An interdecadal climate dipole between Northeast Asia and Antarctica over the past five centuries
Climate models emphasize the need to investigate inter-hemispheric climatic interactions. However, these models often underestimate the inter-hemispheric differences in climate change. With the wide application of reanalysis data since 1948, we identified a dipole pattern between the geopotential he...
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ftunivbern:oai:boris.unibe.ch:113572 2023-08-20T03:59:57+02:00 An interdecadal climate dipole between Northeast Asia and Antarctica over the past five centuries Fang, Keyan Chen, Deliang Guo, Zhengtang Zhao, Yan Frank, David He, Maosheng Zhou, Feifei Shi, Feng Seppä, Heikki Zhang, Peng Neukom, Raphael 2019 application/pdf https://boris.unibe.ch/113572/1/Fang_et_al_2018_2.pdf https://boris.unibe.ch/113572/ eng eng Springer https://boris.unibe.ch/113572/ info:eu-repo/semantics/openAccess Fang, Keyan; Chen, Deliang; Guo, Zhengtang; Zhao, Yan; Frank, David; He, Maosheng; Zhou, Feifei; Shi, Feng; Seppä, Heikki; Zhang, Peng; Neukom, Raphael (2019). An interdecadal climate dipole between Northeast Asia and Antarctica over the past five centuries. Climate dynamics, 52(1-2), pp. 765-775. Springer 10.1007/s00382-018-4161-z <http://dx.doi.org/10.1007/s00382-018-4161-z> 550 Earth sciences & geology 910 Geography & travel info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion PeerReviewed 2019 ftunivbern https://doi.org/10.1007/s00382-018-4161-z 2023-07-31T21:42:29Z Climate models emphasize the need to investigate inter-hemispheric climatic interactions. However, these models often underestimate the inter-hemispheric differences in climate change. With the wide application of reanalysis data since 1948, we identified a dipole pattern between the geopotential heights (GPHs) in Northeast Asia and Antarctica on the interdecadal scale in boreal summer. This Northeast Asia/Antarctica (NAA) dipole pattern is not conspicuous on the interannual scale, probably in that the interannual inter-hemispheric climate interaction is masked by strong interannual signals in the tropics associated with the El Niño-Southern Oscillation (ENSO). Unfortunately, the instrumental records are not sufficiently longlasting to detect the interdecadal variability of the NAA. We thus reconstructed GPHs since 1565, making using the proxy records mostly from tree rings in Northeast Asia and ice cores from Antarctica. The strength of the NAA is time-varying and it is most conspicuous in the eighteenth century and after the late twentieth century. The strength of the NAA matches well with the variations of the solar radiation and tends to increase in along with its enhancement. In boreal summer, enhanced heating associated with high solar radiation in the Northern Hemisphere drives more air masses from the South to the North. This inter-hemispheric interaction is particularly strong in East Asia as a result of the Asian summer monsoon. Northeast Asia and Antarctica appear to be the key regions responsible for inter-hemispheric interactions on the interdecadal scale in boreal summer since they are respectively located at the front and the end of this inter-hemispheric trajectory. Article in Journal/Newspaper Antarc* Antarctica BORIS (Bern Open Repository and Information System, University of Bern) Climate Dynamics 52 1-2 765 775 |
institution |
Open Polar |
collection |
BORIS (Bern Open Repository and Information System, University of Bern) |
op_collection_id |
ftunivbern |
language |
English |
topic |
550 Earth sciences & geology 910 Geography & travel |
spellingShingle |
550 Earth sciences & geology 910 Geography & travel Fang, Keyan Chen, Deliang Guo, Zhengtang Zhao, Yan Frank, David He, Maosheng Zhou, Feifei Shi, Feng Seppä, Heikki Zhang, Peng Neukom, Raphael An interdecadal climate dipole between Northeast Asia and Antarctica over the past five centuries |
topic_facet |
550 Earth sciences & geology 910 Geography & travel |
description |
Climate models emphasize the need to investigate inter-hemispheric climatic interactions. However, these models often underestimate the inter-hemispheric differences in climate change. With the wide application of reanalysis data since 1948, we identified a dipole pattern between the geopotential heights (GPHs) in Northeast Asia and Antarctica on the interdecadal scale in boreal summer. This Northeast Asia/Antarctica (NAA) dipole pattern is not conspicuous on the interannual scale, probably in that the interannual inter-hemispheric climate interaction is masked by strong interannual signals in the tropics associated with the El Niño-Southern Oscillation (ENSO). Unfortunately, the instrumental records are not sufficiently longlasting to detect the interdecadal variability of the NAA. We thus reconstructed GPHs since 1565, making using the proxy records mostly from tree rings in Northeast Asia and ice cores from Antarctica. The strength of the NAA is time-varying and it is most conspicuous in the eighteenth century and after the late twentieth century. The strength of the NAA matches well with the variations of the solar radiation and tends to increase in along with its enhancement. In boreal summer, enhanced heating associated with high solar radiation in the Northern Hemisphere drives more air masses from the South to the North. This inter-hemispheric interaction is particularly strong in East Asia as a result of the Asian summer monsoon. Northeast Asia and Antarctica appear to be the key regions responsible for inter-hemispheric interactions on the interdecadal scale in boreal summer since they are respectively located at the front and the end of this inter-hemispheric trajectory. |
format |
Article in Journal/Newspaper |
author |
Fang, Keyan Chen, Deliang Guo, Zhengtang Zhao, Yan Frank, David He, Maosheng Zhou, Feifei Shi, Feng Seppä, Heikki Zhang, Peng Neukom, Raphael |
author_facet |
Fang, Keyan Chen, Deliang Guo, Zhengtang Zhao, Yan Frank, David He, Maosheng Zhou, Feifei Shi, Feng Seppä, Heikki Zhang, Peng Neukom, Raphael |
author_sort |
Fang, Keyan |
title |
An interdecadal climate dipole between Northeast Asia and Antarctica over the past five centuries |
title_short |
An interdecadal climate dipole between Northeast Asia and Antarctica over the past five centuries |
title_full |
An interdecadal climate dipole between Northeast Asia and Antarctica over the past five centuries |
title_fullStr |
An interdecadal climate dipole between Northeast Asia and Antarctica over the past five centuries |
title_full_unstemmed |
An interdecadal climate dipole between Northeast Asia and Antarctica over the past five centuries |
title_sort |
interdecadal climate dipole between northeast asia and antarctica over the past five centuries |
publisher |
Springer |
publishDate |
2019 |
url |
https://boris.unibe.ch/113572/1/Fang_et_al_2018_2.pdf https://boris.unibe.ch/113572/ |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Fang, Keyan; Chen, Deliang; Guo, Zhengtang; Zhao, Yan; Frank, David; He, Maosheng; Zhou, Feifei; Shi, Feng; Seppä, Heikki; Zhang, Peng; Neukom, Raphael (2019). An interdecadal climate dipole between Northeast Asia and Antarctica over the past five centuries. Climate dynamics, 52(1-2), pp. 765-775. Springer 10.1007/s00382-018-4161-z <http://dx.doi.org/10.1007/s00382-018-4161-z> |
op_relation |
https://boris.unibe.ch/113572/ |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1007/s00382-018-4161-z |
container_title |
Climate Dynamics |
container_volume |
52 |
container_issue |
1-2 |
container_start_page |
765 |
op_container_end_page |
775 |
_version_ |
1774716175691808768 |