Differing roles of North Atlantic oceanic and atmospheric transports in the winter Eurasian Arctic sea-ice interannual-to-decadal variability
In recent decades, winter Arctic sea-ice concentration (SIC) has experienced a most prominent decline over Barents-Kara Seas (BKS). However, what regulates the time scale and spatial structure of the SIC variability over the Eurasian Arctic is unclear. Here, we find that the SIC variability over the...
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NATURE PORTFOLIO
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Online Access: | http://ir.qdio.ac.cn/handle/337002/184992 http://ir.qdio.ac.cn/handle/337002/184993 https://doi.org/10.1038/s41612-024-00605-5 |
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ftchinacasciocas:oai:ir.qdio.ac.cn:337002/184993 2024-06-23T07:49:04+00:00 Differing roles of North Atlantic oceanic and atmospheric transports in the winter Eurasian Arctic sea-ice interannual-to-decadal variability Shi, Jiaqi Luo, Binhe Luo, Dehai Yao, Yao Gong, Tingting Liu, Yimin 2024-03-06 http://ir.qdio.ac.cn/handle/337002/184992 http://ir.qdio.ac.cn/handle/337002/184993 https://doi.org/10.1038/s41612-024-00605-5 英语 eng NATURE PORTFOLIO NPJ CLIMATE AND ATMOSPHERIC SCIENCE http://ir.qdio.ac.cn/handle/337002/184992 http://ir.qdio.ac.cn/handle/337002/184993 doi:10.1038/s41612-024-00605-5 Meteorology & Atmospheric Sciences MERIDIONAL OVERTURNING CIRCULATION MIDLATITUDE WEATHER HEAT-TRANSPORT TEMPERATURE CLIMATE AMPLIFICATION TRENDS IMPACT DRIVEN OSCILLATION 期刊论文 2024 ftchinacasciocas https://doi.org/10.1038/s41612-024-00605-5 2024-06-10T23:38:50Z In recent decades, winter Arctic sea-ice concentration (SIC) has experienced a most prominent decline over Barents-Kara Seas (BKS). However, what regulates the time scale and spatial structure of the SIC variability over the Eurasian Arctic is unclear. Here, we find that the SIC variability over the Eurasian Arctic exhibits two major modes: decadal dipole mode with antiphase variation between the BKS and East Greenland (EG), and interannual monopole mode with in-phase variation between the BKS and EG. This decadal mode mainly results from interdecadal changes in ocean heat transports (OHTs) through Barents Sea Opening (BSO) and EG, lagging the Atlantic Multidecadal Oscillation by 7-16 years. The positive SIC dipole mode with a decrease over the BKS and an increase over the EG is also tied to the negative Arctic Oscillation comprised of Ural blocking and the negative North Atlantic Oscillation (NAO). However, the SIC loss of the interannual monopole mode mainly stems from the positive Arctic dipole comprised of Ural blocking and positive NAO through interannual changes in the BSO OHT and atmospheric moisture or heat transport. We further highlight that interannual atmospheric transports and BSO OHT associated with the Arctic dipole contribute to similar to 66% and similar to 34% of the interannual variability of the Eurasian Arctic SIC during 1960-2017, respectively. On decadal timescales, the relative contributions of atmospheric transports associated with Arctic Oscillation and OHT to the Eurasian Arctic SIC variability are similar to 19% and similar to 81%, respectively. Especially, the contribution of decadal atmospheric transports is significantly intensified during 2000-2017. Report Arctic Barents Sea East Greenland Greenland North Atlantic North Atlantic oscillation Sea ice Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR Arctic Barents Sea Greenland npj Climate and Atmospheric Science 7 1 |
institution |
Open Polar |
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Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR |
op_collection_id |
ftchinacasciocas |
language |
English |
topic |
Meteorology & Atmospheric Sciences MERIDIONAL OVERTURNING CIRCULATION MIDLATITUDE WEATHER HEAT-TRANSPORT TEMPERATURE CLIMATE AMPLIFICATION TRENDS IMPACT DRIVEN OSCILLATION |
spellingShingle |
