Bromine, iodine and sodium in surface snow along the 2013 Talos Dome-GV7 traverse (northern Victoria Land, East Antarctica)
Halogen chemistry in the polar regions occurs through the release of halogen elements from different sources. Bromine is primarily emitted from sea salt aerosols and other saline condensed phases associated with sea ice surfaces, while iodine is affected by the release of organic compounds from alga...
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Online Access: | https://hdl.handle.net/20.500.12079/1799 https://doi.org/10.5194/tc-11-693-2017 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85015790183&doi=10.5194%2ftc-11-693-2017&partnerID=40&md5=bdbd34f3296604774b662701e8c9c5c8 |
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ftenea:oai:iris.enea.it:20.500.12079/1799 2024-03-31T07:48:14+00:00 Bromine, iodine and sodium in surface snow along the 2013 Talos Dome-GV7 traverse (northern Victoria Land, East Antarctica) Frezzotti, M. Frezzotti, M. 2017 https://hdl.handle.net/20.500.12079/1799 https://doi.org/10.5194/tc-11-693-2017 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85015790183&doi=10.5194%2ftc-11-693-2017&partnerID=40&md5=bdbd34f3296604774b662701e8c9c5c8 en eng Copernicus GmbH volume:11 issue:2 numberofpages:693 - 705 journal:THE CRYOSPHERE http://hdl.handle.net/20.500.12079/1799 doi:10.5194/tc-11-693-2017 info:eu-repo/semantics/altIdentifier/scopus/Scopus ID: 2-s2.0-85015790183 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85015790183&doi=10.5194%2ftc-11-693-2017&partnerID=40&md5=bdbd34f3296604774b662701e8c9c5c8 info:eu-repo/semantics/article 2017 ftenea https://doi.org/20.500.12079/179910.5194/tc-11-693-2017 2024-03-06T00:15:28Z Halogen chemistry in the polar regions occurs through the release of halogen elements from different sources. Bromine is primarily emitted from sea salt aerosols and other saline condensed phases associated with sea ice surfaces, while iodine is affected by the release of organic compounds from algae colonies living within the sea ice environment. Measurements of halogen species in polar snow samples are limited to a few sites although there is some evidence that they are related to sea ice extent. We examine here total bromine, iodine and sodium concentrations in a series of 2 m cores collected during a traverse from Talos Dome (72°48'S, 159°06'E) to GV7 (70°41'S, 158°51'E) analyzed by inductively coupled plasma-sector field mass spectrometry (ICP-SFMS) at a resolution of 5cm. We find a distinct seasonality of the bromine enrichment signal in most of the cores, with maxima during the austral spring. Iodine shows average concentrations of 0.04 ppb with little variability. No distinct seasonality is found for iodine and sodium. The transect reveals homogeneous air-to-snow fluxes for the three chemical species along the transect due to competing effects of air masses originating from the Ross Sea and the Southern Ocean. © 2017 Author(s). Article in Journal/Newspaper Antarc* Antarctica East Antarctica Ross Sea Sea ice Southern Ocean Victoria Land ENEA-IRIS Open Archive (Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile) Austral East Antarctica Ross Sea Southern Ocean Talos Dome ENVELOPE(158.000,158.000,-73.000,-73.000) Victoria Land The Cryosphere 11 2 693 705 |
institution |
Open Polar |
collection |
ENEA-IRIS Open Archive (Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile) |
op_collection_id |
ftenea |
language |
English |
description |
Halogen chemistry in the polar regions occurs through the release of halogen elements from different sources. Bromine is primarily emitted from sea salt aerosols and other saline condensed phases associated with sea ice surfaces, while iodine is affected by the release of organic compounds from algae colonies living within the sea ice environment. Measurements of halogen species in polar snow samples are limited to a few sites although there is some evidence that they are related to sea ice extent. We examine here total bromine, iodine and sodium concentrations in a series of 2 m cores collected during a traverse from Talos Dome (72°48'S, 159°06'E) to GV7 (70°41'S, 158°51'E) analyzed by inductively coupled plasma-sector field mass spectrometry (ICP-SFMS) at a resolution of 5cm. We find a distinct seasonality of the bromine enrichment signal in most of the cores, with maxima during the austral spring. Iodine shows average concentrations of 0.04 ppb with little variability. No distinct seasonality is found for iodine and sodium. The transect reveals homogeneous air-to-snow fluxes for the three chemical species along the transect due to competing effects of air masses originating from the Ross Sea and the Southern Ocean. © 2017 Author(s). |
author2 |
Frezzotti, M. |
format |
Article in Journal/Newspaper |
author |
Frezzotti, M. |
spellingShingle |
Frezzotti, M. Bromine, iodine and sodium in surface snow along the 2013 Talos Dome-GV7 traverse (northern Victoria Land, East Antarctica) |
author_facet |
Frezzotti, M. |
author_sort |
Frezzotti, M. |
title |
Bromine, iodine and sodium in surface snow along the 2013 Talos Dome-GV7 traverse (northern Victoria Land, East Antarctica) |
title_short |
Bromine, iodine and sodium in surface snow along the 2013 Talos Dome-GV7 traverse (northern Victoria Land, East Antarctica) |
title_full |
Bromine, iodine and sodium in surface snow along the 2013 Talos Dome-GV7 traverse (northern Victoria Land, East Antarctica) |
title_fullStr |
Bromine, iodine and sodium in surface snow along the 2013 Talos Dome-GV7 traverse (northern Victoria Land, East Antarctica) |
title_full_unstemmed |
Bromine, iodine and sodium in surface snow along the 2013 Talos Dome-GV7 traverse (northern Victoria Land, East Antarctica) |
title_sort |
bromine, iodine and sodium in surface snow along the 2013 talos dome-gv7 traverse (northern victoria land, east antarctica) |
publisher |
Copernicus GmbH |
publishDate |
2017 |
url |
https://hdl.handle.net/20.500.12079/1799 https://doi.org/10.5194/tc-11-693-2017 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85015790183&doi=10.5194%2ftc-11-693-2017&partnerID=40&md5=bdbd34f3296604774b662701e8c9c5c8 |
long_lat |
ENVELOPE(158.000,158.000,-73.000,-73.000) |
geographic |
Austral East Antarctica Ross Sea Southern Ocean Talos Dome Victoria Land |
geographic_facet |
Austral East Antarctica Ross Sea Southern Ocean Talos Dome Victoria Land |
genre |
Antarc* Antarctica East Antarctica Ross Sea Sea ice Southern Ocean Victoria Land |
genre_facet |
Antarc* Antarctica East Antarctica Ross Sea Sea ice Southern Ocean Victoria Land |
op_relation |
volume:11 issue:2 numberofpages:693 - 705 journal:THE CRYOSPHERE http://hdl.handle.net/20.500.12079/1799 doi:10.5194/tc-11-693-2017 info:eu-repo/semantics/altIdentifier/scopus/Scopus ID: 2-s2.0-85015790183 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85015790183&doi=10.5194%2ftc-11-693-2017&partnerID=40&md5=bdbd34f3296604774b662701e8c9c5c8 |
op_doi |
https://doi.org/20.500.12079/179910.5194/tc-11-693-2017 |
container_title |
The Cryosphere |
container_volume |
11 |
container_issue |
2 |
container_start_page |
693 |
op_container_end_page |
705 |
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1795029736399831040 |