How does the SST variability over the western North Atlantic Ocean control Arctic warming over the Barents–Kara Seas?
Arctic warming over the Barents–Kara Seas and its impacts on the mid-latitude circulations have been widely discussed. However, the specific mechanism that brings the warming still remains unclear. In this study, a possible cause of the regional Arctic warming over the Barents–Kara Seas during early...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2017-01-01
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| Series: | Environmental Research Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1748-9326/aa5f3b |
| _version_ | 1797748364489523200 |
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| author | Ok Jung Mi-Kyung Sung Kazutoshi Sato Young-Kwon Lim Seong-Joong Kim Eun-Hyuk Baek Jee-Hoon Jeong Baek-Min Kim |
| author_facet | Ok Jung Mi-Kyung Sung Kazutoshi Sato Young-Kwon Lim Seong-Joong Kim Eun-Hyuk Baek Jee-Hoon Jeong Baek-Min Kim |
| author_sort | Ok Jung |
| collection | DOAJ |
| description | Arctic warming over the Barents–Kara Seas and its impacts on the mid-latitude circulations have been widely discussed. However, the specific mechanism that brings the warming still remains unclear. In this study, a possible cause of the regional Arctic warming over the Barents–Kara Seas during early winter (October–December) is suggested. We found that warmer sea surface temperature anomalies over the western North Atlantic Ocean (WNAO) modulate the transient eddies overlying the oceanic frontal region. The altered transient eddy vorticity flux acts as a source for the Rossby wave straddling the western North Atlantic and the Barents–Kara Seas (Scandinavian pattern), and induces a significant warm advection, increasing surface and lower-level temperature over the Eurasian sector of the Arctic Ocean. The importance of the sea surface temperature anomalies over the WNAO and subsequent transient eddy forcing over the WNAO was also supported by both specially designed simple model experiments and general circulation model experiments. |
| first_indexed | 2024-03-12T16:03:41Z |
| format | Article |
| id | doaj.art-7dfa5e7305a6434b92cbdbb3c5131bbc |
| institution | Directory Open Access Journal |
| issn | 1748-9326 |
| language | English |
| last_indexed | 2024-03-12T16:03:41Z |
| publishDate | 2017-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Environmental Research Letters |
| spelling | doaj.art-7dfa5e7305a6434b92cbdbb3c5131bbc2023-08-09T14:30:44ZengIOP PublishingEnvironmental Research Letters1748-93262017-01-0112303402110.1088/1748-9326/aa5f3bHow does the SST variability over the western North Atlantic Ocean control Arctic warming over the Barents–Kara Seas?Ok Jung0Mi-Kyung Sung1Kazutoshi Sato2Young-Kwon Lim3Seong-Joong Kim4Eun-Hyuk Baek5Jee-Hoon Jeong6Baek-Min Kim7Ewha Womans University-Industry Collaboration Foundation , Seoul KoreaEwha Womans University-Industry Collaboration Foundation , Seoul KoreaNational Institute of Polar Research , Tachikawa, JapanNASA Goddard Space Flight Center/Global Modeling and Assimilation Office , Goddard Earth Sciences Technology and Research/I.M. Systems Group, Greenbelt, MD, United States of AmericaKorea Polar Research Institute , Incheon, KoreaKorea Polar Research Institute , Incheon, KoreaChonnam National University , Gwangju, KoreaKorea Polar Research Institute , Incheon, Korea; Author to whom any correspondence should be addressed.Arctic warming over the Barents–Kara Seas and its impacts on the mid-latitude circulations have been widely discussed. However, the specific mechanism that brings the warming still remains unclear. In this study, a possible cause of the regional Arctic warming over the Barents–Kara Seas during early winter (October–December) is suggested. We found that warmer sea surface temperature anomalies over the western North Atlantic Ocean (WNAO) modulate the transient eddies overlying the oceanic frontal region. The altered transient eddy vorticity flux acts as a source for the Rossby wave straddling the western North Atlantic and the Barents–Kara Seas (Scandinavian pattern), and induces a significant warm advection, increasing surface and lower-level temperature over the Eurasian sector of the Arctic Ocean. The importance of the sea surface temperature anomalies over the WNAO and subsequent transient eddy forcing over the WNAO was also supported by both specially designed simple model experiments and general circulation model experiments.https://doi.org/10.1088/1748-9326/aa5f3bArctic warmingStationary Wave Modeltransient eddy vorticity forcingWestern North Atlantic Ocean |
| spellingShingle | Ok Jung Mi-Kyung Sung Kazutoshi Sato Young-Kwon Lim Seong-Joong Kim Eun-Hyuk Baek Jee-Hoon Jeong Baek-Min Kim How does the SST variability over the western North Atlantic Ocean control Arctic warming over the Barents–Kara Seas? Environmental Research Letters Arctic warming Stationary Wave Model transient eddy vorticity forcing Western North Atlantic Ocean |
| title | How does the SST variability over the western North Atlantic Ocean control Arctic warming over the Barents–Kara Seas? |
| title_full | How does the SST variability over the western North Atlantic Ocean control Arctic warming over the Barents–Kara Seas? |
| title_fullStr | How does the SST variability over the western North Atlantic Ocean control Arctic warming over the Barents–Kara Seas? |
| title_full_unstemmed | How does the SST variability over the western North Atlantic Ocean control Arctic warming over the Barents–Kara Seas? |
| title_short | How does the SST variability over the western North Atlantic Ocean control Arctic warming over the Barents–Kara Seas? |
| title_sort | how does the sst variability over the western north atlantic ocean control arctic warming over the barents kara seas |
| topic | Arctic warming Stationary Wave Model transient eddy vorticity forcing Western North Atlantic Ocean |
| url | https://doi.org/10.1088/1748-9326/aa5f3b |
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