First-year sea-ice contact predicts bromine monoxide (BrO) levels better than potential frost flower contact
International audience Reactive halogens are responsible for boundary-layer ozone depletion and mercury deposition in Polar Regions during springtime. To investigate the source of reactive halogens in the air arriving at Barrow, Alaska, we measured BrO, a marker of reactive halogen chemistry, and co...
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ftinsu:oai:HAL:hal-00302253v1 2023-11-12T04:12:04+01:00 First-year sea-ice contact predicts bromine monoxide (BrO) levels better than potential frost flower contact Simpson, W. R. Carlson, D. Hoenninger, G. Douglas, T. A. Sturm, M. Perovich, D. Platt, U. Geophysical Institute and Department of Chemistry University of Alaska Fairbanks (UAF) Institute of Environmental Physics Heidelberg (IUP) Universität Heidelberg Heidelberg = Heidelberg University ERDC Cold Regions Research and Engineering Laboratory (CRREL) USACE Engineer Research and Development Center (ERDC) 2006-11-07 https://hal.science/hal-00302253 https://hal.science/hal-00302253/document https://hal.science/hal-00302253/file/acpd-6-11051-2006.pdf en eng HAL CCSD European Geosciences Union hal-00302253 https://hal.science/hal-00302253 https://hal.science/hal-00302253/document https://hal.science/hal-00302253/file/acpd-6-11051-2006.pdf info:eu-repo/semantics/OpenAccess ISSN: 1680-7367 EISSN: 1680-7375 Atmospheric Chemistry and Physics Discussions https://hal.science/hal-00302253 Atmospheric Chemistry and Physics Discussions, 2006, 6 (6), pp.11051-11066 [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2006 ftinsu 2023-10-25T16:26:39Z International audience Reactive halogens are responsible for boundary-layer ozone depletion and mercury deposition in Polar Regions during springtime. To investigate the source of reactive halogens in the air arriving at Barrow, Alaska, we measured BrO, a marker of reactive halogen chemistry, and correlated its abundance with airmass histories derived from meteorological back trajectories and remotely sensed sea ice properties. The BrO is found to be positively correlated to first-year sea-ice contact ( R 2 =0.55), and weakly negatively correlated to potential frost flower (PFF) contact ( R 2 =0.04). These data indicate that snow contaminated with sea salts on first-year sea ice is a more probable bromine source than are frost flowers. Recent climate-driven changes in Arctic sea ice are likely to alter frost flower and first year sea ice prevalence, suggesting a significant change in reactive halogen abundance, which will alter the chemistry of the overlying Arctic atmosphere. Article in Journal/Newspaper Arctic Barrow Sea ice Alaska Institut national des sciences de l'Univers: HAL-INSU Arctic |
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Open Polar |
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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 |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Simpson, W. R. Carlson, D. Hoenninger, G. Douglas, T. A. Sturm, M. Perovich, D. Platt, U. First-year sea-ice contact predicts bromine monoxide (BrO) levels better than potential frost flower contact |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience Reactive halogens are responsible for boundary-layer ozone depletion and mercury deposition in Polar Regions during springtime. To investigate the source of reactive halogens in the air arriving at Barrow, Alaska, we measured BrO, a marker of reactive halogen chemistry, and correlated its abundance with airmass histories derived from meteorological back trajectories and remotely sensed sea ice properties. The BrO is found to be positively correlated to first-year sea-ice contact ( R 2 =0.55), and weakly negatively correlated to potential frost flower (PFF) contact ( R 2 =0.04). These data indicate that snow contaminated with sea salts on first-year sea ice is a more probable bromine source than are frost flowers. Recent climate-driven changes in Arctic sea ice are likely to alter frost flower and first year sea ice prevalence, suggesting a significant change in reactive halogen abundance, which will alter the chemistry of the overlying Arctic atmosphere. |
author2 |
Geophysical Institute and Department of Chemistry University of Alaska Fairbanks (UAF) Institute of Environmental Physics Heidelberg (IUP) Universität Heidelberg Heidelberg = Heidelberg University ERDC Cold Regions Research and Engineering Laboratory (CRREL) USACE Engineer Research and Development Center (ERDC) |
format |
Article in Journal/Newspaper |
author |
Simpson, W. R. Carlson, D. Hoenninger, G. Douglas, T. A. Sturm, M. Perovich, D. Platt, U. |
author_facet |
Simpson, W. R. Carlson, D. Hoenninger, G. Douglas, T. A. Sturm, M. Perovich, D. Platt, U. |
author_sort |
Simpson, W. R. |
title |
First-year sea-ice contact predicts bromine monoxide (BrO) levels better than potential frost flower contact |
title_short |
First-year sea-ice contact predicts bromine monoxide (BrO) levels better than potential frost flower contact |
title_full |
First-year sea-ice contact predicts bromine monoxide (BrO) levels better than potential frost flower contact |
title_fullStr |
First-year sea-ice contact predicts bromine monoxide (BrO) levels better than potential frost flower contact |
title_full_unstemmed |
First-year sea-ice contact predicts bromine monoxide (BrO) levels better than potential frost flower contact |
title_sort |
first-year sea-ice contact predicts bromine monoxide (bro) levels better than potential frost flower contact |
publisher |
HAL CCSD |
publishDate |
2006 |
url |
https://hal.science/hal-00302253 https://hal.science/hal-00302253/document https://hal.science/hal-00302253/file/acpd-6-11051-2006.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Barrow Sea ice Alaska |
genre_facet |
Arctic Barrow Sea ice Alaska |
op_source |
ISSN: 1680-7367 EISSN: 1680-7375 Atmospheric Chemistry and Physics Discussions https://hal.science/hal-00302253 Atmospheric Chemistry and Physics Discussions, 2006, 6 (6), pp.11051-11066 |
op_relation |
hal-00302253 https://hal.science/hal-00302253 https://hal.science/hal-00302253/document https://hal.science/hal-00302253/file/acpd-6-11051-2006.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1782330825805660160 |