Shifting El Niño inhibits summer Arctic warming and Arctic sea-ice melting over the Canada Basin
Arctic climate changes include not only changes in trends and mean states but also strong interannual variations in various fields. Although it is known that tropical-extratropical teleconnection is sensitive to changes in flavours of El Niño, whether Arctic climate variability is linked to El Niño,...
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ftunivsthongkong:oai:repository.hkust.edu.hk:1783.1-110003 2023-05-15T14:24:44+02:00 Shifting El Niño inhibits summer Arctic warming and Arctic sea-ice melting over the Canada Basin Hu, Chundi Yang, Song Wu, Qigang Li, Zhenning Chen, Junwen Deng, Kaiqiang Zhang, Tuantuan Zhang, Chengyang 2016 https://repository.hkust.edu.hk/ir/Record/1783.1-110003 https://doi.org/10.1038/ncomms11721 http://lbdiscover.ust.hk/uresolver?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rfr_id=info:sid/HKUST:SPI&rft.genre=article&rft.issn=2041-1723&rft.volume=7&rft.issue=&rft.date=2016&rft.spage=&rft.aulast=Hu&rft.aufirst=&rft.atitle=Shifting+El+Ni%C3%B1o+inhibits+summer+Arctic+warming+and+Arctic+sea-ice+melting+over+the+Canada+Basin&rft.title=Nature+Communications http://www.scopus.com/record/display.url?eid=2-s2.0-84973354111&origin=inward http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=LinksAMR&SrcApp=PARTNER_APP&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000377143500001 English eng https://repository.hkust.edu.hk/ir/Record/1783.1-110003 Nature Communications, v. 7, June 2016, article number 11721 2041-1723 https://doi.org/10.1038/ncomms11721 http://lbdiscover.ust.hk/uresolver?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rfr_id=info:sid/HKUST:SPI&rft.genre=article&rft.issn=2041-1723&rft.volume=7&rft.issue=&rft.date=2016&rft.spage=&rft.aulast=Hu&rft.aufirst=&rft.atitle=Shifting+El+Ni%C3%B1o+inhibits+summer+Arctic+warming+and+Arctic+sea-ice+melting+over+the+Canada+Basin&rft.title=Nature+Communications http://www.scopus.com/record/display.url?eid=2-s2.0-84973354111&origin=inward http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=LinksAMR&SrcApp=PARTNER_APP&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000377143500001 Article 2016 ftunivsthongkong https://doi.org/10.1038/ncomms11721 2023-02-24T01:10:06Z Arctic climate changes include not only changes in trends and mean states but also strong interannual variations in various fields. Although it is known that tropical-extratropical teleconnection is sensitive to changes in flavours of El Niño, whether Arctic climate variability is linked to El Niño, in particular on interannual timescale, remains unclear. Here we demonstrate for the first time a long-range linkage between central Pacific (CP) El Niño and summer Arctic climate. Observations show that the CP warming related to CP El Niño events deepens the tropospheric Arctic polar vortex and strengthens the circumpolar westerly wind, thereby contributing to inhibiting summer Arctic warming and sea-ice melting. Atmospheric model experiments can generally capture the observed responses of Arctic circulation and robust surface cooling to CP El Niño forcing. We suggest that identification of the equator-Arctic teleconnection, via the 'atmospheric bridge', can potentially contribute to improving the skill of predicting Arctic climate. Article in Journal/Newspaper Arctic Arctic canada basin Sea ice The Hong Kong University of Science and Technology: HKUST Institutional Repository Arctic Canada Pacific Nature Communications 7 1 |
institution |
Open Polar |
collection |
The Hong Kong University of Science and Technology: HKUST Institutional Repository |
op_collection_id |
ftunivsthongkong |
language |
English |
description |
