CLIMATIC VARIABILITY OF THE SOUTH PACIFIC OCEAN DURING 1900–2010 IN THE ENVIRONMENTAL RECORDS OF WEST ANTARCTICA

In this work, we present the climatic evolution of the South Pacific Ocean from 1900 to 2010 and its environmental influence over West Antarctica. We analyzed the sea surface temperature, mean sea level pressure, and meridional wind (850 hPa) of the South Pacific Ocean using ERA-20C reanalysis (Euro...

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Published in:Journal of Geophysical Research: Atmospheres
Main Authors: Rosa, José Mauro Dalla, Simões, Jefferson Cardia, Reis, Pedro Amaral, Aquino, Francisco Eliseu, Thoen, Isaías Ullmann, Bernardo, Ronaldo Torma, Auger, Jeffrey Daniel
Format: Article in Journal/Newspaper
Language:English
Published: Universidade Federal da Grande Dourados 2021
Subjects:
Pacific Ocean. West Antarctica. Climatology
Amundsen Sea
Antarctic
Mount Johns
Pacific
The Antarctic
West Antarctic Ice Sheet
West Antarctica
Antarc*
Antarctica
ice core
Ice Sheet
Sea ice
Online Access:https://ojs.ufgd.edu.br/index.php/rbclima/article/view/15185
id ftunifgdourados:oai:ojs.www.periodicos.ufgd.edu.br:article/15185
record_format openpolar
institution Open Polar
collection Portal de Periódicos UFGD
op_collection_id ftunifgdourados
language English
topic Pacific Ocean. West Antarctica. Climatology
spellingShingle Pacific Ocean. West Antarctica. Climatology
Rosa, José Mauro Dalla
Simões, Jefferson Cardia
Reis, Pedro Amaral
Aquino, Francisco Eliseu
Thoen, Isaías Ullmann
Bernardo, Ronaldo Torma
Auger, Jeffrey Daniel
CLIMATIC VARIABILITY OF THE SOUTH PACIFIC OCEAN DURING 1900–2010 IN THE ENVIRONMENTAL RECORDS OF WEST ANTARCTICA
topic_facet Pacific Ocean. West Antarctica. Climatology
description In this work, we present the climatic evolution of the South Pacific Ocean from 1900 to 2010 and its environmental influence over West Antarctica. We analyzed the sea surface temperature, mean sea level pressure, and meridional wind (850 hPa) of the South Pacific Ocean using ERA-20C reanalysis (European Center for Medium-Range Weather Forecasts), and compared these parameters with the regional temperature obtained indirectly (by proxy) from two ice cores from the West Antarctic ice sheet (Mount Johns and Ferrigno). The sea surface temperature increased in almost the entire South Pacific Ocean from 1900 to 2010; in the equatorial Pacific, it increased by 2.1 °C from 1916 to 1997, while in the middle latitudes of the South Pacific, it increased by 1.1 °C from 1923 to 2001. This increase occurred concurrently with a positive trend in the Southern Annular Mode and a change the mean sea level pressure anomaly from 1960 onwards. This atmospheric pressure increased at middle latitudes and decreased around Antarctica in the circumpolar low-pressure zone, strengthening the Amundsen Sea Low and changing the pattern of the meridional wind anomaly (850 hPa) between medium and high latitudes in the South Pacific. Furthermore, since 1960, a greater flow from north to south (onshore) has predominated from the southeast South Pacific to the north of West Antarctica. Such changes caused a reduction in the sea ice extent in the Amundsen and Bellingshausen Seas and an increase in average atmospheric temperature primarily in the coastal region of West Antarctica, as demonstrated by the Ferrigno ice core record. Conversely, the Mount Johns region did not show the same trend in atmospheric temperature, as it was influenced mainly by cold air masses from the Antarctic ice sheet.
