Dicarboxylic and oxocarboxylic acids in the Arctic coastal Ocean (Beaufort Sea-Mackenzie Margin).
International audience The distribution of bifunctional carboxylic acids (BCAs) is largely reported as primary or secondary organic aerosols. However, sparse studies describe the distribution of these organic compounds in fluvial and marine environments. In the context of a global warming, we presen...
Published in: | Global Biogeochemical Cycles |
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Format: | Article in Journal/Newspaper |
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Online Access: | https://hal-amu.archives-ouvertes.fr/hal-02173822 https://hal-amu.archives-ouvertes.fr/hal-02173822/document https://hal-amu.archives-ouvertes.fr/hal-02173822/file/Sempere-et-al-HAL-Malina-2019.pdf https://doi.org/10.1002/(ISSN)1944-9224 |
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ftccsdartic:oai:HAL:hal-02173822v1 2023-05-15T14:48:14+02:00 Dicarboxylic and oxocarboxylic acids in the Arctic coastal Ocean (Beaufort Sea-Mackenzie Margin). SEMPERE, Richard VAITILINGOM, Mickael Charrìère, Bruno Kawamura, Kimitaka PANAGIOTOPOULOS, Christos Institut méditerranéen d'océanologie (MIO) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS) Université des Antilles (Pôle Guadeloupe) Université des Antilles (UA) Centre de Formation et de Recherche sur les Environnements Méditérranéens (CEFREM) Université de Perpignan Via Domitia (UPVD)-Centre National de la Recherche Scientifique (CNRS) Hokkaido University Sapporo, Japan ANR-11-BS56-0022,SAM,Source d'aérosols marins dans l'atmosphère méditerranéenne(2011) European Project: 1674,ESA 2019 https://hal-amu.archives-ouvertes.fr/hal-02173822 https://hal-amu.archives-ouvertes.fr/hal-02173822/document https://hal-amu.archives-ouvertes.fr/hal-02173822/file/Sempere-et-al-HAL-Malina-2019.pdf https://doi.org/10.1002/(ISSN)1944-9224 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1002/(ISSN)1944-9224 info:eu-repo/grantAgreement//1674/EU/European Space Agency/ESA hal-02173822 https://hal-amu.archives-ouvertes.fr/hal-02173822 https://hal-amu.archives-ouvertes.fr/hal-02173822/document https://hal-amu.archives-ouvertes.fr/hal-02173822/file/Sempere-et-al-HAL-Malina-2019.pdf doi:10.1002/(ISSN)1944-9224 http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess ISSN: 0886-6236 EISSN: 1944-8224 Global Biogeochemical Cycles https://hal-amu.archives-ouvertes.fr/hal-02173822 Global Biogeochemical Cycles, American Geophysical Union, In press, ⟨10.1002/(ISSN)1944-9224⟩ Biogeochemistry --- chimie foliaire [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2019 ftccsdartic https://doi.org/10.1002/(ISSN)1944-9224 2021-11-07T01:42:48Z International audience The distribution of bifunctional carboxylic acids (BCAs) is largely reported as primary or secondary organic aerosols. However, sparse studies describe the distribution of these organic compounds in fluvial and marine environments. In the context of a global warming, we present the first results of a study of the distribution of BCAs in a surface Arctic coastal area near the mouth of the Mackenzie River. These results showed that the Beaufort Sea is an area with elevated BCA content among which glyoxylic acid is predominant, in contrast to low concentrations and predominance of oxalic acid in aerosols reported elsewhere. The carbon fraction of BCAs represents 1.8% to 4.5% of dissolved organic carbon pool in Arctic Ocean. This study reinforces the hypothesis that aquatic biological processes govern the molecular distribution of BCA in marine/river waters, whereas photochemical oxidation reactions regulate their molecular distribution in rain and aerosols. Our results indicate that the Mackenzie River is an important source of BCAs in the Arctic Ocean during July-October period, with a first estimate of 35 × 10 3 tons of BCAs including 12 × 10 3 tons of diacids and 23 × 10 3 tons of oxoacids. Article in Journal/Newspaper Arctic Arctic Ocean Beaufort Sea Global warming Mackenzie river Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Arctic Arctic Ocean Mackenzie River Global Biogeochemical Cycles |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
Biogeochemistry --- chimie foliaire [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
