Isotopic constraints on non-photochemical sulfate production in the Arctic winter
International audience The oxygen isotopic composition (Δ17O) of non-seasalt sulfate (NSS) aerosol was measured in samples from Alert, Canada over one year (July 1999–June 2000) and used to quantify the S(IV) oxidants. Measurements of Δ17O in NSS are used to evaluate the relative contributions of O3...
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Online Access: | https://insu.hal.science/insu-00375726 https://insu.hal.science/insu-00375726/document https://insu.hal.science/insu-00375726/file/2005GL025164.pdf https://doi.org/10.1029/2005GL025164 |
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ftunivsavoie:oai:HAL:insu-00375726v1 2024-04-28T08:07:26+00:00 Isotopic constraints on non-photochemical sulfate production in the Arctic winter Mccabe, Justin R. Savarino, Joel Alexander, Becky Gong, Sunling H. Thiemens, Mark Department of Chemistry and Biochemistry University of California Los Angeles (UCLA) University of California (UC)-University of California (UC) Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-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 Joseph Fourier - Grenoble 1 (UJF)-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)-Centre National de la Recherche Scientifique (CNRS) Department of Atmospheric Sciences Seattle University of Washington Seattle Air Quality Research Branch, Meteorological Service of Canada Environment and Climate Change Canada (ECCC) 2006 https://insu.hal.science/insu-00375726 https://insu.hal.science/insu-00375726/document https://insu.hal.science/insu-00375726/file/2005GL025164.pdf https://doi.org/10.1029/2005GL025164 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2005GL025164 insu-00375726 https://insu.hal.science/insu-00375726 https://insu.hal.science/insu-00375726/document https://insu.hal.science/insu-00375726/file/2005GL025164.pdf doi:10.1029/2005GL025164 info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://insu.hal.science/insu-00375726 Geophysical Research Letters, 2006, 33 (L05810), 1 à 4 p. ⟨10.1029/2005GL025164⟩ Aerosols Particles Stable isotope geochemistry Biogeochemical cycles processes and modeling [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology info:eu-repo/semantics/article Journal articles 2006 ftunivsavoie https://doi.org/10.1029/2005GL025164 2024-04-11T00:42:33Z International audience The oxygen isotopic composition (Δ17O) of non-seasalt sulfate (NSS) aerosol was measured in samples from Alert, Canada over one year (July 1999–June 2000) and used to quantify the S(IV) oxidants. Measurements of Δ17O in NSS are used to evaluate the relative contributions of O3, H2O2, and OH oxidation leading to the formation of SO4 2− compared to a model of Feichter et al. (1996). The isotopic values suggest that there is a twofold overestimate of ozone oxidation in the model during winter. The isotopic composition is consistent with 10 to 18% contribution from a non-photochemical oxidation pathway, likely Fe3+/Mn2+-catalyzed O2 oxidation, during the dark Arctic winter. Isotopic evidence also invokes a 3 to 10% contribution of a mass dependent oxidant during springtime Arctic ozone depletion events. Article in Journal/Newspaper Arctic Université Savoie Mont Blanc: HAL Geophysical Research Letters 33 5 |
institution |
Open Polar |
collection |
Université Savoie Mont Blanc: HAL |
op_collection_id |
ftunivsavoie |
language |
English |
topic |
Aerosols Particles Stable isotope geochemistry Biogeochemical cycles processes and modeling [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
spellingShingle |
Aerosols Particles Stable isotope geochemistry Biogeochemical cycles processes and modeling [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology Mccabe, Justin R. Savarino, Joel Alexander, Becky Gong, Sunling H. Thiemens, Mark Isotopic constraints on non-photochemical sulfate production in the Arctic winter |
topic_facet |
Aerosols Particles Stable isotope geochemistry Biogeochemical cycles processes and modeling [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
description |
International audience The oxygen isotopic composition (Δ17O) of non-seasalt sulfate (NSS) aerosol was measured in samples from Alert, Canada over one year (July 1999–June 2000) and used to quantify the S(IV) oxidants. Measurements of Δ17O in NSS are used to evaluate the relative contributions of O3, H2O2, and OH oxidation leading to the formation of SO4 2− compared to a model of Feichter et al. (1996). The isotopic values suggest that there is a twofold overestimate of ozone oxidation in the model during winter. The isotopic composition is consistent with 10 to 18% contribution from a non-photochemical oxidation pathway, likely Fe3+/Mn2+-catalyzed O2 oxidation, during the dark Arctic winter. Isotopic evidence also invokes a 3 to 10% contribution of a mass dependent oxidant during springtime Arctic ozone depletion events. |
author2 |
Department of Chemistry and Biochemistry University of California Los Angeles (UCLA) University of California (UC)-University of California (UC) Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-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 Joseph Fourier - Grenoble 1 (UJF)-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)-Centre National de la Recherche Scientifique (CNRS) Department of Atmospheric Sciences Seattle University of Washington Seattle Air Quality Research Branch, Meteorological Service of Canada Environment and Climate Change Canada (ECCC) |
format |
Article in Journal/Newspaper |
author |
Mccabe, Justin R. Savarino, Joel Alexander, Becky Gong, Sunling H. Thiemens, Mark |
author_facet |
Mccabe, Justin R. Savarino, Joel Alexander, Becky Gong, Sunling H. Thiemens, Mark |
author_sort |
Mccabe, Justin R. |
title |
Isotopic constraints on non-photochemical sulfate production in the Arctic winter |
title_short |
Isotopic constraints on non-photochemical sulfate production in the Arctic winter |
title_full |
Isotopic constraints on non-photochemical sulfate production in the Arctic winter |
title_fullStr |
Isotopic constraints on non-photochemical sulfate production in the Arctic winter |
title_full_unstemmed |
Isotopic constraints on non-photochemical sulfate production in the Arctic winter |
title_sort |
isotopic constraints on non-photochemical sulfate production in the arctic winter |
publisher |
HAL CCSD |
publishDate |
2006 |
url |
https://insu.hal.science/insu-00375726 https://insu.hal.science/insu-00375726/document https://insu.hal.science/insu-00375726/file/2005GL025164.pdf https://doi.org/10.1029/2005GL025164 |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://insu.hal.science/insu-00375726 Geophysical Research Letters, 2006, 33 (L05810), 1 à 4 p. ⟨10.1029/2005GL025164⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2005GL025164 insu-00375726 https://insu.hal.science/insu-00375726 https://insu.hal.science/insu-00375726/document https://insu.hal.science/insu-00375726/file/2005GL025164.pdf doi:10.1029/2005GL025164 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2005GL025164 |
container_title |
Geophysical Research Letters |
container_volume |
33 |
container_issue |
5 |
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1797576559239888896 |