Physical properties and alpha-/gamma-HCH concentrations in sea-ice and snow samples obtained during a CCGS Amundsen cruise, eastern Beaufort Sea, supplement to: Pućko, Monika; Stern, Gary A; Macdonald, Robie W; Rosenberg, B; Barber, David G (2011): The influence of the atmosphere-snow-ice-ocean interactions on the levels of hexachlorocyclohexanes in the Arctic cryosphere. Journal of Geophysical Research, 116(C2), C02035
The alpha- and gamma-hexachlorocyclohexanes (HCHs) are being scavenged from the atmosphere by falling snow, with the average total scavenging ratios (WT) of 3.8 x 10**4 and 9.6 x 10**3, respectively. After deposition, HCH snow concentrations can decrease by 40% because of snowpack ventilation and in...
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ftdatacite:10.1594/pangaea.818648 2023-05-15T14:30:58+02:00 Physical properties and alpha-/gamma-HCH concentrations in sea-ice and snow samples obtained during a CCGS Amundsen cruise, eastern Beaufort Sea, supplement to: Pućko, Monika; Stern, Gary A; Macdonald, Robie W; Rosenberg, B; Barber, David G (2011): The influence of the atmosphere-snow-ice-ocean interactions on the levels of hexachlorocyclohexanes in the Arctic cryosphere. Journal of Geophysical Research, 116(C2), C02035 Pućko, Monika Stern, Gary A Macdonald, Robie W Rosenberg, B Barber, David G 2011 application/zip https://dx.doi.org/10.1594/pangaea.818648 https://doi.pangaea.de/10.1594/PANGAEA.818648 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1029/2010jc006614 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY International Polar Year 2007-2008 IPY Supplementary Collection of Datasets Collection article 2011 ftdatacite https://doi.org/10.1594/pangaea.818648 https://doi.org/10.1029/2010jc006614 2022-02-08T11:35:17Z The alpha- and gamma-hexachlorocyclohexanes (HCHs) are being scavenged from the atmosphere by falling snow, with the average total scavenging ratios (WT) of 3.8 x 10**4 and 9.6 x 10**3, respectively. After deposition, HCH snow concentrations can decrease by 40% because of snowpack ventilation and increase by 50% because of upward migration of brine from the ice. HCH vertical distribution in sufficiently cold winter sea ice, which maintains brine volume fractions <5%, reflects the ice growth history. Initially, the entrapment of brine (and HCHs) in ice depends on the rates of ice growth and desalination. However, after approximately the first week of ice formation, ice growth rate becomes dominant. Deviations of HCH concentrations from the values predicted by the ice bulk salinity (rate of brine entrapment) can be explained by spatial variability of HCHs in surface water. HCH burden in the majority of the ice column remains locked throughout most of the season until the early spring when snow meltwater percolates into the ice, delivering HCHs to the upper ocean via desalination by flushing. Percolation can lead to an increase in alpha- and gamma-HCH in the sea ice by up to 2%-18% and 4%-32%, respectively. : Part of the IPY Circumpolar Flaw Lead (CFL) System Study. Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150 Article in Journal/Newspaper arctic cryosphere Arctic Beaufort Sea International Polar Year IPY Sea ice DataCite Metadata Store (German National Library of Science and Technology) Arctic |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
International Polar Year 2007-2008 IPY |
spellingShingle |
International Polar Year 2007-2008 IPY Pućko, Monika Stern, Gary A Macdonald, Robie W Rosenberg, B Barber, David G Physical properties and alpha-/gamma-HCH concentrations in sea-ice and snow samples obtained during a CCGS Amundsen cruise, eastern Beaufort Sea, supplement to: Pućko, Monika; Stern, Gary A; Macdonald, Robie W; Rosenberg, B; Barber, David G (2011): The influence of the atmosphere-snow-ice-ocean interactions on the levels of hexachlorocyclohexanes in the Arctic cryosphere. Journal of Geophysical Research, 116(C2), C02035 |
topic_facet |
International Polar Year 2007-2008 IPY |
description |
