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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ftunivroma3iris:oai:iris.uniroma3.it:11590/353563 2024-02-27T08:33:44+00:00 Bromine, iodine and sodium in surface snow along the 2013 Talos Dome-GV7 traverse (northern Victoria Land, East Antarctica) Maffezzoli N. Spolaor A. Barbante C. Berto M. Frezzotti M. Vallelonga P. Maffezzoli, N. Spolaor, A. Barbante, C. Berto, M. Frezzotti, M. Vallelonga, P. 2017 http://hdl.handle.net/11590/353563 https://doi.org/10.5194/tc-11-693-2017 http://www.the-cryosphere.net/volumes_and_issues.html eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000398590200001 volume:11 issue:2 firstpage:693 lastpage:705 numberofpages:13 journal:THE CRYOSPHERE http://hdl.handle.net/11590/353563 doi:10.5194/tc-11-693-2017 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85015790183 http://www.the-cryosphere.net/volumes_and_issues.html info:eu-repo/semantics/article 2017 ftunivroma3iris https://doi.org/10.5194/tc-11-693-2017 2024-01-31T17:41:13Z 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. Article in Journal/Newspaper Antarc* Antarctica East Antarctica Ross Sea Sea ice Southern Ocean Victoria Land Anagrafe della Ricerca d'Ateneo (Universitá degli studi Roma Tre) Southern Ocean East Antarctica Austral Ross Sea Victoria Land Talos Dome ENVELOPE(158.000,158.000,-73.000,-73.000) The Cryosphere 11 2 693 705 |
institution |
Open Polar |
collection |
Anagrafe della Ricerca d'Ateneo (Universitá degli studi Roma Tre) |
op_collection_id |
ftunivroma3iris |
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. |
author2 |
Maffezzoli, N. Spolaor, A. Barbante, C. Berto, M. Frezzotti, M. Vallelonga, P. |
format |
Article in Journal/Newspaper |
author |
Maffezzoli N. Spolaor A. Barbante C. Berto M. Frezzotti M. Vallelonga P. |
spellingShingle |
Maffezzoli N. Spolaor A. Barbante C. Berto M. Frezzotti M. Vallelonga P. Bromine, iodine and sodium in surface snow along the 2013 Talos Dome-GV7 traverse (northern Victoria Land, East Antarctica) |
author_facet |
Maffezzoli N. Spolaor A. Barbante C. Berto M. Frezzotti M. Vallelonga P. |
author_sort |
Maffezzoli N. |
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) |
publishDate |
2017 |
url |
http://hdl.handle.net/11590/353563 https://doi.org/10.5194/tc-11-693-2017 http://www.the-cryosphere.net/volumes_and_issues.html |
long_lat |
ENVELOPE(158.000,158.000,-73.000,-73.000) |
geographic |
Southern Ocean East Antarctica Austral Ross Sea Victoria Land Talos Dome |
geographic_facet |
Southern Ocean East Antarctica Austral Ross Sea Victoria Land Talos Dome |
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 |
info:eu-repo/semantics/altIdentifier/wos/WOS:000398590200001 volume:11 issue:2 firstpage:693 lastpage:705 numberofpages:13 journal:THE CRYOSPHERE http://hdl.handle.net/11590/353563 doi:10.5194/tc-11-693-2017 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85015790183 http://www.the-cryosphere.net/volumes_and_issues.html |
op_doi |
https://doi.org/10.5194/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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1792047480808931328 |