Tropical teleconnection impacts on Antarctic climate changes
Over the modern satellite era, substantial connected climatic changes have been observed in the Antarctic, including atmospheric and oceanic warming in West Antarctica and on the Antarctic Peninsula, accelerating ice sheet thinning, and accompanied by expanding sea ice area followed more recently by...
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ftcolumbiauniv:oai:academiccommons.columbia.edu:10.7916/4zge-s222 2023-05-15T14:01:27+02:00 Tropical teleconnection impacts on Antarctic climate changes Li, Xichen Cai, Wenju Meehl, Gerald A. Chen, Dake Yuan, Xiaojun Raphael, Marilyn Holland, David M. Ding, Qinghua Fogt, Ryan L. Markle, Bradley R. Wang, Guojian Bromwich, David H. Turner, John Xie, Shang-Ping Steig, Eric J. Gille, Sarah T. Xiao, Cunde Wu, Bingyi Lazzara, Matthew A. Chen, Xianyao Stammerjohn, Sharon Holland, Paul R. Holland, Marika M. Cheng, Xiao Price, Stephen F. Wang, Zhaomin Bitz, Cecilia M. Shi, Jiuxin Gerber, Edwin P. Liang, Xi Goosse, Hugues Yoo, Changhyun Ding, Minghu Geng, Lei Xin, Meijiao Li, Chuanjin Dou, Tingfeng Liu, Chengyan Sun, Weijun Wang, Xinyue Song, Chentao 2021 https://doi.org/10.7916/4zge-s222 English eng https://doi.org/10.7916/4zge-s222 Atmospheric circulation Teleconnections (Climatology) Oceanography Climatology Climatic changes Articles 2021 ftcolumbiauniv https://doi.org/10.7916/4zge-s222 2022-04-09T22:19:39Z Over the modern satellite era, substantial connected climatic changes have been observed in the Antarctic, including atmospheric and oceanic warming in West Antarctica and on the Antarctic Peninsula, accelerating ice sheet thinning, and accompanied by expanding sea ice area followed more recently by sea ice loss. Although forced by increasing emissions of greenhouse gases and Antarctic ozone depletion, the observed Antarctic changes, characterized by strong zonally asymmetric features, have been partially attributed to tropical-polar teleconnections, primarily through Rossby wave dynamics. In this Review, we synthesize understanding of tropical teleconnections to the Southern Hemisphere extratropics, focusing on the physical mechanisms and climatic impacts on multi-decadal timescales. These teleconnections contributed to a range of observed Antarctic and Southern Ocean changes, including regional rapid surface warming, pre-2015 sea ice expansion and its sudden reduction thereafter, changes in ocean heat content, and accelerated thinning of most of the Antarctic ice sheet. However, due to limited observations and inherent model biases, uncertainties remain in understanding and assessing the importance of these teleconnections versus those due to greenhouse gases, ozone recovery, and southern-hemispheric high-latitude internal variability (for example, the Southern Annular Mode). Further progress will be enabled through sustained efforts towards long-term observations with a pan-Antarctic approach, and high-resolution climate models with more realistic dynamics and parameterizations. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Ice Sheet Sea ice Southern Ocean West Antarctica Columbia University: Academic Commons Antarctic Southern Ocean The Antarctic Antarctic Peninsula West Antarctica |
institution |
Open Polar |
collection |
Columbia University: Academic Commons |
op_collection_id |
ftcolumbiauniv |
language |
English |
topic |
Atmospheric circulation Teleconnections (Climatology) Oceanography Climatology Climatic changes |
spellingShingle |
Atmospheric circulation Teleconnections (Climatology) Oceanography Climatology Climatic changes Li, Xichen Cai, Wenju Meehl, Gerald A. Chen, Dake Yuan, Xiaojun Raphael, Marilyn Holland, David M. Ding, Qinghua Fogt, Ryan L. Markle, Bradley R. Wang, Guojian Bromwich, David H. Turner, John Xie, Shang-Ping Steig, Eric J. Gille, Sarah T. Xiao, Cunde Wu, Bingyi Lazzara, Matthew A. Chen, Xianyao Stammerjohn, Sharon Holland, Paul R. Holland, Marika M. Cheng, Xiao Price, Stephen F. Wang, Zhaomin Bitz, Cecilia M. Shi, Jiuxin Gerber, Edwin P. Liang, Xi Goosse, Hugues Yoo, Changhyun Ding, Minghu Geng, Lei Xin, Meijiao Li, Chuanjin Dou, Tingfeng Liu, Chengyan Sun, Weijun Wang, Xinyue Song, Chentao Tropical teleconnection impacts on Antarctic climate changes |
