BP) and CO2‐Forced Future Warming |
title_full_unstemmed |
Similarities and Differences in Arctic Sea‐Ice Loss During the Solar‐Forced Last Interglacial Warming (127 Kyr BP) and CO2‐Forced Future Warming |
title_sort |
similarities and differences in arctic sea‐ice loss during the solar‐forced last interglacial warming (127 kyr bp) and co2‐forced future warming |
publisher |
Wiley |
publishDate |
2023 |
url |
https://doi.org/10.1029/2023GL104782 https://doaj.org/article/0acecd5c8c7e4218be9278533ec0938e |
geographic |
Arctic Baffin Bay Greenland Pacific |
geographic_facet |
Arctic Baffin Bay Greenland Pacific |
genre |
Arctic Baffin Bay Baffin Bay Baffin Greenland Sea ice |
genre_facet |
Arctic Baffin Bay Baffin Bay Baffin Greenland Sea ice |
op_source |
Geophysical Research Letters, Vol 50, Iss 24, Pp n/a-n/a (2023) |
op_relation |
https://doi.org/10.1029/2023GL104782 https://doaj.org/toc/0094-8276 https://doaj.org/toc/1944-8007 1944-8007 0094-8276 doi:10.1029/2023GL104782 https://doaj.org/article/0acecd5c8c7e4218be9278533ec0938e |
op_doi |
https://doi.org/10.1029/2023GL104782 |
container_title |
Geophysical Research Letters |
container_volume |
50 |
container_issue |
24 |
_version_ |
1809759518853169152 |