Frost flower chemical composition during growth and its implications for aerosol production and bromine activation
International audience Frost flowers have been proposed to be the major source of sea-salt aerosol to the atmosphere during polar winter and a source of reactive bromine during polar springtime. However little is known about their bulk chemical composition or microstructure, two important factors th...
Published in: | Journal of Geophysical Research |
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Main Authors: | , , , , , |
Other Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2008
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Online Access: | https://hal-insu.archives-ouvertes.fr/insu-00377930 https://hal-insu.archives-ouvertes.fr/insu-00377930/document https://hal-insu.archives-ouvertes.fr/insu-00377930/file/2008JD010277.pdf https://doi.org/10.1029/2008JD010277 |
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ftunivnantes:oai:HAL:insu-00377930v1 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
Frost flowers aerosol Arctic chemistry [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
spellingShingle |
Frost flowers aerosol Arctic chemistry [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology Alvarez-Aviles, Laura Simpson, William R. Douglas, Thomas A. Sturm, Matthew Perovich, Donald Domine, Florent Frost flower chemical composition during growth and its implications for aerosol production and bromine activation |
topic_facet |
Frost flowers aerosol Arctic chemistry [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
description |
International audience Frost flowers have been proposed to be the major source of sea-salt aerosol to the atmosphere during polar winter and a source of reactive bromine during polar springtime. However little is known about their bulk chemical composition or microstructure, two important factors that may affect their ability to produce aerosols and provide chemically reactive surfaces for exchange with the atmosphere. Therefore, we chemically analyzed 28 samples of frost flowers and parts of frost flowers collected from sea ice off of northern Alaska. Our results support the proposed mechanism for frost flower growth that suggests water vapor deposition forms an ice skeleton that wicks brine present on newly grown sea ice. We measured a high variability in sulfate enrichment factors (with respect to chloride) in frost flowers and seawater from the vicinity of freezing sea ice. The variability in sulfate indicates that mirabilite precipitation (Na2SO4 · 10 H2O) occurs during frost flower growth. Brine wicked up by frost flowers is typically sulfate depleted, in agreement with the theory that frost flowers are related to sulfate-depleted aerosol observed in Antarctica. The bromide enrichment factors we measured in frost flowers are within error of seawater composition, constraining the direct reactive losses of bromide from frost flowers. We combined the chemical composition measurements with temperature observations to create a conceptual model of possible scenarios for frost flower microstructure development. |
author2 |
Geophysical Institute Fairbanks University of Alaska Fairbanks (UAF) Department of Chemistry and Biochemistry Fairbanks ERDC Cold Regions Research and Engineering Laboratory (CRREL) USACE Engineer Research and Development Center (ERDC) 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) |
format |
Article in Journal/Newspaper |
author |
Alvarez-Aviles, Laura Simpson, William R. Douglas, Thomas A. Sturm, Matthew Perovich, Donald Domine, Florent |
author_facet |
Alvarez-Aviles, Laura Simpson, William R. Douglas, Thomas A. Sturm, Matthew Perovich, Donald Domine, Florent |
author_sort |
Alvarez-Aviles, Laura |
title |
Frost flower chemical composition during growth and its implications for aerosol production and bromine activation |
title_short |
Frost flower chemical composition during growth and its implications for aerosol production and bromine activation |
title_full |
Frost flower chemical composition during growth and its implications for aerosol production and bromine activation |
title_fullStr |
Frost flower chemical composition during growth and its implications for aerosol production and bromine activation |
title_full_unstemmed |
Frost flower chemical composition during growth and its implications for aerosol production and bromine activation |
title_sort |
frost flower chemical composition during growth and its implications for aerosol production and bromine activation |