topic_facet |
Atmospheric circulation Teleconnections (Climatology) Oceanography Climatology Climatic changes |
description |
Over the modern satellite era, substantial connected climatic changes have been observed in the Antarctic, including atmospheric and oceanic warming in West Antarctica and on the Antarctic Peninsula, accelerating ice sheet thinning, and accompanied by expanding sea ice area followed more recently by sea ice loss. Although forced by increasing emissions of greenhouse gases and Antarctic ozone depletion, the observed Antarctic changes, characterized by strong zonally asymmetric features, have been partially attributed to tropical-polar teleconnections, primarily through Rossby wave dynamics. In this Review, we synthesize understanding of tropical teleconnections to the Southern Hemisphere extratropics, focusing on the physical mechanisms and climatic impacts on multi-decadal timescales. These teleconnections contributed to a range of observed Antarctic and Southern Ocean changes, including regional rapid surface warming, pre-2015 sea ice expansion and its sudden reduction thereafter, changes in ocean heat content, and accelerated thinning of most of the Antarctic ice sheet. However, due to limited observations and inherent model biases, uncertainties remain in understanding and assessing the importance of these teleconnections versus those due to greenhouse gases, ozone recovery, and southern-hemispheric high-latitude internal variability (for example, the Southern Annular Mode). Further progress will be enabled through sustained efforts towards long-term observations with a pan-Antarctic approach, and high-resolution climate models with more realistic dynamics and parameterizations. |
format |
Article in Journal/Newspaper |
author |
Li, Xichen Cai, Wenju Meehl, Gerald A. Chen, Dake Yuan, Xiaojun Raphael, Marilyn Holland, David M. Ding, Qinghua Fogt, Ryan L. Markle, Bradley R. Wang, Guojian Bromwich, David H. Turner, John Xie, Shang-Ping Steig, Eric J. Gille, Sarah T. Xiao, Cunde Wu, Bingyi Lazzara, Matthew A. Chen, Xianyao Stammerjohn, Sharon Holland, Paul R. Holland, Marika M. Cheng, Xiao Price, Stephen F. Wang, Zhaomin Bitz, Cecilia M. Shi, Jiuxin Gerber, Edwin P. Liang, Xi Goosse, Hugues Yoo, Changhyun Ding, Minghu Geng, Lei Xin, Meijiao Li, Chuanjin Dou, Tingfeng Liu, Chengyan Sun, Weijun Wang, Xinyue Song, Chentao |
author_facet |
Li, Xichen Cai, Wenju Meehl, Gerald A. Chen, Dake Yuan, Xiaojun Raphael, Marilyn Holland, David M. Ding, Qinghua Fogt, Ryan L. Markle, Bradley R. Wang, Guojian Bromwich, David H. Turner, John Xie, Shang-Ping Steig, Eric J. Gille, Sarah T. Xiao, Cunde Wu, Bingyi Lazzara, Matthew A. Chen, Xianyao Stammerjohn, Sharon Holland, Paul R. Holland, Marika M. Cheng, Xiao Price, Stephen F. Wang, Zhaomin Bitz, Cecilia M. Shi, Jiuxin Gerber, Edwin P. Liang, Xi Goosse, Hugues Yoo, Changhyun Ding, Minghu Geng, Lei Xin, Meijiao Li, Chuanjin Dou, Tingfeng Liu, Chengyan Sun, Weijun Wang, Xinyue Song, Chentao |
author_sort |
Li, Xichen |
title |
Tropical teleconnection impacts on Antarctic climate changes |
title_short |
Tropical teleconnection impacts on Antarctic climate changes |
title_full |
Tropical teleconnection impacts on Antarctic climate changes |
title_fullStr |
Tropical teleconnection impacts on Antarctic climate changes |
title_full_unstemmed |
Tropical teleconnection impacts on Antarctic climate changes |
title_sort |
tropical teleconnection impacts on antarctic climate changes |
publishDate |
2021 |
url |
https://doi.org/10.7916/4zge-s222 |
geographic |
Antarctic Southern Ocean The Antarctic Antarctic Peninsula West Antarctica |
geographic_facet |
Antarctic Southern Ocean The Antarctic Antarctic Peninsula West Antarctica |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Ice Sheet Sea ice Southern Ocean West Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Ice Sheet Sea ice Southern Ocean West Antarctica |
op_relation |
https://doi.org/10.7916/4zge-s222 |
op_doi |
https://doi.org/10.7916/4zge-s222 |
_version_ |
1766271277912293376 |