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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ftdoajarticles:oai:doaj.org/article:da2e3045d25b49aab2d25b46a40a854d 2023-05-15T13:37:39+02:00 Bromine, iodine and sodium in surface snow along the 2013 Talos Dome–GV7 traverse (northern Victoria Land, East Antarctica) N. Maffezzoli A. Spolaor C. Barbante M. Bertò M. Frezzotti P. Vallelonga 2017-03-01T00:00:00Z https://doi.org/10.5194/tc-11-693-2017 https://doaj.org/article/da2e3045d25b49aab2d25b46a40a854d EN eng Copernicus Publications http://www.the-cryosphere.net/11/693/2017/tc-11-693-2017.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 1994-0416 1994-0424 doi:10.5194/tc-11-693-2017 https://doaj.org/article/da2e3045d25b49aab2d25b46a40a854d The Cryosphere, Vol 11, Iss 2, Pp 693-705 (2017) Environmental sciences GE1-350 Geology QE1-996.5 article 2017 ftdoajarticles https://doi.org/10.5194/tc-11-693-2017 2022-12-31T00:28:16Z 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 5 cm. 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 The Cryosphere Victoria Land Directory of Open Access Journals: DOAJ Articles 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 |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental sciences GE1-350 Geology QE1-996.5 |
spellingShingle |
Environmental sciences GE1-350 Geology QE1-996.5 N. Maffezzoli A. Spolaor C. Barbante M. Bertò M. Frezzotti P. Vallelonga Bromine, iodine and sodium in surface snow along the 2013 Talos Dome–GV7 traverse (northern Victoria Land, East Antarctica) |
topic_facet |
Environmental sciences GE1-350 Geology QE1-996.5 |
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 5 cm. 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. |
format |
Article in Journal/Newspaper |
author |
N. Maffezzoli A. Spolaor C. Barbante M. Bertò M. Frezzotti P. Vallelonga |
author_facet |
N. Maffezzoli A. Spolaor C. Barbante M. Bertò M. Frezzotti P. Vallelonga |
author_sort |
N. Maffezzoli |
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 Publications |
publishDate |
2017 |
url |
https://doi.org/10.5194/tc-11-693-2017 https://doaj.org/article/da2e3045d25b49aab2d25b46a40a854d |
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 The Cryosphere Victoria Land |
genre_facet |
Antarc* Antarctica East Antarctica Ross Sea Sea ice Southern Ocean The Cryosphere Victoria Land |
op_source |
The Cryosphere, Vol 11, Iss 2, Pp 693-705 (2017) |
op_relation |
http://www.the-cryosphere.net/11/693/2017/tc-11-693-2017.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 1994-0416 1994-0424 doi:10.5194/tc-11-693-2017 https://doaj.org/article/da2e3045d25b49aab2d25b46a40a854d |
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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1766095575111958528 |