Role of Extratropical Wintertime Cyclones in Regulating the Variations of Baffin Bay Sea Ice Export
A cyclone is an intensive synoptic activity that occurs frequently over Baffin Bay. By modifying the large-scale distribution pattern of sea level pressure, a passing cyclone can serve as an important regulator of sea ice outflow via the Davis Strait. We obtain a nearly 40-year-long record (1979/198...
Published in: | Journal of Geophysical Research: Atmospheres |
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Online Access: | http://ir.qdio.ac.cn/handle/337002/170386 http://ir.qdio.ac.cn/handle/337002/170387 https://doi.org/10.1029/2020JD033616 |
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ftchinacasciocas:oai:ir.qdio.ac.cn:337002/170387 2023-05-15T15:09:45+02:00 Role of Extratropical Wintertime Cyclones in Regulating the Variations of Baffin Bay Sea Ice Export Liang, Yu Bi, Haibo Wang, Yunhe Huang, Haijun Zhang, Zehua Huang, Jue Liu, Yanxia 2021-03-16 http://ir.qdio.ac.cn/handle/337002/170386 http://ir.qdio.ac.cn/handle/337002/170387 https://doi.org/10.1029/2020JD033616 英语 eng AMER GEOPHYSICAL UNION JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES http://ir.qdio.ac.cn/handle/337002/170386 http://ir.qdio.ac.cn/handle/337002/170387 doi:10.1029/2020JD033616 Meteorology & Atmospheric Sciences 期刊论文 2021 ftchinacasciocas https://doi.org/10.1029/2020JD033616 2022-06-27T05:43:39Z A cyclone is an intensive synoptic activity that occurs frequently over Baffin Bay. By modifying the large-scale distribution pattern of sea level pressure, a passing cyclone can serve as an important regulator of sea ice outflow via the Davis Strait. We obtain a nearly 40-year-long record (1979/1980-2017/2018) of the sea ice area flux (SIAF) through the Davis Strait and Arctic cyclone activities in winter. A case study and statistical results indicate that the sea ice concentration and motion fields can be greatly altered by the occurrence of cyclones, thereby contributing to changes in sea ice export. Moreover, the effects of cyclones on sea ice export in Baffin Bay are dependent on the spatial distribution pattern of the storms. In terms of the cyclone center count and intensity, the key regions with significant impacts on sea ice export out of Baffin Bay are identified, one around Baffin Island (80 degrees W-60 degrees W, 60 degrees N-70 degrees N) and the other over the southern Labrador Peninsula (70 degrees W-50 degrees W, 40 degrees N-60 degrees N). A robust correlation exists between the winter-accumulated SIAF via the Davis Strait and the average winter cyclone intensity (center count) in the critical regions with R = -0.57 (+0.49), affirming the vital role of cyclone activity in modulating the interannual variability of sea ice export in Baffin Bay. Report Arctic Baffin Bay Baffin Bay Baffin Island Baffin Davis Strait Sea ice Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR Arctic Baffin Bay Baffin Island Journal of Geophysical Research: Atmospheres 126 5 |
institution |
Open Polar |
collection |
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR |
op_collection_id |
ftchinacasciocas |
language |
English |
topic |
Meteorology & Atmospheric Sciences |
spellingShingle |
Meteorology & Atmospheric Sciences Liang, Yu Bi, Haibo Wang, Yunhe Huang, Haijun Zhang, Zehua Huang, Jue Liu, Yanxia Role of Extratropical Wintertime Cyclones in Regulating the Variations of Baffin Bay Sea Ice Export |
topic_facet |
Meteorology & Atmospheric Sciences |
description |
A cyclone is an intensive synoptic activity that occurs frequently over Baffin Bay. By modifying the large-scale distribution pattern of sea level pressure, a passing cyclone can serve as an important regulator of sea ice outflow via the Davis Strait. We obtain a nearly 40-year-long record (1979/1980-2017/2018) of the sea ice area flux (SIAF) through the Davis Strait and Arctic cyclone activities in winter. A case study and statistical results indicate that the sea ice concentration and motion fields can be greatly altered by the occurrence of cyclones, thereby contributing to changes in sea ice export. Moreover, the effects of cyclones on sea ice export in Baffin Bay are dependent on the spatial distribution pattern of the storms. In terms of the cyclone center count and intensity, the key regions with significant impacts on sea ice export out of Baffin Bay are identified, one around Baffin Island (80 degrees W-60 degrees W, 60 degrees N-70 degrees N) and the other over the southern Labrador Peninsula (70 degrees W-50 degrees W, 40 degrees N-60 degrees N). A robust correlation exists between the winter-accumulated SIAF via the Davis Strait and the average winter cyclone intensity (center count) in the critical regions with R = -0.57 (+0.49), affirming the vital role of cyclone activity in modulating the interannual variability of sea ice export in Baffin Bay. |
format |
Report |
author |
Liang, Yu Bi, Haibo Wang, Yunhe Huang, Haijun Zhang, Zehua Huang, Jue Liu, Yanxia |
author_facet |
Liang, Yu Bi, Haibo Wang, Yunhe Huang, Haijun Zhang, Zehua Huang, Jue Liu, Yanxia |
author_sort |
Liang, Yu |
title |
Role of Extratropical Wintertime Cyclones in Regulating the Variations of Baffin Bay Sea Ice Export |
title_short |
Role of Extratropical Wintertime Cyclones in Regulating the Variations of Baffin Bay Sea Ice Export |
title_full |
Role of Extratropical Wintertime Cyclones in Regulating the Variations of Baffin Bay Sea Ice Export |
title_fullStr |
Role of Extratropical Wintertime Cyclones in Regulating the Variations of Baffin Bay Sea Ice Export |
title_full_unstemmed |
Role of Extratropical Wintertime Cyclones in Regulating the Variations of Baffin Bay Sea Ice Export |
title_sort |
role of extratropical wintertime cyclones in regulating the variations of baffin bay sea ice export |
publisher |
AMER GEOPHYSICAL UNION |
publishDate |
2021 |
url |
http://ir.qdio.ac.cn/handle/337002/170386 http://ir.qdio.ac.cn/handle/337002/170387 https://doi.org/10.1029/2020JD033616 |
geographic |
Arctic Baffin Bay Baffin Island |
geographic_facet |
Arctic Baffin Bay Baffin Island |
genre |
Arctic Baffin Bay Baffin Bay Baffin Island Baffin Davis Strait Sea ice |
genre_facet |
Arctic Baffin Bay Baffin Bay Baffin Island Baffin Davis Strait Sea ice |
op_relation |
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES http://ir.qdio.ac.cn/handle/337002/170386 http://ir.qdio.ac.cn/handle/337002/170387 doi:10.1029/2020JD033616 |
op_doi |
https://doi.org/10.1029/2020JD033616 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
126 |
container_issue |
5 |
_version_ |
1766340879330574336 |