Arctic climate changes include not only changes in trends and mean states but also strong interannual variations in various fields. Although it is known that tropical-extratropical teleconnection is sensitive to changes in flavours of El Niño, whether Arctic climate variability is linked to El Niño, in particular on interannual timescale, remains unclear. Here we demonstrate for the first time a long-range linkage between central Pacific (CP) El Niño and summer Arctic climate. Observations show that the CP warming related to CP El Niño events deepens the tropospheric Arctic polar vortex and strengthens the circumpolar westerly wind, thereby contributing to inhibiting summer Arctic warming and sea-ice melting. Atmospheric model experiments can generally capture the observed responses of Arctic circulation and robust surface cooling to CP El Niño forcing. We suggest that identification of the equator-Arctic teleconnection, via the 'atmospheric bridge', can potentially contribute to improving the skill of predicting Arctic climate. |
format |
Article in Journal/Newspaper |
author |
Hu, Chundi Yang, Song Wu, Qigang Li, Zhenning Chen, Junwen Deng, Kaiqiang Zhang, Tuantuan Zhang, Chengyang |
spellingShingle |
Hu, Chundi Yang, Song Wu, Qigang Li, Zhenning Chen, Junwen Deng, Kaiqiang Zhang, Tuantuan Zhang, Chengyang Shifting El Niño inhibits summer Arctic warming and Arctic sea-ice melting over the Canada Basin |
author_facet |
Hu, Chundi Yang, Song Wu, Qigang Li, Zhenning Chen, Junwen Deng, Kaiqiang Zhang, Tuantuan Zhang, Chengyang |
author_sort |
Hu, Chundi |
title |
Shifting El Niño inhibits summer Arctic warming and Arctic sea-ice melting over the Canada Basin |
title_short |
Shifting El Niño inhibits summer Arctic warming and Arctic sea-ice melting over the Canada Basin |
title_full |
Shifting El Niño inhibits summer Arctic warming and Arctic sea-ice melting over the Canada Basin |
title_fullStr |
Shifting El Niño inhibits summer Arctic warming and Arctic sea-ice melting over the Canada Basin |
title_full_unstemmed |
Shifting El Niño inhibits summer Arctic warming and Arctic sea-ice melting over the Canada Basin |
title_sort |
shifting el niño inhibits summer arctic warming and arctic sea-ice melting over the canada basin |
publishDate |
2016 |
url |
https://repository.hkust.edu.hk/ir/Record/1783.1-110003 https://doi.org/10.1038/ncomms11721 http://lbdiscover.ust.hk/uresolver?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rfr_id=info:sid/HKUST:SPI&rft.genre=article&rft.issn=2041-1723&rft.volume=7&rft.issue=&rft.date=2016&rft.spage=&rft.aulast=Hu&rft.aufirst=&rft.atitle=Shifting+El+Ni%C3%B1o+inhibits+summer+Arctic+warming+and+Arctic+sea-ice+melting+over+the+Canada+Basin&rft.title=Nature+Communications http://www.scopus.com/record/display.url?eid=2-s2.0-84973354111&origin=inward http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=LinksAMR&SrcApp=PARTNER_APP&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000377143500001 |
geographic |
Arctic Canada Pacific |
geographic_facet |
Arctic Canada Pacific |
genre |
Arctic Arctic canada basin Sea ice |
genre_facet |
Arctic Arctic canada basin Sea ice |
op_relation |
https://repository.hkust.edu.hk/ir/Record/1783.1-110003 Nature Communications, v. 7, June 2016, article number 11721 2041-1723 https://doi.org/10.1038/ncomms11721 http://lbdiscover.ust.hk/uresolver?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rfr_id=info:sid/HKUST:SPI&rft.genre=article&rft.issn=2041-1723&rft.volume=7&rft.issue=&rft.date=2016&rft.spage=&rft.aulast=Hu&rft.aufirst=&rft.atitle=Shifting+El+Ni%C3%B1o+inhibits+summer+Arctic+warming+and+Arctic+sea-ice+melting+over+the+Canada+Basin&rft.title=Nature+Communications http://www.scopus.com/record/display.url?eid=2-s2.0-84973354111&origin=inward http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=LinksAMR&SrcApp=PARTNER_APP&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000377143500001 |
op_doi |
https://doi.org/10.1038/ncomms11721 |
container_title |
Nature Communications |
container_volume |
7 |
container_issue |
1 |
_version_ |
1766297171583303680 |