Anomalous collapses of Nares Strait ice arches leads to enhanced export of Arctic sea ice

Abstract The ice arches that usually develop at the northern and southern ends of Nares Strait play an important role in modulating the export of Arctic Ocean multi-year sea ice. The Arctic Ocean is evolving towards an ice pack that is younger, thinner, and more mobile and the fate of its multi-year...

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Published in:Nature Communications
Main Authors: Moore, G. W. K., Howell, S. E. L., Brady, M., Xu, X., McNeil, K.
Format: Article in Journal/Newspaper
Language:English
Published: Springer Science and Business Media LLC 2021
Subjects:
Online Access:http://dx.doi.org/10.1038/s41467-020-20314-w
http://www.nature.com/articles/s41467-020-20314-w.pdf
http://www.nature.com/articles/s41467-020-20314-w
id crspringernat:10.1038/s41467-020-20314-w
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spelling crspringernat:10.1038/s41467-020-20314-w 2023-05-15T14:42:12+02:00 Anomalous collapses of Nares Strait ice arches leads to enhanced export of Arctic sea ice Moore, G. W. K. Howell, S. E. L. Brady, M. Xu, X. McNeil, K. 2021 http://dx.doi.org/10.1038/s41467-020-20314-w http://www.nature.com/articles/s41467-020-20314-w.pdf http://www.nature.com/articles/s41467-020-20314-w en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Nature Communications volume 12, issue 1 ISSN 2041-1723 General Physics and Astronomy General Biochemistry, Genetics and Molecular Biology General Chemistry journal-article 2021 crspringernat https://doi.org/10.1038/s41467-020-20314-w 2022-01-04T16:44:09Z Abstract The ice arches that usually develop at the northern and southern ends of Nares Strait play an important role in modulating the export of Arctic Ocean multi-year sea ice. The Arctic Ocean is evolving towards an ice pack that is younger, thinner, and more mobile and the fate of its multi-year ice is becoming of increasing interest. Here, we use sea ice motion retrievals from Sentinel-1 imagery to report on the recent behavior of these ice arches and the associated ice fluxes. We show that the duration of arch formation has decreased over the past 20 years, while the ice area and volume fluxes along Nares Strait have both increased. These results suggest that a transition is underway towards a state where the formation of these arches will become atypical with a concomitant increase in the export of multi-year ice accelerating the transition towards a younger and thinner Arctic ice pack. Article in Journal/Newspaper Arctic Arctic Ocean ice pack Nares strait Sea ice Springer Nature (via Crossref) Arctic Arctic Ocean Nares ENVELOPE(158.167,158.167,-81.450,-81.450) Nature Communications 12 1
institution Open Polar
collection Springer Nature (via Crossref)
op_collection_id crspringernat
language English
topic General Physics and Astronomy
General Biochemistry, Genetics and Molecular Biology
General Chemistry
spellingShingle General Physics and Astronomy
General Biochemistry, Genetics and Molecular Biology
General Chemistry
Moore, G. W. K.
Howell, S. E. L.
Brady, M.
Xu, X.
McNeil, K.
Anomalous collapses of Nares Strait ice arches leads to enhanced export of Arctic sea ice
topic_facet General Physics and Astronomy
General Biochemistry, Genetics and Molecular Biology
General Chemistry
description Abstract The ice arches that usually develop at the northern and southern ends of Nares Strait play an important role in modulating the export of Arctic Ocean multi-year sea ice. The Arctic Ocean is evolving towards an ice pack that is younger, thinner, and more mobile and the fate of its multi-year ice is becoming of increasing interest. Here, we use sea ice motion retrievals from Sentinel-1 imagery to report on the recent behavior of these ice arches and the associated ice fluxes. We show that the duration of arch formation has decreased over the past 20 years, while the ice area and volume fluxes along Nares Strait have both increased. These results suggest that a transition is underway towards a state where the formation of these arches will become atypical with a concomitant increase in the export of multi-year ice accelerating the transition towards a younger and thinner Arctic ice pack.
format Article in Journal/Newspaper
author Moore, G. W. K.
Howell, S. E. L.
Brady, M.
Xu, X.
McNeil, K.
author_facet Moore, G. W. K.
Howell, S. E. L.
Brady, M.
Xu, X.
McNeil, K.
author_sort Moore, G. W. K.
title Anomalous collapses of Nares Strait ice arches leads to enhanced export of Arctic sea ice
title_short Anomalous collapses of Nares Strait ice arches leads to enhanced export of Arctic sea ice
title_full Anomalous collapses of Nares Strait ice arches leads to enhanced export of Arctic sea ice
title_fullStr Anomalous collapses of Nares Strait ice arches leads to enhanced export of Arctic sea ice
title_full_unstemmed Anomalous collapses of Nares Strait ice arches leads to enhanced export of Arctic sea ice
title_sort anomalous collapses of nares strait ice arches leads to enhanced export of arctic sea ice
publisher Springer Science and Business Media LLC
publishDate 2021
url http://dx.doi.org/10.1038/s41467-020-20314-w
http://www.nature.com/articles/s41467-020-20314-w.pdf
http://www.nature.com/articles/s41467-020-20314-w
long_lat ENVELOPE(158.167,158.167,-81.450,-81.450)
geographic Arctic
Arctic Ocean
Nares
geographic_facet Arctic
Arctic Ocean
Nares
genre Arctic
Arctic Ocean
ice pack
Nares strait
Sea ice
genre_facet Arctic
Arctic Ocean
ice pack
Nares strait
Sea ice
op_source Nature Communications
volume 12, issue 1
ISSN 2041-1723
op_rights https://creativecommons.org/licenses/by/4.0
https://creativecommons.org/licenses/by/4.0
op_rightsnorm CC-BY
op_doi https://doi.org/10.1038/s41467-020-20314-w
container_title Nature Communications
container_volume 12
container_issue 1
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