Changes in sea-surface temperature and atmospheric circulation patterns associated with reductions in Arctic sea ice cover in recent decades
In recent decades, the Arctic sea ice has been declining at a rapid pace as the Arctic warms at a rate of twice the global average. The underlying physical mechanisms for the Arctic warming and accelerated sea ice retreat are not fully understood. In this study, we apply a relatively novel statistic...
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ftdoajarticles:oai:doaj.org/article:4712c8bec84240698c88e107604442db 2023-05-15T14:32:21+02:00 Changes in sea-surface temperature and atmospheric circulation patterns associated with reductions in Arctic sea ice cover in recent decades L. Yu S. Zhong 2018-10-01T00:00:00Z https://doi.org/10.5194/acp-18-14149-2018 https://doaj.org/article/4712c8bec84240698c88e107604442db EN eng Copernicus Publications https://www.atmos-chem-phys.net/18/14149/2018/acp-18-14149-2018.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-18-14149-2018 1680-7316 1680-7324 https://doaj.org/article/4712c8bec84240698c88e107604442db Atmospheric Chemistry and Physics, Vol 18, Pp 14149-14159 (2018) Physics QC1-999 Chemistry QD1-999 article 2018 ftdoajarticles https://doi.org/10.5194/acp-18-14149-2018 2022-12-31T14:02:22Z In recent decades, the Arctic sea ice has been declining at a rapid pace as the Arctic warms at a rate of twice the global average. The underlying physical mechanisms for the Arctic warming and accelerated sea ice retreat are not fully understood. In this study, we apply a relatively novel statistical method called self-organizing maps (SOM) along with composite analysis to examine the trend and variability of autumn Arctic sea ice in the past three decades and their relationships to large-scale atmospheric circulation changes. Our statistical results show that the anomalous autumn Arctic dipole (AD) (Node 1) and the Arctic Oscillation (AO) (Node 9) could explain in a statistical sense as much as 50 % of autumn sea ice decline between 1979 and 2016. The Arctic atmospheric circulation anomalies associated with anomalous sea-surface temperature (SST) patterns over the North Pacific and North Atlantic influence Arctic sea ice primarily through anomalous temperature and water vapor advection and associated radiative feedback. Article in Journal/Newspaper Arctic North Atlantic Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Pacific Atmospheric Chemistry and Physics 18 19 14149 14159 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Physics QC1-999 Chemistry QD1-999 |
spellingShingle |
Physics QC1-999 Chemistry QD1-999 L. Yu S. Zhong Changes in sea-surface temperature and atmospheric circulation patterns associated with reductions in Arctic sea ice cover in recent decades |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
In recent decades, the Arctic sea ice has been declining at a rapid pace as the Arctic warms at a rate of twice the global average. The underlying physical mechanisms for the Arctic warming and accelerated sea ice retreat are not fully understood. In this study, we apply a relatively novel statistical method called self-organizing maps (SOM) along with composite analysis to examine the trend and variability of autumn Arctic sea ice in the past three decades and their relationships to large-scale atmospheric circulation changes. Our statistical results show that the anomalous autumn Arctic dipole (AD) (Node 1) and the Arctic Oscillation (AO) (Node 9) could explain in a statistical sense as much as 50 % of autumn sea ice decline between 1979 and 2016. The Arctic atmospheric circulation anomalies associated with anomalous sea-surface temperature (SST) patterns over the North Pacific and North Atlantic influence Arctic sea ice primarily through anomalous temperature and water vapor advection and associated radiative feedback. |
format |
Article in Journal/Newspaper |
author |
L. Yu S. Zhong |
author_facet |
L. Yu S. Zhong |
author_sort |
L. Yu |
title |
Changes in sea-surface temperature and atmospheric circulation patterns associated with reductions in Arctic sea ice cover in recent decades |
title_short |
Changes in sea-surface temperature and atmospheric circulation patterns associated with reductions in Arctic sea ice cover in recent decades |
title_full |
Changes in sea-surface temperature and atmospheric circulation patterns associated with reductions in Arctic sea ice cover in recent decades |
title_fullStr |
Changes in sea-surface temperature and atmospheric circulation patterns associated with reductions in Arctic sea ice cover in recent decades |
title_full_unstemmed |
Changes in sea-surface temperature and atmospheric circulation patterns associated with reductions in Arctic sea ice cover in recent decades |
title_sort |
changes in sea-surface temperature and atmospheric circulation patterns associated with reductions in arctic sea ice cover in recent decades |
publisher |
Copernicus Publications |
publishDate |
2018 |
url |
https://doi.org/10.5194/acp-18-14149-2018 https://doaj.org/article/4712c8bec84240698c88e107604442db |
geographic |
Arctic Pacific |
geographic_facet |
Arctic Pacific |
genre |
Arctic North Atlantic Sea ice |
genre_facet |
Arctic North Atlantic Sea ice |
op_source |
Atmospheric Chemistry and Physics, Vol 18, Pp 14149-14159 (2018) |
op_relation |
https://www.atmos-chem-phys.net/18/14149/2018/acp-18-14149-2018.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-18-14149-2018 1680-7316 1680-7324 https://doaj.org/article/4712c8bec84240698c88e107604442db |
op_doi |
https://doi.org/10.5194/acp-18-14149-2018 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
18 |
container_issue |
19 |
container_start_page |
14149 |
op_container_end_page |
14159 |
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1766305781308719104 |