Understanding the Eastward Shift and Intensification of the ENSO Teleconnection Over South Pacific and Antarctica Under Greenhouse Warming
The Pacific–South America (PSA) teleconnection pattern triggered by the El Niño/Southern Oscillation (ENSO) is suggested to be moving eastward and intensifying under global warming. However, the underlying mechanism is not completely understood. Previous studies have proposed that the movement of th...
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ftdoajarticles:oai:doaj.org/article:22bd083105af4a028326df9cae3f6695 2023-05-15T13:33:52+02:00 Understanding the Eastward Shift and Intensification of the ENSO Teleconnection Over South Pacific and Antarctica Under Greenhouse Warming Ya Wang Gang Huang Kaiming Hu Weichen Tao Hainan Gong Kai Yang Haosu Tang 2022-07-01T00:00:00Z https://doi.org/10.3389/feart.2022.916624 https://doaj.org/article/22bd083105af4a028326df9cae3f6695 EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/feart.2022.916624/full https://doaj.org/toc/2296-6463 2296-6463 doi:10.3389/feart.2022.916624 https://doaj.org/article/22bd083105af4a028326df9cae3f6695 Frontiers in Earth Science, Vol 10 (2022) El Niño/Southern oscillation Global Warming Subtropical Jet Stream Pacific–South American teleconnection pattern ENSO teleconnection Science Q article 2022 ftdoajarticles https://doi.org/10.3389/feart.2022.916624 2022-12-30T21:19:07Z The Pacific–South America (PSA) teleconnection pattern triggered by the El Niño/Southern Oscillation (ENSO) is suggested to be moving eastward and intensifying under global warming. However, the underlying mechanism is not completely understood. Previous studies have proposed that the movement of the PSA teleconnection pattern is attributable to the eastward shift of the tropical Pacific ENSO-driven rainfall anomalies in response to the projected El Niño-like sea surface temperature (SST) warming pattern. In this study, we found that with uniform warming, models will also simulate an eastward movement of the PSA teleconnection pattern, without the impact of the uneven SST warming pattern. Further investigation reveals that future changes in the climatology of the atmospheric circulation, particularly the movement of the exit region of the subtropical jet stream, can also contribute to the eastward shift of the PSA teleconnection pattern by modifying the conversion of mean kinetic energy to eddy kinetic energy. Article in Journal/Newspaper Antarc* Antarctica Directory of Open Access Journals: DOAJ Articles Pacific Frontiers in Earth Science 10 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
El Niño/Southern oscillation Global Warming Subtropical Jet Stream Pacific–South American teleconnection pattern ENSO teleconnection Science Q |
spellingShingle |
El Niño/Southern oscillation Global Warming Subtropical Jet Stream Pacific–South American teleconnection pattern ENSO teleconnection Science Q Ya Wang Gang Huang Kaiming Hu Weichen Tao Hainan Gong Kai Yang Haosu Tang Understanding the Eastward Shift and Intensification of the ENSO Teleconnection Over South Pacific and Antarctica Under Greenhouse Warming |
topic_facet |
El Niño/Southern oscillation Global Warming Subtropical Jet Stream Pacific–South American teleconnection pattern ENSO teleconnection Science Q |
description |
The Pacific–South America (PSA) teleconnection pattern triggered by the El Niño/Southern Oscillation (ENSO) is suggested to be moving eastward and intensifying under global warming. However, the underlying mechanism is not completely understood. Previous studies have proposed that the movement of the PSA teleconnection pattern is attributable to the eastward shift of the tropical Pacific ENSO-driven rainfall anomalies in response to the projected El Niño-like sea surface temperature (SST) warming pattern. In this study, we found that with uniform warming, models will also simulate an eastward movement of the PSA teleconnection pattern, without the impact of the uneven SST warming pattern. Further investigation reveals that future changes in the climatology of the atmospheric circulation, particularly the movement of the exit region of the subtropical jet stream, can also contribute to the eastward shift of the PSA teleconnection pattern by modifying the conversion of mean kinetic energy to eddy kinetic energy. |
format |
Article in Journal/Newspaper |
author |
Ya Wang Gang Huang Kaiming Hu Weichen Tao Hainan Gong Kai Yang Haosu Tang |
author_facet |
Ya Wang Gang Huang Kaiming Hu Weichen Tao Hainan Gong Kai Yang Haosu Tang |
author_sort |
Ya Wang |
title |
Understanding the Eastward Shift and Intensification of the ENSO Teleconnection Over South Pacific and Antarctica Under Greenhouse Warming |
title_short |
Understanding the Eastward Shift and Intensification of the ENSO Teleconnection Over South Pacific and Antarctica Under Greenhouse Warming |
title_full |
Understanding the Eastward Shift and Intensification of the ENSO Teleconnection Over South Pacific and Antarctica Under Greenhouse Warming |
title_fullStr |
Understanding the Eastward Shift and Intensification of the ENSO Teleconnection Over South Pacific and Antarctica Under Greenhouse Warming |
title_full_unstemmed |
Understanding the Eastward Shift and Intensification of the ENSO Teleconnection Over South Pacific and Antarctica Under Greenhouse Warming |
title_sort |
understanding the eastward shift and intensification of the enso teleconnection over south pacific and antarctica under greenhouse warming |
publisher |
Frontiers Media S.A. |
publishDate |
2022 |
url |
https://doi.org/10.3389/feart.2022.916624 https://doaj.org/article/22bd083105af4a028326df9cae3f6695 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Frontiers in Earth Science, Vol 10 (2022) |
op_relation |
https://www.frontiersin.org/articles/10.3389/feart.2022.916624/full https://doaj.org/toc/2296-6463 2296-6463 doi:10.3389/feart.2022.916624 https://doaj.org/article/22bd083105af4a028326df9cae3f6695 |
op_doi |
https://doi.org/10.3389/feart.2022.916624 |
container_title |
Frontiers in Earth Science |
container_volume |
10 |
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1766046556834758656 |