The alpha- and gamma-hexachlorocyclohexanes (HCHs) are being scavenged from the atmosphere by falling snow, with the average total scavenging ratios (WT) of 3.8 x 10**4 and 9.6 x 10**3, respectively. After deposition, HCH snow concentrations can decrease by 40% because of snowpack ventilation and increase by 50% because of upward migration of brine from the ice. HCH vertical distribution in sufficiently cold winter sea ice, which maintains brine volume fractions <5%, reflects the ice growth history. Initially, the entrapment of brine (and HCHs) in ice depends on the rates of ice growth and desalination. However, after approximately the first week of ice formation, ice growth rate becomes dominant. Deviations of HCH concentrations from the values predicted by the ice bulk salinity (rate of brine entrapment) can be explained by spatial variability of HCHs in surface water. HCH burden in the majority of the ice column remains locked throughout most of the season until the early spring when snow meltwater percolates into the ice, delivering HCHs to the upper ocean via desalination by flushing. Percolation can lead to an increase in alpha- and gamma-HCH in the sea ice by up to 2%-18% and 4%-32%, respectively. : Part of the IPY Circumpolar Flaw Lead (CFL) System Study. Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150 |
format |
Article in Journal/Newspaper |
author |
Pućko, Monika Stern, Gary A Macdonald, Robie W Rosenberg, B Barber, David G |
author_facet |
Pućko, Monika Stern, Gary A Macdonald, Robie W Rosenberg, B Barber, David G |
author_sort |
Pućko, Monika |
title |
Physical properties and alpha-/gamma-HCH concentrations in sea-ice and snow samples obtained during a CCGS Amundsen cruise, eastern Beaufort Sea, supplement to: Pućko, Monika; Stern, Gary A; Macdonald, Robie W; Rosenberg, B; Barber, David G (2011): The influence of the atmosphere-snow-ice-ocean interactions on the levels of hexachlorocyclohexanes in the Arctic cryosphere. Journal of Geophysical Research, 116(C2), C02035 |
title_short |
Physical properties and alpha-/gamma-HCH concentrations in sea-ice and snow samples obtained during a CCGS Amundsen cruise, eastern Beaufort Sea, supplement to: Pućko, Monika; Stern, Gary A; Macdonald, Robie W; Rosenberg, B; Barber, David G (2011): The influence of the atmosphere-snow-ice-ocean interactions on the levels of hexachlorocyclohexanes in the Arctic cryosphere. Journal of Geophysical Research, 116(C2), C02035 |
title_full |
Physical properties and alpha-/gamma-HCH concentrations in sea-ice and snow samples obtained during a CCGS Amundsen cruise, eastern Beaufort Sea, supplement to: Pućko, Monika; Stern, Gary A; Macdonald, Robie W; Rosenberg, B; Barber, David G (2011): The influence of the atmosphere-snow-ice-ocean interactions on the levels of hexachlorocyclohexanes in the Arctic cryosphere. Journal of Geophysical Research, 116(C2), C02035 |
title_fullStr |
Physical properties and alpha-/gamma-HCH concentrations in sea-ice and snow samples obtained during a CCGS Amundsen cruise, eastern Beaufort Sea, supplement to: Pućko, Monika; Stern, Gary A; Macdonald, Robie W; Rosenberg, B; Barber, David G (2011): The influence of the atmosphere-snow-ice-ocean interactions on the levels of hexachlorocyclohexanes in the Arctic cryosphere. Journal of Geophysical Research, 116(C2), C02035 |
title_full_unstemmed |
Physical properties and alpha-/gamma-HCH concentrations in sea-ice and snow samples obtained during a CCGS Amundsen cruise, eastern Beaufort Sea, supplement to: Pućko, Monika; Stern, Gary A; Macdonald, Robie W; Rosenberg, B; Barber, David G (2011): The influence of the atmosphere-snow-ice-ocean interactions on the levels of hexachlorocyclohexanes in the Arctic cryosphere. Journal of Geophysical Research, 116(C2), C02035 |
title_sort |
physical properties and alpha-/gamma-hch concentrations in sea-ice and snow samples obtained during a ccgs amundsen cruise, eastern beaufort sea, supplement to: pućko, monika; stern, gary a; macdonald, robie w; rosenberg, b; barber, david g (2011): the influence of the atmosphere-snow-ice-ocean interactions on the levels of hexachlorocyclohexanes in the arctic cryosphere. journal of geophysical research, 116(c2), c02035 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2011 |
url |
https://dx.doi.org/10.1594/pangaea.818648 https://doi.pangaea.de/10.1594/PANGAEA.818648 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
arctic cryosphere Arctic Beaufort Sea International Polar Year IPY Sea ice |
genre_facet |
arctic cryosphere Arctic Beaufort Sea International Polar Year IPY Sea ice |
op_relation |
https://dx.doi.org/10.1029/2010jc006614 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.818648 https://doi.org/10.1029/2010jc006614 |
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1766304725193457664 |