Biogeochemistry --- chimie foliaire [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere SEMPERE, Richard VAITILINGOM, Mickael Charrìère, Bruno Kawamura, Kimitaka PANAGIOTOPOULOS, Christos Dicarboxylic and oxocarboxylic acids in the Arctic coastal Ocean (Beaufort Sea-Mackenzie Margin). |
topic_facet |
Biogeochemistry --- chimie foliaire [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience The distribution of bifunctional carboxylic acids (BCAs) is largely reported as primary or secondary organic aerosols. However, sparse studies describe the distribution of these organic compounds in fluvial and marine environments. In the context of a global warming, we present the first results of a study of the distribution of BCAs in a surface Arctic coastal area near the mouth of the Mackenzie River. These results showed that the Beaufort Sea is an area with elevated BCA content among which glyoxylic acid is predominant, in contrast to low concentrations and predominance of oxalic acid in aerosols reported elsewhere. The carbon fraction of BCAs represents 1.8% to 4.5% of dissolved organic carbon pool in Arctic Ocean. This study reinforces the hypothesis that aquatic biological processes govern the molecular distribution of BCA in marine/river waters, whereas photochemical oxidation reactions regulate their molecular distribution in rain and aerosols. Our results indicate that the Mackenzie River is an important source of BCAs in the Arctic Ocean during July-October period, with a first estimate of 35 × 10 3 tons of BCAs including 12 × 10 3 tons of diacids and 23 × 10 3 tons of oxoacids. |
author2 |
Institut méditerranéen d'océanologie (MIO) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS) Université des Antilles (Pôle Guadeloupe) Université des Antilles (UA) Centre de Formation et de Recherche sur les Environnements Méditérranéens (CEFREM) Université de Perpignan Via Domitia (UPVD)-Centre National de la Recherche Scientifique (CNRS) Hokkaido University Sapporo, Japan ANR-11-BS56-0022,SAM,Source d'aérosols marins dans l'atmosphère méditerranéenne(2011) European Project: 1674,ESA |
format |
Article in Journal/Newspaper |
author |
SEMPERE, Richard VAITILINGOM, Mickael Charrìère, Bruno Kawamura, Kimitaka PANAGIOTOPOULOS, Christos |
author_facet |
SEMPERE, Richard VAITILINGOM, Mickael Charrìère, Bruno Kawamura, Kimitaka PANAGIOTOPOULOS, Christos |
author_sort |
SEMPERE, Richard |
title |
Dicarboxylic and oxocarboxylic acids in the Arctic coastal Ocean (Beaufort Sea-Mackenzie Margin). |
title_short |
Dicarboxylic and oxocarboxylic acids in the Arctic coastal Ocean (Beaufort Sea-Mackenzie Margin). |
title_full |
Dicarboxylic and oxocarboxylic acids in the Arctic coastal Ocean (Beaufort Sea-Mackenzie Margin). |
title_fullStr |
Dicarboxylic and oxocarboxylic acids in the Arctic coastal Ocean (Beaufort Sea-Mackenzie Margin). |
title_full_unstemmed |
Dicarboxylic and oxocarboxylic acids in the Arctic coastal Ocean (Beaufort Sea-Mackenzie Margin). |
title_sort |
dicarboxylic and oxocarboxylic acids in the arctic coastal ocean (beaufort sea-mackenzie margin). |
publisher |
HAL CCSD |
publishDate |
2019 |
url |
https://hal-amu.archives-ouvertes.fr/hal-02173822 https://hal-amu.archives-ouvertes.fr/hal-02173822/document https://hal-amu.archives-ouvertes.fr/hal-02173822/file/Sempere-et-al-HAL-Malina-2019.pdf https://doi.org/10.1002/(ISSN)1944-9224 |
geographic |
Arctic Arctic Ocean Mackenzie River |
geographic_facet |
Arctic Arctic Ocean Mackenzie River |
genre |
Arctic Arctic Ocean Beaufort Sea Global warming Mackenzie river |
genre_facet |
Arctic Arctic Ocean Beaufort Sea Global warming Mackenzie river |
op_source |
ISSN: 0886-6236 EISSN: 1944-8224 Global Biogeochemical Cycles https://hal-amu.archives-ouvertes.fr/hal-02173822 Global Biogeochemical Cycles, American Geophysical Union, In press, ⟨10.1002/(ISSN)1944-9224⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1002/(ISSN)1944-9224 info:eu-repo/grantAgreement//1674/EU/European Space Agency/ESA hal-02173822 https://hal-amu.archives-ouvertes.fr/hal-02173822 https://hal-amu.archives-ouvertes.fr/hal-02173822/document https://hal-amu.archives-ouvertes.fr/hal-02173822/file/Sempere-et-al-HAL-Malina-2019.pdf doi:10.1002/(ISSN)1944-9224 |
op_rights |
http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1002/(ISSN)1944-9224 |
container_title |
Global Biogeochemical Cycles |
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1766319322599260160 |