Meteorology & Atmospheric Sciences MERIDIONAL OVERTURNING CIRCULATION MIDLATITUDE WEATHER HEAT-TRANSPORT TEMPERATURE CLIMATE AMPLIFICATION TRENDS IMPACT DRIVEN OSCILLATION Shi, Jiaqi Luo, Binhe Luo, Dehai Yao, Yao Gong, Tingting Liu, Yimin Differing roles of North Atlantic oceanic and atmospheric transports in the winter Eurasian Arctic sea-ice interannual-to-decadal variability |
topic_facet |
Meteorology & Atmospheric Sciences MERIDIONAL OVERTURNING CIRCULATION MIDLATITUDE WEATHER HEAT-TRANSPORT TEMPERATURE CLIMATE AMPLIFICATION TRENDS IMPACT DRIVEN OSCILLATION |
description |
In recent decades, winter Arctic sea-ice concentration (SIC) has experienced a most prominent decline over Barents-Kara Seas (BKS). However, what regulates the time scale and spatial structure of the SIC variability over the Eurasian Arctic is unclear. Here, we find that the SIC variability over the Eurasian Arctic exhibits two major modes: decadal dipole mode with antiphase variation between the BKS and East Greenland (EG), and interannual monopole mode with in-phase variation between the BKS and EG. This decadal mode mainly results from interdecadal changes in ocean heat transports (OHTs) through Barents Sea Opening (BSO) and EG, lagging the Atlantic Multidecadal Oscillation by 7-16 years. The positive SIC dipole mode with a decrease over the BKS and an increase over the EG is also tied to the negative Arctic Oscillation comprised of Ural blocking and the negative North Atlantic Oscillation (NAO). However, the SIC loss of the interannual monopole mode mainly stems from the positive Arctic dipole comprised of Ural blocking and positive NAO through interannual changes in the BSO OHT and atmospheric moisture or heat transport. We further highlight that interannual atmospheric transports and BSO OHT associated with the Arctic dipole contribute to similar to 66% and similar to 34% of the interannual variability of the Eurasian Arctic SIC during 1960-2017, respectively. On decadal timescales, the relative contributions of atmospheric transports associated with Arctic Oscillation and OHT to the Eurasian Arctic SIC variability are similar to 19% and similar to 81%, respectively. Especially, the contribution of decadal atmospheric transports is significantly intensified during 2000-2017. |
format |
Report |
author |
Shi, Jiaqi Luo, Binhe Luo, Dehai Yao, Yao Gong, Tingting Liu, Yimin |
author_facet |
Shi, Jiaqi Luo, Binhe Luo, Dehai Yao, Yao Gong, Tingting Liu, Yimin |
author_sort |
Shi, Jiaqi |
title |
Differing roles of North Atlantic oceanic and atmospheric transports in the winter Eurasian Arctic sea-ice interannual-to-decadal variability |
title_short |
Differing roles of North Atlantic oceanic and atmospheric transports in the winter Eurasian Arctic sea-ice interannual-to-decadal variability |
title_full |
Differing roles of North Atlantic oceanic and atmospheric transports in the winter Eurasian Arctic sea-ice interannual-to-decadal variability |
title_fullStr |
Differing roles of North Atlantic oceanic and atmospheric transports in the winter Eurasian Arctic sea-ice interannual-to-decadal variability |
title_full_unstemmed |
Differing roles of North Atlantic oceanic and atmospheric transports in the winter Eurasian Arctic sea-ice interannual-to-decadal variability |
title_sort |
differing roles of north atlantic oceanic and atmospheric transports in the winter eurasian arctic sea-ice interannual-to-decadal variability |
publisher |
NATURE PORTFOLIO |
publishDate |
2024 |
url |
http://ir.qdio.ac.cn/handle/337002/184992 http://ir.qdio.ac.cn/handle/337002/184993 https://doi.org/10.1038/s41612-024-00605-5 |
geographic |
Arctic Barents Sea Greenland |
geographic_facet |
Arctic Barents Sea Greenland |
genre |
Arctic Barents Sea East Greenland Greenland North Atlantic North Atlantic oscillation Sea ice |
genre_facet |
Arctic Barents Sea East Greenland Greenland North Atlantic North Atlantic oscillation Sea ice |
op_relation |
NPJ CLIMATE AND ATMOSPHERIC SCIENCE http://ir.qdio.ac.cn/handle/337002/184992 http://ir.qdio.ac.cn/handle/337002/184993 doi:10.1038/s41612-024-00605-5 |
op_doi |
https://doi.org/10.1038/s41612-024-00605-5 |
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npj Climate and Atmospheric Science |
container_volume |
7 |
container_issue |
1 |
_version_ |
1802639348921794560 |