publisher |
HAL CCSD |
publishDate |
2008 |
url |
https://hal-insu.archives-ouvertes.fr/insu-00377930 https://hal-insu.archives-ouvertes.fr/insu-00377930/document https://hal-insu.archives-ouvertes.fr/insu-00377930/file/2008JD010277.pdf https://doi.org/10.1029/2008JD010277 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Antarc* Antarctica Arctic Sea ice Alaska |
genre_facet |
Antarc* Antarctica Arctic Sea ice Alaska |
op_source |
ISSN: 2169-897X EISSN: 2169-8996 Journal of Geophysical Research: Atmospheres https://hal-insu.archives-ouvertes.fr/insu-00377930 Journal of Geophysical Research: Atmospheres, 2008, 113 (D21304), 1 à 10 p. ⟨10.1029/2008JD010277⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2008JD010277 insu-00377930 https://hal-insu.archives-ouvertes.fr/insu-00377930 https://hal-insu.archives-ouvertes.fr/insu-00377930/document https://hal-insu.archives-ouvertes.fr/insu-00377930/file/2008JD010277.pdf doi:10.1029/2008JD010277 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2008JD010277 |
container_title |
Journal of Geophysical Research |
container_volume |
113 |
container_issue |
D21 |
_version_ |
1766068526060142592 |
spelling |
ftunivnantes:oai:HAL:insu-00377930v1 2023-05-15T13:35:39+02:00 Frost flower chemical composition during growth and its implications for aerosol production and bromine activation Alvarez-Aviles, Laura Simpson, William R. Douglas, Thomas A. Sturm, Matthew Perovich, Donald Domine, Florent Geophysical Institute Fairbanks University of Alaska Fairbanks (UAF) Department of Chemistry and Biochemistry Fairbanks ERDC Cold Regions Research and Engineering Laboratory (CRREL) USACE Engineer Research and Development Center (ERDC) 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) 2008 https://hal-insu.archives-ouvertes.fr/insu-00377930 https://hal-insu.archives-ouvertes.fr/insu-00377930/document https://hal-insu.archives-ouvertes.fr/insu-00377930/file/2008JD010277.pdf https://doi.org/10.1029/2008JD010277 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2008JD010277 insu-00377930 https://hal-insu.archives-ouvertes.fr/insu-00377930 https://hal-insu.archives-ouvertes.fr/insu-00377930/document https://hal-insu.archives-ouvertes.fr/insu-00377930/file/2008JD010277.pdf doi:10.1029/2008JD010277 info:eu-repo/semantics/OpenAccess ISSN: 2169-897X EISSN: 2169-8996 Journal of Geophysical Research: Atmospheres https://hal-insu.archives-ouvertes.fr/insu-00377930 Journal of Geophysical Research: Atmospheres, 2008, 113 (D21304), 1 à 10 p. ⟨10.1029/2008JD010277⟩ Frost flowers aerosol Arctic chemistry [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology info:eu-repo/semantics/article Journal articles 2008 ftunivnantes https://doi.org/10.1029/2008JD010277 2023-03-01T02:37:46Z International audience Frost flowers have been proposed to be the major source of sea-salt aerosol to the atmosphere during polar winter and a source of reactive bromine during polar springtime. However little is known about their bulk chemical composition or microstructure, two important factors that may affect their ability to produce aerosols and provide chemically reactive surfaces for exchange with the atmosphere. Therefore, we chemically analyzed 28 samples of frost flowers and parts of frost flowers collected from sea ice off of northern Alaska. Our results support the proposed mechanism for frost flower growth that suggests water vapor deposition forms an ice skeleton that wicks brine present on newly grown sea ice. We measured a high variability in sulfate enrichment factors (with respect to chloride) in frost flowers and seawater from the vicinity of freezing sea ice. The variability in sulfate indicates that mirabilite precipitation (Na2SO4 · 10 H2O) occurs during frost flower growth. Brine wicked up by frost flowers is typically sulfate depleted, in agreement with the theory that frost flowers are related to sulfate-depleted aerosol observed in Antarctica. The bromide enrichment factors we measured in frost flowers are within error of seawater composition, constraining the direct reactive losses of bromide from frost flowers. We combined the chemical composition measurements with temperature observations to create a conceptual model of possible scenarios for frost flower microstructure development. Article in Journal/Newspaper Antarc* Antarctica Arctic Sea ice Alaska Université de Nantes: HAL-UNIV-NANTES Arctic Journal of Geophysical Research 113 D21 |