Bromide in Snow in the Sea Ice Zone
Abstract: A range of chemical and microphysical pathways in polar latitudes, including spring time (tropospheric) ozone depletion, oxidative pathways for mercury, and cloud condensation nuclei (CCN) production leading to changes in the cloud cover and attendant surface energy budgets, have been invo...
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2016
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dataone:http://get.iedadata.org/metadata/iso/600158 2024-06-03T18:46:24+00:00 Bromide in Snow in the Sea Ice Zone Obbard, Rachel ENVELOPE(164.1005,166.7398,-77.1188,-77.8645) BEGINDATE: 2011-08-15T00:00:00Z ENDDATE: 2015-07-31T00:00:00Z 2016-01-01T00:00:00Z http://get.iedadata.org/metadata/iso/600158 unknown IEDA: US Antarctic Program Data Center Snow Antarctic Ocean and Atmospheric Sciences Crystals Chemistry:Ice Glaciology Photo/Video Sea Surface Critical Zone Sea Ice Southern Ocean Atmosphere Cryosphere Oceans Ross Sea US Antarctic Program Data Center (USAP-DC) Dataset 2016 dataone:urn:node:IEDA_USAP 2024-06-03T18:11:58Z Abstract: A range of chemical and microphysical pathways in polar latitudes, including spring time (tropospheric) ozone depletion, oxidative pathways for mercury, and cloud condensation nuclei (CCN) production leading to changes in the cloud cover and attendant surface energy budgets, have been invoked as being dependent upon the emission of halogen gases formed in sea-ice. The prospects for climate warming induced reductions in sea ice extent causing alteration of these incompletely known surface-atmospheric feedbacks and interactions requires confirmation of mechanistic details in both laboratory studies and field campaigns. One such mechanistic question is how bromine (BrO and Br) enriched snow migrates or is formed through processes in sea-ice, prior to its subsequent mobilization as an aerosol fraction into the atmosphere by strong winds. Once aloft, it may react with ozone and other atmospheric species. Dartmouth researchers will collect snow from the surface of sea ice, from freely blowing snow and in sea-ice cores from Cape Byrd, Ross Sea. A range of spectroscopic, microanalytic and and microstructural approaches will be subsequently used to determine the Br distribution gradients through sea-ice, in order to shed light on how sea-ice first forms and then releases bromine species into the polar atmospheric boundary layer. Dataset Antarc* Antarctic Antarctic Ocean Ross Sea Sea ice Southern Ocean IEDA: US Antarctic Program Data Center (via DataONE) Antarctic Southern Ocean Ross Sea Byrd Antarctic Ocean Cape Byrd ENVELOPE(-76.050,-76.050,-69.967,-69.967) ENVELOPE(164.1005,166.7398,-77.1188,-77.8645) |
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Open Polar |
collection |
IEDA: US Antarctic Program Data Center (via DataONE) |
op_collection_id |
dataone:urn:node:IEDA_USAP |
language |
unknown |
topic |
Snow Antarctic Ocean and Atmospheric Sciences Crystals Chemistry:Ice Glaciology Photo/Video Sea Surface Critical Zone Sea Ice Southern Ocean Atmosphere Cryosphere Oceans Ross Sea US Antarctic Program Data Center (USAP-DC) |
spellingShingle |
Snow Antarctic Ocean and Atmospheric Sciences Crystals Chemistry:Ice Glaciology Photo/Video Sea Surface Critical Zone Sea Ice Southern Ocean Atmosphere Cryosphere Oceans Ross Sea US Antarctic Program Data Center (USAP-DC) Obbard, Rachel Bromide in Snow in the Sea Ice Zone |
topic_facet |
Snow Antarctic Ocean and Atmospheric Sciences Crystals Chemistry:Ice Glaciology Photo/Video Sea Surface Critical Zone Sea Ice Southern Ocean Atmosphere Cryosphere Oceans Ross Sea US Antarctic Program Data Center (USAP-DC) |
description |
Abstract: A range of chemical and microphysical pathways in polar latitudes, including spring time (tropospheric) ozone depletion, oxidative pathways for mercury, and cloud condensation nuclei (CCN) production leading to changes in the cloud cover and attendant surface energy budgets, have been invoked as being dependent upon the emission of halogen gases formed in sea-ice. The prospects for climate warming induced reductions in sea ice extent causing alteration of these incompletely known surface-atmospheric feedbacks and interactions requires confirmation of mechanistic details in both laboratory studies and field campaigns. One such mechanistic question is how bromine (BrO and Br) enriched snow migrates or is formed through processes in sea-ice, prior to its subsequent mobilization as an aerosol fraction into the atmosphere by strong winds. Once aloft, it may react with ozone and other atmospheric species. Dartmouth researchers will collect snow from the surface of sea ice, from freely blowing snow and in sea-ice cores from Cape Byrd, Ross Sea. A range of spectroscopic, microanalytic and and microstructural approaches will be subsequently used to determine the Br distribution gradients through sea-ice, in order to shed light on how sea-ice first forms and then releases bromine species into the polar atmospheric boundary layer. |
format |
Dataset |
author |
Obbard, Rachel |
author_facet |
Obbard, Rachel |
author_sort |
Obbard, Rachel |
title |
Bromide in Snow in the Sea Ice Zone |
title_short |
Bromide in Snow in the Sea Ice Zone |
title_full |
Bromide in Snow in the Sea Ice Zone |
title_fullStr |
Bromide in Snow in the Sea Ice Zone |
title_full_unstemmed |
Bromide in Snow in the Sea Ice Zone |
title_sort |
bromide in snow in the sea ice zone |
publisher |
IEDA: US Antarctic Program Data Center |
publishDate |
2016 |
url |
http://get.iedadata.org/metadata/iso/600158 |
op_coverage |
ENVELOPE(164.1005,166.7398,-77.1188,-77.8645) BEGINDATE: 2011-08-15T00:00:00Z ENDDATE: 2015-07-31T00:00:00Z |
long_lat |
ENVELOPE(-76.050,-76.050,-69.967,-69.967) ENVELOPE(164.1005,166.7398,-77.1188,-77.8645) |
geographic |
Antarctic Southern Ocean Ross Sea Byrd Antarctic Ocean Cape Byrd |
geographic_facet |
Antarctic Southern Ocean Ross Sea Byrd Antarctic Ocean Cape Byrd |
genre |
Antarc* Antarctic Antarctic Ocean Ross Sea Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Ocean Ross Sea Sea ice Southern Ocean |
_version_ |
1800873780680065024 |