More frequent atmospheric rivers slow the seasonal recovery of Arctic sea ice
In recent decades, Arctic sea-ice coverage underwent a drastic decline in winter, when sea ice is expected to recover following the melting season. It is unclear to what extent atmospheric processes such as atmospheric rivers (ARs), intense corridors of moisture transport, contribute to this reduced...
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ftgfzpotsdam:oai:gfzpublic.gfz-potsdam.de:item_5021745 2023-07-30T04:00:26+02:00 More frequent atmospheric rivers slow the seasonal recovery of Arctic sea ice Zhang, P. 2023-07-11 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5021745 eng eng info:eu-repo/semantics/altIdentifier/doi/10.57757/IUGG23-4310 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5021745 XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) info:eu-repo/semantics/conferenceObject 2023 ftgfzpotsdam https://doi.org/10.57757/IUGG23-4310 2023-07-16T23:40:25Z In recent decades, Arctic sea-ice coverage underwent a drastic decline in winter, when sea ice is expected to recover following the melting season. It is unclear to what extent atmospheric processes such as atmospheric rivers (ARs), intense corridors of moisture transport, contribute to this reduced recovery of sea ice. Here, using observations and climate model simulations, we find a robust frequency increase in ARs in early winter over the Barents– Kara Seas and the central Arctic for 1979–2021. The moisture carried by more frequent ARs has intensified surface downward longwave radiation and rainfall, caused stronger melting of thin, fragile ice cover and slowed the seasonal recovery of sea ice, accounting for 34% of the sea-ice cover decline in the Barents–Kara Seas and central Arctic. A series of model ensemble experiments suggests that, in addition to a uniform AR increase in response to anthropogenic warming, tropical Pacific variability also contributes to the observed Arctic AR changes. Publication: Zhang, P., Chen, G., Ting, M. et al. More frequent atmospheric rivers slow the seasonal recovery of Arctic sea ice. Nat. Clim. Chang. (2023). https://doi.org/10.1038/s41558-023-01599-3 Conference Object Arctic Sea ice GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) Arctic Pacific |
institution |
Open Polar |
collection |
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) |
op_collection_id |
ftgfzpotsdam |
language |
English |
description |
In recent decades, Arctic sea-ice coverage underwent a drastic decline in winter, when sea ice is expected to recover following the melting season. It is unclear to what extent atmospheric processes such as atmospheric rivers (ARs), intense corridors of moisture transport, contribute to this reduced recovery of sea ice. Here, using observations and climate model simulations, we find a robust frequency increase in ARs in early winter over the Barents– Kara Seas and the central Arctic for 1979–2021. The moisture carried by more frequent ARs has intensified surface downward longwave radiation and rainfall, caused stronger melting of thin, fragile ice cover and slowed the seasonal recovery of sea ice, accounting for 34% of the sea-ice cover decline in the Barents–Kara Seas and central Arctic. A series of model ensemble experiments suggests that, in addition to a uniform AR increase in response to anthropogenic warming, tropical Pacific variability also contributes to the observed Arctic AR changes. Publication: Zhang, P., Chen, G., Ting, M. et al. More frequent atmospheric rivers slow the seasonal recovery of Arctic sea ice. Nat. Clim. Chang. (2023). https://doi.org/10.1038/s41558-023-01599-3 |
format |
Conference Object |
author |
Zhang, P. |
spellingShingle |
Zhang, P. More frequent atmospheric rivers slow the seasonal recovery of Arctic sea ice |
author_facet |
Zhang, P. |
author_sort |
Zhang, P. |
title |
More frequent atmospheric rivers slow the seasonal recovery of Arctic sea ice |
title_short |
More frequent atmospheric rivers slow the seasonal recovery of Arctic sea ice |
title_full |
More frequent atmospheric rivers slow the seasonal recovery of Arctic sea ice |
title_fullStr |
More frequent atmospheric rivers slow the seasonal recovery of Arctic sea ice |
title_full_unstemmed |
More frequent atmospheric rivers slow the seasonal recovery of Arctic sea ice |
title_sort |
more frequent atmospheric rivers slow the seasonal recovery of arctic sea ice |
publishDate |
2023 |
url |
https://gfzpublic.gfz-potsdam.de/pubman/item/item_5021745 |
geographic |
Arctic Pacific |
geographic_facet |
Arctic Pacific |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_source |
XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.57757/IUGG23-4310 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5021745 |
op_doi |
https://doi.org/10.57757/IUGG23-4310 |
_version_ |
1772810935151362048 |