format Article in Journal/Newspaper
author Rosa, José Mauro Dalla
Simões, Jefferson Cardia
Reis, Pedro Amaral
Aquino, Francisco Eliseu
Thoen, Isaías Ullmann
Bernardo, Ronaldo Torma
Auger, Jeffrey Daniel
author_facet Rosa, José Mauro Dalla
Simões, Jefferson Cardia
Reis, Pedro Amaral
Aquino, Francisco Eliseu
Thoen, Isaías Ullmann
Bernardo, Ronaldo Torma
Auger, Jeffrey Daniel
author_sort Rosa, José Mauro Dalla
title CLIMATIC VARIABILITY OF THE SOUTH PACIFIC OCEAN DURING 1900–2010 IN THE ENVIRONMENTAL RECORDS OF WEST ANTARCTICA
title_short CLIMATIC VARIABILITY OF THE SOUTH PACIFIC OCEAN DURING 1900–2010 IN THE ENVIRONMENTAL RECORDS OF WEST ANTARCTICA
title_full CLIMATIC VARIABILITY OF THE SOUTH PACIFIC OCEAN DURING 1900–2010 IN THE ENVIRONMENTAL RECORDS OF WEST ANTARCTICA
title_fullStr CLIMATIC VARIABILITY OF THE SOUTH PACIFIC OCEAN DURING 1900–2010 IN THE ENVIRONMENTAL RECORDS OF WEST ANTARCTICA
title_full_unstemmed CLIMATIC VARIABILITY OF THE SOUTH PACIFIC OCEAN DURING 1900–2010 IN THE ENVIRONMENTAL RECORDS OF WEST ANTARCTICA
title_sort climatic variability of the south pacific ocean during 1900–2010 in the environmental records of west antarctica
publisher Universidade Federal da Grande Dourados
publishDate 2021
url https://ojs.ufgd.edu.br/index.php/rbclima/article/view/15185
long_lat ENVELOPE(161.017,161.017,-77.326,-77.326)
geographic Amundsen Sea
Antarctic
Mount Johns
Pacific
The Antarctic
West Antarctic Ice Sheet
West Antarctica
geographic_facet Amundsen Sea
Antarctic
Mount Johns
Pacific
The Antarctic
West Antarctic Ice Sheet
West Antarctica
genre Amundsen Sea
Antarc*
Antarctic
Antarctica
ice core
Ice Sheet
Sea ice
West Antarctica
genre_facet Amundsen Sea
Antarc*
Antarctic
Antarctica
ice core
Ice Sheet
Sea ice
West Antarctica
op_source Revista Brasileira de Climatologia; v. 29 (2021); 273-298
2237-8642
op_relation https://ojs.ufgd.edu.br/index.php/rbclima/article/view/15185/8151
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https://ojs.ufgd.edu.br/index.php/rbclima/article/view/15185
op_rights Direitos autorais 2021 José Mauro Dalla Rosa, Jefferson Cardia Simões, Pedro Amaral Reis, Francisco Eliseu Aquino, Isaías Ullmann Thoen, Ronaldo Torma Bernardo, Jeffrey Daniel Auger
op_doi https://doi.org/10.1038/nclimate2235
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https://doi.org/10.1175/JCLI-D-16-0891.1
https://doi.org/10.3402/tellusa.v16i4.8993
https://doi.org/10.1126/science.aaz5491
container_title Journal of Geophysical Research: Atmospheres
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spelling ftunifgdourados:oai:ojs.www.periodicos.ufgd.edu.br:article/15185 2023-05-15T13:24:12+02:00 CLIMATIC VARIABILITY OF THE SOUTH PACIFIC OCEAN DURING 1900–2010 IN THE ENVIRONMENTAL RECORDS OF WEST ANTARCTICA Rosa, José Mauro Dalla Simões, Jefferson Cardia Reis, Pedro Amaral Aquino, Francisco Eliseu Thoen, Isaías Ullmann Bernardo, Ronaldo Torma Auger, Jeffrey Daniel 2021-09-21 application/pdf https://ojs.ufgd.edu.br/index.php/rbclima/article/view/15185 eng eng Universidade Federal da Grande Dourados https://ojs.ufgd.edu.br/index.php/rbclima/article/view/15185/8151 ABRAM, N. J.; MULVANEY, R.; VIMEUX, F.; PHIPPS, S. J.; TURNER, J.; ENGLAND, M. H. Evolution of the Southern Annular Mode during the past millennium. Nature Climate Change, vol. 4, no. 7, p. 564–569, 2014. https://doi.org/10.1038/nclimate2235. BERRISFORD, P.; DEE, D.; POLI, P.; BRUGGE, R.; FIELDING, K.; FUENTES, M.; KALLBERG, P.; KOBAYASHI, S.; UPPALA, S.; SIMMONS, A. ERA Interim Descripition. ERA report series, 2011. Available at: http://www.ecmwf.int/publications/. BROMWICH, D. H.; NICOLAS, J. P.; MONAGHAN, A. J.; LAZZARA, M. A.; KELLER, L. M.; WEIDNER, G. A.; WILSON, A. B. Central West Antarctica among the most rapidly warming regions on Earth. Nature Geoscience, vol. 6, no. 2, p. 139–145, 2013. DOI 10.1038/ngeo1671. BROOK, E. J.; BUIZERT, C. Antarctic and global climate history viewed from ice cores. Nature, vol. 558, no. 7709, p. 200–208, 2018. DOI 10.1038/s41586-018-0172-5. Available at: http://dx.doi.org/10.1038/s41586-018-0172-5. CHENG, L.; TRENBERTH, K. E.; FASULLO, J. T.; MAYER, M.; BALMASEDA, M.; ZHU, J. Evolution of ocean heat content related to ENSO. Journal of Climate, vol. 32, no. 12, p. 3529–3556, 2019. https://doi.org/10.1175/JCLI-D-18-0607.1. CLEM, K. R.; RENWICK, J. A.; MCGREGOR, J. Large-scale forcing of the Amundsen Sea low and its influence on sea ice and west antarctic temperature. Journal of Climate, vol. 30, no. 20, p. 8405–8424, 