Multi-year record of atmospheric mercury at Dumont d'Urville, East Antarctic coast: continental outflow and oceanic influences
International audience Under the framework of the Global Mercury Observation System (GMOS) project, a 3.5-year record of atmospheric gaseous elemental mercury (Hg(0)) has been gathered at Dumont d'Urville (DDU, 66 • 40 S, 140 • 01 E, 43 m above sea level) on the East Antarctic coast. Additional...
Published in: | Atmospheric Chemistry and Physics |
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Main Authors: | , , , , , |
Other Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2016
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Online Access: | https://insu.hal.science/insu-01391278 https://insu.hal.science/insu-01391278/document https://insu.hal.science/insu-01391278/file/ATMOSPHERIC%20CHEMISTRY%20AND%20PHYSICS%20-%20Multi-year%20record%20of%20atmospheric%20mercury%20at%20Dumont%20d%27Urville,%20East%20Antarctic%20coast%20continental%20outflow%20and%20oceanic%20influences.pdf https://doi.org/10.5194/acp-16-8265-2016 |
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Institut national des sciences de l'Univers: HAL-INSU |
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[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
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[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] Angot, Hélène Dion, Iris Vogel, Nicolas Legrand, Michel Magand, Olivier Dommergue, Aurélien Multi-year record of atmospheric mercury at Dumont d'Urville, East Antarctic coast: continental outflow and oceanic influences |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
description |
International audience Under the framework of the Global Mercury Observation System (GMOS) project, a 3.5-year record of atmospheric gaseous elemental mercury (Hg(0)) has been gathered at Dumont d'Urville (DDU, 66 • 40 S, 140 • 01 E, 43 m above sea level) on the East Antarctic coast. Additionally, surface snow samples were collected in February 2009 during a traverse between Concordia Station located on the East Antarctic plateau and DDU. The record of atmospheric Hg(0) at DDU reveals particularities that are not seen at other coastal sites: a gradual decrease of concentrations over the course of winter, and a daily maximum concentration around midday in summer. Additionally, total mercury concentrations in surface snow samples were particularly elevated near DDU (up to 194.4 ng L −1) as compared to measurements at other coastal Antarctic sites. These differences can be explained by the more frequent arrival of inland air masses at DDU than at other coastal sites. This confirms the influence of processes observed on the Antarctic plateau on the cycle of atmospheric mercury at a continental scale, especially in areas subject to recurrent katabatic winds. DDU is also influenced by oceanic air masses and our data suggest that the ocean plays a dual role on Hg(0) concentrations. The open ocean may represent a source of atmospheric Hg(0) in summer whereas the sea-ice surface may provide reactive halo-gens in spring that can oxidize Hg(0). This paper also discusses implications for coastal Antarctic ecosystems and for the cycle of atmospheric mercury in high southern latitudes. |
author2 |
Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG ) Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 )-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 ) |
format |
Article in Journal/Newspaper |
author |
Angot, Hélène Dion, Iris Vogel, Nicolas Legrand, Michel Magand, Olivier Dommergue, Aurélien |
author_facet |
Angot, Hélène Dion, Iris Vogel, Nicolas Legrand, Michel Magand, Olivier Dommergue, Aurélien |
author_sort |
Angot, Hélène |
title |
Multi-year record of atmospheric mercury at Dumont d'Urville, East Antarctic coast: continental outflow and oceanic influences |
title_short |
Multi-year record of atmospheric mercury at Dumont d'Urville, East Antarctic coast: continental outflow and oceanic influences |
title_full |
Multi-year record of atmospheric mercury at Dumont d'Urville, East Antarctic coast: continental outflow and oceanic influences |
title_fullStr |
Multi-year record of atmospheric mercury at Dumont d'Urville, East Antarctic coast: continental outflow and oceanic influences |
title_full_unstemmed |
Multi-year record of atmospheric mercury at Dumont d'Urville, East Antarctic coast: continental outflow and oceanic influences |
title_sort |
multi-year record of atmospheric mercury at dumont d'urville, east antarctic coast: continental outflow and oceanic influences |
publisher |
HAL CCSD |
publishDate |
2016 |
url |
