Influence of large-scale atmospheric circulation on marine air intrusion toward the East Antarctic coast
International audience Marine air intrusions into Antarctica play a key role in high-precipitation events. Here we use shipboard observations of water vapor isotopologues between Australia and Syowa on the East Antarctic coast to elucidate the mechanism by which large-scale circulation influences ma...
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Online Access: | https://hal.science/hal-03104070 https://hal.science/hal-03104070/document https://hal.science/hal-03104070/file/2016GL070246.pdf https://doi.org/10.1002/2016GL070246 |
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ftinsu:oai:HAL:hal-03104070v1 2024-04-28T07:58:29+00:00 Influence of large-scale atmospheric circulation on marine air intrusion toward the East Antarctic coast Kurita, Naoyuki Hirasawa, Naohiko Koga, Seizi Matsushita, Junji Steen-Larsen, Hans Christian Masson-Delmotte, Valérie Fujiyoshi, Yasushi Institute for Space-Earth Environmental Research Nagoya (ISEE) Nagoya University National Institute of Polar Research Tokyo (NiPR) National Institute of Advanced Industrial Science and Technology (AIST) Niels Bohr Institute Copenhagen (NBI) Faculty of Science Copenhagen University of Copenhagen = Københavns Universitet (UCPH)-University of Copenhagen = Københavns Universitet (UCPH) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Institute of Low Temperature Science Sapporo Hokkaido University Sapporo, Japan 2016-09-16 https://hal.science/hal-03104070 https://hal.science/hal-03104070/document https://hal.science/hal-03104070/file/2016GL070246.pdf https://doi.org/10.1002/2016GL070246 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1002/2016GL070246 hal-03104070 https://hal.science/hal-03104070 https://hal.science/hal-03104070/document https://hal.science/hal-03104070/file/2016GL070246.pdf doi:10.1002/2016GL070246 info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-03104070 Geophysical Research Letters, 2016, 43 (17), pp.9298-9305. ⟨10.1002/2016GL070246⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment info:eu-repo/semantics/article Journal articles 2016 ftinsu https://doi.org/10.1002/2016GL070246 2024-04-05T00:39:09Z International audience Marine air intrusions into Antarctica play a key role in high-precipitation events. Here we use shipboard observations of water vapor isotopologues between Australia and Syowa on the East Antarctic coast to elucidate the mechanism by which large-scale circulation influences marine air intrusions. The temporal isotopic variations at Syowa reflect the meridional movement of a marine air front. They are also associated with atmospheric circulation anomalies that enhance the southward movement of cyclones over the Southern Ocean. The relationship between large-scale circulation and the movement of the front is explained by northerly winds which, in association with cyclones, move toward the Antarctic coast and push marine air with isotopically enriched moisture into the inland covered by glacial air with depleted isotopic values. Future changes in large-scale circulation may have a significant impact on the frequency and intensity of marine air intrusion into Antarctica. Article in Journal/Newspaper Antarc* Antarctic Antarctica Southern Ocean Institut national des sciences de l'Univers: HAL-INSU Geophysical Research Letters 43 17 9298 9305 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment Kurita, Naoyuki Hirasawa, Naohiko Koga, Seizi Matsushita, Junji Steen-Larsen, Hans Christian Masson-Delmotte, Valérie Fujiyoshi, Yasushi Influence of large-scale atmospheric circulation on marine air intrusion toward the East Antarctic coast |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience Marine air intrusions into Antarctica play a key role in high-precipitation events. Here we use shipboard observations of water vapor isotopologues between Australia and Syowa on the East Antarctic coast to elucidate the mechanism by which large-scale circulation influences marine air intrusions. The temporal isotopic variations at Syowa reflect the meridional movement of a marine air front. They are also associated with atmospheric circulation anomalies that enhance the southward movement of cyclones over the Southern Ocean. The relationship between large-scale circulation and the movement of the front is explained by northerly winds which, in association with cyclones, move toward the Antarctic coast and push marine air with isotopically enriched moisture into the inland covered by glacial air with depleted isotopic values. Future changes in large-scale circulation may have a significant impact on the frequency and intensity of marine air intrusion into Antarctica. |
author2 |
Institute for Space-Earth Environmental Research Nagoya (ISEE) Nagoya University National Institute of Polar Research Tokyo (NiPR) National Institute of Advanced Industrial Science and Technology (AIST) Niels Bohr Institute Copenhagen (NBI) Faculty of Science Copenhagen University of Copenhagen = Københavns Universitet (UCPH)-University of Copenhagen = Københavns Universitet (UCPH) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Institute of Low Temperature Science Sapporo Hokkaido University Sapporo, Japan |
format |
Article in Journal/Newspaper |
author |
Kurita, Naoyuki Hirasawa, Naohiko Koga, Seizi Matsushita, Junji Steen-Larsen, Hans Christian Masson-Delmotte, Valérie Fujiyoshi, Yasushi |
author_facet |
Kurita, Naoyuki Hirasawa, Naohiko Koga, Seizi Matsushita, Junji Steen-Larsen, Hans Christian Masson-Delmotte, Valérie Fujiyoshi, Yasushi |
author_sort |
Kurita, Naoyuki |
title |
Influence of large-scale atmospheric circulation on marine air intrusion toward the East Antarctic coast |
title_short |
Influence of large-scale atmospheric circulation on marine air intrusion toward the East Antarctic coast |
title_full |
Influence of large-scale atmospheric circulation on marine air intrusion toward the East Antarctic coast |
title_fullStr |
Influence of large-scale atmospheric circulation on marine air intrusion toward the East Antarctic coast |
title_full_unstemmed |
Influence of large-scale atmospheric circulation on marine air intrusion toward the East Antarctic coast |
title_sort |
influence of large-scale atmospheric circulation on marine air intrusion toward the east antarctic coast |
publisher |
HAL CCSD |
publishDate |
2016 |
url |
https://hal.science/hal-03104070 https://hal.science/hal-03104070/document https://hal.science/hal-03104070/file/2016GL070246.pdf https://doi.org/10.1002/2016GL070246 |
genre |
Antarc* Antarctic Antarctica Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Southern Ocean |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-03104070 Geophysical Research Letters, 2016, 43 (17), pp.9298-9305. ⟨10.1002/2016GL070246⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1002/2016GL070246 hal-03104070 https://hal.science/hal-03104070 https://hal.science/hal-03104070/document https://hal.science/hal-03104070/file/2016GL070246.pdf doi:10.1002/2016GL070246 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1002/2016GL070246 |
container_title |
Geophysical Research Letters |
container_volume |
43 |
container_issue |
17 |
container_start_page |
9298 |
op_container_end_page |
9305 |
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1797569833708027904 |