2017. https://doi.org/10.1175/JCLI-D-16-0891.1. DANSGAARD, W. Stable isotopes in precipitation. Tellus, vol. 16, no. 4, p. 436–468, 1964. https://doi.org/10.3402/tellusa.v16i4.8993. DING, Q.; STEIG, E. J.; BATTISTI, D. S.; KÜTTEL, M. Winter warming in West Antarctica caused by central tropical Pacific warming. Nature Geoscience, vol. 4, no. 6, p. 398–403, 2011. DOI 10.1038/ngeo1129. HOLLAND, D. M.; NICHOLLS, K. W.; BASINSKI, A. The Southern Ocean and its interaction with the Antarctic Ice Sheet. Science, vol. 367, no. 6484, p. 1326–1330, 2020. https://doi.org/10.1126/science.aaz5491. HOSKING, J. S.; ORR, A.; MARSHALL, G. J.; TURNER, J.; PHILLIPS, T. The influence of the amundsen-bellingshausen seas low on the climate of West Antarctica and its representation in coupled climate model simulations. Journal of Climate, vol. 26, no. 17, p. 6633–6648, 2013. https://doi.org/10.1175/JCLI-D-12-00813.1. HU, Y.; HUANG, H.; ZHOU, C. 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Chemical signals of past climate and environment from polar ice cores and firn air. Chemical Society Reviews, vol. 41, no. 19, p. 6247–6258, 2012. https://doi.org/10.1039/c2cs35227c. WOLFF, E. W.; RANKIN, A. M.; RÖTHLISBERGER, R. An ice core indicator of Antarctic sea ice production? Geophysical Research Letters, vol. 30, no. 22, p. 2–5, 2003. https://doi.org/10.1029/2003GL018454. YUAN, X.; KAPLAN, M. R.; CANE, M. A. The interconnected global climate system-a review of tropical-polar teleconnections. Journal of Climate, vol. 31, no. 15, p. 5765–5792, 2018. https://doi.org/10.1175/JCLI-D-16-0637.1. https://ojs.ufgd.edu.br/index.php/rbclima/article/view/15185 Direitos autorais 2021 José Mauro Dalla Rosa, Jefferson Cardia Simões, Pedro Amaral Reis, Francisco Eliseu Aquino, Isaías Ullmann Thoen, Ronaldo Torma Bernardo, Jeffrey Daniel Auger Revista Brasileira de Climatologia; v. 29 (2021); 273-298 2237-8642 Pacific Ocean. West Antarctica. Climatology info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artigo Avaliado pelos Pares 2021 ftunifgdourados https://doi.org/10.1038/nclimate2235 https://doi.org/10.1038/s41586-018-0172-5. https://doi.org/10.1175/JCLI-D-18-0607.1 https://doi.org/10.1175/JCLI-D-16-0891.1 https://doi.org/10.3402/tellusa.v16i4.8993 https://doi.org/10.1126/science.aaz5491 2021-11-14T00:32:23Z In this work, we present the climatic evolution of the South Pacific Ocean from 1900 to 2010 and its environmental influence over West Antarctica. We analyzed the sea surface temperature, mean sea level pressure, and meridional wind (850 hPa) of the South Pacific Ocean using ERA-20C reanalysis (European Center for Medium-Range Weather Forecasts), and compared these parameters with the regional temperature obtained indirectly (by proxy) from two ice cores from the West Antarctic ice sheet (Mount Johns and Ferrigno). The sea surface temperature increased in almost the entire South Pacific Ocean from 1900 to 2010; in the equatorial Pacific, it increased by 2.1 °C from 1916 to 1997, while in the middle latitudes of the South Pacific, it increased by 1.1 °C from 1923 to 2001. This increase occurred concurrently with a positive trend in the Southern Annular Mode and a change the mean sea level pressure anomaly from 1960 onwards. This atmospheric pressure increased at middle latitudes and decreased around Antarctica in the circumpolar low-pressure zone, strengthening the Amundsen Sea Low and changing the pattern of the meridional wind anomaly (850 hPa) between medium and high latitudes in the South Pacific. Furthermore, since 1960, a greater flow from north to south (onshore) has predominated from the southeast South Pacific to the north of West Antarctica. Such changes caused a reduction in the sea ice extent in the Amundsen and Bellingshausen Seas and an increase in average atmospheric temperature primarily in the coastal region of West Antarctica, as demonstrated by the Ferrigno ice core record. Conversely, the Mount Johns region did not show the same trend in atmospheric temperature, as it was influenced mainly by cold air masses from the Antarctic ice sheet. Article in Journal/Newspaper Amundsen Sea Antarc* Antarctic Antarctica ice core Ice Sheet Sea ice West Antarctica Portal de Periódicos UFGD Amundsen Sea Antarctic Mount Johns ENVELOPE(161.017,161.017,-77.326,-77.326) Pacific The Antarctic West Antarctic Ice Sheet West Antarctica Journal of Geophysical Research: Atmospheres 124 16 9262 9276

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