https://insu.hal.science/insu-01391278 https://insu.hal.science/insu-01391278/document https://insu.hal.science/insu-01391278/file/ATMOSPHERIC%20CHEMISTRY%20AND%20PHYSICS%20-%20Multi-year%20record%20of%20atmospheric%20mercury%20at%20Dumont%20d%27Urville,%20East%20Antarctic%20coast%20continental%20outflow%20and%20oceanic%20influences.pdf https://doi.org/10.5194/acp-16-8265-2016 |
genre |
Antarc* Antarctic Sea ice |
genre_facet |
Antarc* Antarctic Sea ice |
op_source |
ISSN: 1680-7316 EISSN: 1680-7324 Atmospheric Chemistry and Physics https://insu.hal.science/insu-01391278 Atmospheric Chemistry and Physics, 2016, 16 (13), pp.8265-8279. ⟨10.5194/acp-16-8265-2016⟩ |
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info:eu-repo/semantics/altIdentifier/doi/10.5194/acp-16-8265-2016 insu-01391278 https://insu.hal.science/insu-01391278 https://insu.hal.science/insu-01391278/document https://insu.hal.science/insu-01391278/file/ATMOSPHERIC%20CHEMISTRY%20AND%20PHYSICS%20-%20Multi-year%20record%20of%20atmospheric%20mercury%20at%20Dumont%20d%27Urville,%20East%20Antarctic%20coast%20continental%20outflow%20and%20oceanic%20influences.pdf doi:10.5194/acp-16-8265-2016 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/acp-16-8265-2016 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
16 |
container_issue |
13 |
container_start_page |
8265 |
op_container_end_page |
8279 |
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ftinsu:oai:HAL:insu-01391278v1 2024-04-28T08:01:45+00:00 Multi-year record of atmospheric mercury at Dumont d'Urville, East Antarctic coast: continental outflow and oceanic influences Angot, Hélène Dion, Iris Vogel, Nicolas Legrand, Michel Magand, Olivier Dommergue, Aurélien Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG ) Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 )-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 ) 2016 https://insu.hal.science/insu-01391278 https://insu.hal.science/insu-01391278/document https://insu.hal.science/insu-01391278/file/ATMOSPHERIC%20CHEMISTRY%20AND%20PHYSICS%20-%20Multi-year%20record%20of%20atmospheric%20mercury%20at%20Dumont%20d%27Urville,%20East%20Antarctic%20coast%20continental%20outflow%20and%20oceanic%20influences.pdf https://doi.org/10.5194/acp-16-8265-2016 en eng HAL CCSD European Geosciences Union info:eu-repo/semantics/altIdentifier/doi/10.5194/acp-16-8265-2016 insu-01391278 https://insu.hal.science/insu-01391278 https://insu.hal.science/insu-01391278/document https://insu.hal.science/insu-01391278/file/ATMOSPHERIC%20CHEMISTRY%20AND%20PHYSICS%20-%20Multi-year%20record%20of%20atmospheric%20mercury%20at%20Dumont%20d%27Urville,%20East%20Antarctic%20coast%20continental%20outflow%20and%20oceanic%20influences.pdf doi:10.5194/acp-16-8265-2016 info:eu-repo/semantics/OpenAccess ISSN: 1680-7316 EISSN: 1680-7324 Atmospheric Chemistry and Physics https://insu.hal.science/insu-01391278 Atmospheric Chemistry and Physics, 2016, 16 (13), pp.8265-8279. ⟨10.5194/acp-16-8265-2016⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] info:eu-repo/semantics/article Journal articles 2016 ftinsu https://doi.org/10.5194/acp-16-8265-2016 2024-04-05T00:48:45Z International audience Under the framework of the Global Mercury Observation System (GMOS) project, a 3.5-year record of atmospheric gaseous elemental mercury (Hg(0)) has been gathered at Dumont d'Urville (DDU, 66 • 40 S, 140 • 01 E, 43 m above sea level) on the East Antarctic coast. Additionally, surface snow samples were collected in February 2009 during a traverse between Concordia Station located on the East Antarctic plateau and DDU. The record of atmospheric Hg(0) at DDU reveals particularities that are not seen at other coastal sites: a gradual decrease of concentrations over the course of winter, and a daily maximum concentration around midday in summer. Additionally, total mercury concentrations in surface snow samples were particularly elevated near DDU (up to 194.4 ng L −1) as compared to measurements at other coastal Antarctic sites. These differences can be explained by the more frequent arrival of inland air masses at DDU than at other coastal sites. This confirms the influence of processes observed on the Antarctic plateau on the cycle of atmospheric mercury at a continental scale, especially in areas subject to recurrent katabatic winds. DDU is also influenced by oceanic air masses and our data suggest that the ocean plays a dual role on Hg(0) concentrations. The open ocean may represent a source of atmospheric Hg(0) in summer whereas the sea-ice surface may provide reactive halo-gens in spring that can oxidize Hg(0). This paper also discusses implications for coastal Antarctic ecosystems and for the cycle of atmospheric mercury in high southern latitudes. Article in Journal/Newspaper Antarc* Antarctic Sea ice Institut national des sciences de l'Univers: HAL-INSU Atmospheric Chemistry and Physics 16 13 8265 8279 |