Stable isotopes, 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 sea salt rich aerosols from sea ice surfaces and 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 they are shown...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.873041 2023-05-15T13:44:47+02:00 Stable isotopes, bromine, iodine and sodium in surface snow along the 2013 Talos Dome - GV7 traverse (Northern Victoria Land, East Antarctica) Maffezzoli, Niccolò Spolaor, Andrea Barbante, Carlo Bertò, Michele Frezzotti, Massimo Vallelonga, Paul T MEDIAN LATITUDE: -71.275357 * MEDIAN LONGITUDE: 158.642431 * SOUTH-BOUND LATITUDE: -72.800000 * WEST-BOUND LONGITUDE: 158.383300 * NORTH-BOUND LATITUDE: -70.350000 * EAST-BOUND LONGITUDE: 159.100000 * DATE/TIME START: 2013-11-20T18:00:00 * DATE/TIME END: 2014-01-08T18:00:00 2017-02-28 application/zip, 8 datasets https://doi.pangaea.de/10.1594/PANGAEA.873041 https://doi.org/10.1594/PANGAEA.873041 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.873041 https://doi.org/10.1594/PANGAEA.873041 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Maffezzoli, Niccolò; Spolaor, Andrea; Barbante, Carlo; Bertò, Michele; Frezzotti, Massimo; Vallelonga, Paul T (2017): Bromine, iodine and sodium in surface snow along the 2013 Talos Dome–GV7 traverse (northern Victoria Land, East Antarctica). The Cryosphere, 11(2), 693-705, https://doi.org/10.5194/tc-11-693-2017 Dataset 2017 ftpangaea https://doi.org/10.1594/PANGAEA.873041 https://doi.org/10.5194/tc-11-693-2017 2023-01-20T07:33:54Z Halogen chemistry in the polar regions occurs through the release of sea salt rich aerosols from sea ice surfaces and 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 they are shown to be closely 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 all cores, with maxima during the austral late spring. Iodine showed average concentrations of 0.04 ppb with little variability. No distinct seasonality was found for iodine and sodium. The transect revealed homogeneous 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. The flux measurements are consistent with the uniform values of BrO and IO detected from satellite observations. Similar trends are found for annual bromine enrichment and 130-190° E First Year Sea Ice for the 2010-2013 period. Dataset Antarc* Antarctica East Antarctica Ross Sea Sea ice Southern Ocean The Cryosphere Victoria Land PANGAEA - Data Publisher for Earth & Environmental Science Austral East Antarctica Ross Sea Southern Ocean Talos Dome ENVELOPE(158.000,158.000,-73.000,-73.000) Victoria Land ENVELOPE(158.383300,159.100000,-70.350000,-72.800000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
description |
Halogen chemistry in the polar regions occurs through the release of sea salt rich aerosols from sea ice surfaces and 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 they are shown to be closely 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 all cores, with maxima during the austral late spring. Iodine showed average concentrations of 0.04 ppb with little variability. No distinct seasonality was found for iodine and sodium. The transect revealed homogeneous 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. The flux measurements are consistent with the uniform values of BrO and IO detected from satellite observations. Similar trends are found for annual bromine enrichment and 130-190° E First Year Sea Ice for the 2010-2013 period. |
format |
Dataset |
author |
Maffezzoli, Niccolò Spolaor, Andrea Barbante, Carlo Bertò, Michele Frezzotti, Massimo Vallelonga, Paul T |
spellingShingle |
Maffezzoli, Niccolò Spolaor, Andrea Barbante, Carlo Bertò, Michele Frezzotti, Massimo Vallelonga, Paul T Stable isotopes, bromine, iodine and sodium in surface snow along the 2013 Talos Dome - GV7 traverse (Northern Victoria Land, East Antarctica) |
author_facet |
Maffezzoli, Niccolò Spolaor, Andrea Barbante, Carlo Bertò, Michele Frezzotti, Massimo Vallelonga, Paul T |
author_sort |
Maffezzoli, Niccolò |
title |
Stable isotopes, bromine, iodine and sodium in surface snow along the 2013 Talos Dome - GV7 traverse (Northern Victoria Land, East Antarctica) |
title_short |
Stable isotopes, bromine, iodine and sodium in surface snow along the 2013 Talos Dome - GV7 traverse (Northern Victoria Land, East Antarctica) |
title_full |
Stable isotopes, bromine, iodine and sodium in surface snow along the 2013 Talos Dome - GV7 traverse (Northern Victoria Land, East Antarctica) |
title_fullStr |
Stable isotopes, bromine, iodine and sodium in surface snow along the 2013 Talos Dome - GV7 traverse (Northern Victoria Land, East Antarctica) |
title_full_unstemmed |
Stable isotopes, bromine, iodine and sodium in surface snow along the 2013 Talos Dome - GV7 traverse (Northern Victoria Land, East Antarctica) |
title_sort |
stable isotopes, bromine, iodine and sodium in surface snow along the 2013 talos dome - gv7 traverse (northern victoria land, east antarctica) |
publisher |
PANGAEA |
publishDate |
2017 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.873041 https://doi.org/10.1594/PANGAEA.873041 |
op_coverage |
MEDIAN LATITUDE: -71.275357 * MEDIAN LONGITUDE: 158.642431 * SOUTH-BOUND LATITUDE: -72.800000 * WEST-BOUND LONGITUDE: 158.383300 * NORTH-BOUND LATITUDE: -70.350000 * EAST-BOUND LONGITUDE: 159.100000 * DATE/TIME START: 2013-11-20T18:00:00 * DATE/TIME END: 2014-01-08T18:00:00 |
long_lat |
ENVELOPE(158.000,158.000,-73.000,-73.000) ENVELOPE(158.383300,159.100000,-70.350000,-72.800000) |
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 |
Supplement to: Maffezzoli, Niccolò; Spolaor, Andrea; Barbante, Carlo; Bertò, Michele; Frezzotti, Massimo; Vallelonga, Paul T (2017): Bromine, iodine and sodium in surface snow along the 2013 Talos Dome–GV7 traverse (northern Victoria Land, East Antarctica). The Cryosphere, 11(2), 693-705, https://doi.org/10.5194/tc-11-693-2017 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.873041 https://doi.org/10.1594/PANGAEA.873041 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.873041 https://doi.org/10.5194/tc-11-693-2017 |
_version_ |
1766206535680131072 |