Geochemistry of frost flowers and snow obtained near Ahlmann summit, Vestfonna ice cap
The chemistry of snow and ice cores from Svalbard is influenced by variations in local sea ice margin and distance to open water. Snow pits sampled at two summits of Vestfonna ice cap (Nordaustlandet, Svalbard), exhibit spatially heterogeneous soluble ions concentrations despite similar accumulation...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.807202 2024-09-15T17:43:46+00:00 Geochemistry of frost flowers and snow obtained near Ahlmann summit, Vestfonna ice cap Beaudon, Emilie Moore, John C MEDIAN LATITUDE: 28.116767 * MEDIAN LONGITUDE: 4.823133 * SOUTH-BOUND LATITUDE: -75.608000 * WEST-BOUND LONGITUDE: -26.214000 * NORTH-BOUND LATITUDE: 79.983300 * EAST-BOUND LONGITUDE: 21.016700 * DATE/TIME START: 2007-04-01T00:00:00 * DATE/TIME END: 2007-05-31T00:00:00 2009 application/zip, 3 datasets https://doi.pangaea.de/10.1594/PANGAEA.807202 https://doi.org/10.1594/PANGAEA.807202 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.807202 https://doi.org/10.1594/PANGAEA.807202 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Beaudon, Emilie; Moore, J (2009): Frost flower chemical signature in winter snow on Vestfonna ice cap, Nordaustlandet, Svalbard. The Cryosphere, 3(2), 147-154, https://doi.org/10.5194/tc-3-147-2009 International Polar Year (2007-2008) IPY dataset publication series 2009 ftpangaea https://doi.org/10.1594/PANGAEA.80720210.5194/tc-3-147-2009 2024-07-24T02:31:21Z The chemistry of snow and ice cores from Svalbard is influenced by variations in local sea ice margin and distance to open water. Snow pits sampled at two summits of Vestfonna ice cap (Nordaustlandet, Svalbard), exhibit spatially heterogeneous soluble ions concentrations despite similar accumulation rates, reflecting the importance of small-scale weather patterns on this island ice cap. The snow pack on the western summit shows higher average values of marine ions and a winter snow layer that is relatively depleted in sulphate. One part of the winter snow pack exhibits a [SO4-/Na+] ratio reduced by two thirds compared with its ratio in sea water. This low sulphate content in winter snow is interpreted as the signature of frost flowers, which are formed on young sea ice when offshore winds predominate. Frost flowers have been described as the dominant source of sea salt to aerosol and precipitation in ice cores in coastal Antarctica but this is the first time their chemical signal has been described in the Arctic. The eastern summit does not show any frost flower signature and we interpret the unusually dynamic ice transport and rapid formation of thin ice on the Hinlopen Strait as the source of the frost flowers. Other/Unknown Material Antarc* Antarctica Hinlopen Strait Ice cap International Polar Year IPY Nordaustlandet Sea ice Svalbard The Cryosphere Vestfonna PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-26.214000,21.016700,79.983300,-75.608000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
International Polar Year (2007-2008) IPY |
spellingShingle |
International Polar Year (2007-2008) IPY Beaudon, Emilie Moore, John C Geochemistry of frost flowers and snow obtained near Ahlmann summit, Vestfonna ice cap |
topic_facet |
International Polar Year (2007-2008) IPY |
description |
The chemistry of snow and ice cores from Svalbard is influenced by variations in local sea ice margin and distance to open water. Snow pits sampled at two summits of Vestfonna ice cap (Nordaustlandet, Svalbard), exhibit spatially heterogeneous soluble ions concentrations despite similar accumulation rates, reflecting the importance of small-scale weather patterns on this island ice cap. The snow pack on the western summit shows higher average values of marine ions and a winter snow layer that is relatively depleted in sulphate. One part of the winter snow pack exhibits a [SO4-/Na+] ratio reduced by two thirds compared with its ratio in sea water. This low sulphate content in winter snow is interpreted as the signature of frost flowers, which are formed on young sea ice when offshore winds predominate. Frost flowers have been described as the dominant source of sea salt to aerosol and precipitation in ice cores in coastal Antarctica but this is the first time their chemical signal has been described in the Arctic. The eastern summit does not show any frost flower signature and we interpret the unusually dynamic ice transport and rapid formation of thin ice on the Hinlopen Strait as the source of the frost flowers. |
format |
Other/Unknown Material |
author |
Beaudon, Emilie Moore, John C |
author_facet |
Beaudon, Emilie Moore, John C |
author_sort |
Beaudon, Emilie |
title |
Geochemistry of frost flowers and snow obtained near Ahlmann summit, Vestfonna ice cap |
title_short |
Geochemistry of frost flowers and snow obtained near Ahlmann summit, Vestfonna ice cap |
title_full |
Geochemistry of frost flowers and snow obtained near Ahlmann summit, Vestfonna ice cap |
title_fullStr |
Geochemistry of frost flowers and snow obtained near Ahlmann summit, Vestfonna ice cap |
title_full_unstemmed |
Geochemistry of frost flowers and snow obtained near Ahlmann summit, Vestfonna ice cap |
title_sort |
geochemistry of frost flowers and snow obtained near ahlmann summit, vestfonna ice cap |
publisher |
PANGAEA |
publishDate |
2009 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.807202 https://doi.org/10.1594/PANGAEA.807202 |
op_coverage |
MEDIAN LATITUDE: 28.116767 * MEDIAN LONGITUDE: 4.823133 * SOUTH-BOUND LATITUDE: -75.608000 * WEST-BOUND LONGITUDE: -26.214000 * NORTH-BOUND LATITUDE: 79.983300 * EAST-BOUND LONGITUDE: 21.016700 * DATE/TIME START: 2007-04-01T00:00:00 * DATE/TIME END: 2007-05-31T00:00:00 |
long_lat |
ENVELOPE(-26.214000,21.016700,79.983300,-75.608000) |
genre |
Antarc* Antarctica Hinlopen Strait Ice cap International Polar Year IPY Nordaustlandet Sea ice Svalbard The Cryosphere Vestfonna |
genre_facet |
Antarc* Antarctica Hinlopen Strait Ice cap International Polar Year IPY Nordaustlandet Sea ice Svalbard The Cryosphere Vestfonna |
op_source |
Supplement to: Beaudon, Emilie; Moore, J (2009): Frost flower chemical signature in winter snow on Vestfonna ice cap, Nordaustlandet, Svalbard. The Cryosphere, 3(2), 147-154, https://doi.org/10.5194/tc-3-147-2009 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.807202 https://doi.org/10.1594/PANGAEA.807202 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.80720210.5194/tc-3-147-2009 |
_version_ |
1810490938260193280 |