Impact of Cyclonic Wind Anomalies Caused by Massive Winter Sea Ice Retreat in the Barents Sea on Atlantic Water Transport Toward the Arctic: A Model Study
The Arctic is warming much faster than the global average. This is known as Arctic Amplification and is caused by feedbacks in the local climate system. In this study, we explore a previously proposed hypothesis that an associated wind feedback in the Barents Sea could play an important role by incr...
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American Geophysical Union (AGU)
2023
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Online Access: | https://epic.awi.de/id/eprint/57835/ https://epic.awi.de/id/eprint/57835/1/Heukamp2023.pdf https://hdl.handle.net/10013/epic.4e52ff5d-7607-403c-89bd-d1026905a75b |
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ftawi:oai:epic.awi.de:57835 2023-07-16T03:55:37+02:00 Impact of Cyclonic Wind Anomalies Caused by Massive Winter Sea Ice Retreat in the Barents Sea on Atlantic Water Transport Toward the Arctic: A Model Study Heukamp, Finn Ole Kanzow, Torsten Wang, Qiang Wekerle, Claudia Gerdes, Rüdiger 2023-03-15 application/pdf https://epic.awi.de/id/eprint/57835/ https://epic.awi.de/id/eprint/57835/1/Heukamp2023.pdf https://hdl.handle.net/10013/epic.4e52ff5d-7607-403c-89bd-d1026905a75b unknown American Geophysical Union (AGU) https://epic.awi.de/id/eprint/57835/1/Heukamp2023.pdf Heukamp, F. O. orcid:0000-0002-2079-4827 , Kanzow, T. orcid:0000-0002-5786-3435 , Wang, Q. orcid:0000-0002-2704-5394 , Wekerle, C. orcid:0000-0001-9985-0950 and Gerdes, R. (2023) Impact of Cyclonic Wind Anomalies Caused by Massive Winter Sea Ice Retreat in the Barents Sea on Atlantic Water Transport Toward the Arctic: A Model Study , Journal of Geophysical Research - Oceans, 128 (3) . doi:10.1029/2022jc019045 <https://doi.org/10.1029/2022jc019045> , hdl:10013/epic.4e52ff5d-7607-403c-89bd-d1026905a75b EPIC3Journal of Geophysical Research - Oceans, American Geophysical Union (AGU), 128(3), ISSN: 2169-9275 Article isiRev 2023 ftawi https://doi.org/10.1029/2022jc019045 2023-06-25T23:20:01Z The Arctic is warming much faster than the global average. This is known as Arctic Amplification and is caused by feedbacks in the local climate system. In this study, we explore a previously proposed hypothesis that an associated wind feedback in the Barents Sea could play an important role by increasing the warm water inflow into the Barents Sea. We find that the strong recent decrease in Barents Sea winter sea ice cover causes enhanced ocean-atmosphere heat flux and a local air temperature increase, thus a reduction in sea level pressure and a local cyclonic wind anomaly with eastward winds in the Barents Sea Opening. By investigating various reanalysis products and performing high-resolution perturbation experiments with the ocean and sea ice model FESOM2.1, we studied the impact of cyclonic atmospheric circulation changes on the warm Atlantic Water import into the Arctic via the Barents Sea and Fram Strait. We found that the observed wind changes do not significantly affect the warm water transport into the Barents Sea, which rejects the wind-feedback hypothesis. At the same time, the cyclonic wind anomalies in the Barents Sea increase the amount of Atlantic Water recirculating westwards in Fram Strait by a downslope shift of the West Spitsbergen Current, and thus reduce Atlantic Water reaching the Arctic basin via Fram Strait. The resulting warm-water anomaly in the Greenland Sea Gyre drives a local anticyclonic circulation anomaly. Article in Journal/Newspaper Arctic Arctic Basin Arctic Barents Sea Fram Strait Greenland Greenland Sea Sea ice Spitsbergen Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Barents Sea Greenland Arctic Science 8 3 572 608 |
institution |
Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
The Arctic is warming much faster than the global average. This is known as Arctic Amplification and is caused by feedbacks in the local climate system. In this study, we explore a previously proposed hypothesis that an associated wind feedback in the Barents Sea could play an important role by increasing the warm water inflow into the Barents Sea. We find that the strong recent decrease in Barents Sea winter sea ice cover causes enhanced ocean-atmosphere heat flux and a local air temperature increase, thus a reduction in sea level pressure and a local cyclonic wind anomaly with eastward winds in the Barents Sea Opening. By investigating various reanalysis products and performing high-resolution perturbation experiments with the ocean and sea ice model FESOM2.1, we studied the impact of cyclonic atmospheric circulation changes on the warm Atlantic Water import into the Arctic via the Barents Sea and Fram Strait. We found that the observed wind changes do not significantly affect the warm water transport into the Barents Sea, which rejects the wind-feedback hypothesis. At the same time, the cyclonic wind anomalies in the Barents Sea increase the amount of Atlantic Water recirculating westwards in Fram Strait by a downslope shift of the West Spitsbergen Current, and thus reduce Atlantic Water reaching the Arctic basin via Fram Strait. The resulting warm-water anomaly in the Greenland Sea Gyre drives a local anticyclonic circulation anomaly. |
format |
Article in Journal/Newspaper |
author |
Heukamp, Finn Ole Kanzow, Torsten Wang, Qiang Wekerle, Claudia Gerdes, Rüdiger |
spellingShingle |
Heukamp, Finn Ole Kanzow, Torsten Wang, Qiang Wekerle, Claudia Gerdes, Rüdiger Impact of Cyclonic Wind Anomalies Caused by Massive Winter Sea Ice Retreat in the Barents Sea on Atlantic Water Transport Toward the Arctic: A Model Study |
author_facet |
Heukamp, Finn Ole Kanzow, Torsten Wang, Qiang Wekerle, Claudia Gerdes, Rüdiger |
author_sort |
Heukamp, Finn Ole |
title |
Impact of Cyclonic Wind Anomalies Caused by Massive Winter Sea Ice Retreat in the Barents Sea on Atlantic Water Transport Toward the Arctic: A Model Study |
title_short |
Impact of Cyclonic Wind Anomalies Caused by Massive Winter Sea Ice Retreat in the Barents Sea on Atlantic Water Transport Toward the Arctic: A Model Study |
title_full |
Impact of Cyclonic Wind Anomalies Caused by Massive Winter Sea Ice Retreat in the Barents Sea on Atlantic Water Transport Toward the Arctic: A Model Study |
title_fullStr |
Impact of Cyclonic Wind Anomalies Caused by Massive Winter Sea Ice Retreat in the Barents Sea on Atlantic Water Transport Toward the Arctic: A Model Study |
title_full_unstemmed |
Impact of Cyclonic Wind Anomalies Caused by Massive Winter Sea Ice Retreat in the Barents Sea on Atlantic Water Transport Toward the Arctic: A Model Study |
title_sort |
impact of cyclonic wind anomalies caused by massive winter sea ice retreat in the barents sea on atlantic water transport toward the arctic: a model study |
publisher |
American Geophysical Union (AGU) |
publishDate |
2023 |
url |
https://epic.awi.de/id/eprint/57835/ https://epic.awi.de/id/eprint/57835/1/Heukamp2023.pdf https://hdl.handle.net/10013/epic.4e52ff5d-7607-403c-89bd-d1026905a75b |
geographic |
Arctic Barents Sea Greenland |
geographic_facet |
Arctic Barents Sea Greenland |
genre |
Arctic Arctic Basin Arctic Barents Sea Fram Strait Greenland Greenland Sea Sea ice Spitsbergen |
genre_facet |
Arctic Arctic Basin Arctic Barents Sea Fram Strait Greenland Greenland Sea Sea ice Spitsbergen |
op_source |
EPIC3Journal of Geophysical Research - Oceans, American Geophysical Union (AGU), 128(3), ISSN: 2169-9275 |
op_relation |
https://epic.awi.de/id/eprint/57835/1/Heukamp2023.pdf Heukamp, F. O. orcid:0000-0002-2079-4827 , Kanzow, T. orcid:0000-0002-5786-3435 , Wang, Q. orcid:0000-0002-2704-5394 , Wekerle, C. orcid:0000-0001-9985-0950 and Gerdes, R. (2023) Impact of Cyclonic Wind Anomalies Caused by Massive Winter Sea Ice Retreat in the Barents Sea on Atlantic Water Transport Toward the Arctic: A Model Study , Journal of Geophysical Research - Oceans, 128 (3) . doi:10.1029/2022jc019045 <https://doi.org/10.1029/2022jc019045> , hdl:10013/epic.4e52ff5d-7607-403c-89bd-d1026905a75b |
op_doi |
https://doi.org/10.1029/2022jc019045 |
container_title |
Arctic Science |
container_volume |
8 |
container_issue |
3 |
container_start_page |
572 |
op_container_end_page |
608 |
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1771541802604560384 |