Frost flower chemical signature in winter snow on Vestfonna ice cap, Nordaustlandet, Svalbard
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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ftdoajarticles:oai:doaj.org/article:322e7c9f51344db99058725df824039b 2023-05-15T13:53:25+02:00 Frost flower chemical signature in winter snow on Vestfonna ice cap, Nordaustlandet, Svalbard E. Beaudon J. Moore 2009-07-01T00:00:00Z https://doaj.org/article/322e7c9f51344db99058725df824039b EN eng Copernicus Publications http://www.the-cryosphere.net/3/147/2009/tc-3-147-2009.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 1994-0416 1994-0424 https://doaj.org/article/322e7c9f51344db99058725df824039b The Cryosphere, Vol 3, Iss 2, Pp 147-154 (2009) Environmental sciences GE1-350 Geology QE1-996.5 article 2009 ftdoajarticles 2022-12-31T13:47:09Z 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 [SO 4 2- /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. Article in Journal/Newspaper Antarc* Antarctica Arctic Hinlopen Strait Ice cap Nordaustlandet Sea ice Svalbard The Cryosphere Vestfonna Directory of Open Access Journals: DOAJ Articles Arctic Svalbard Nordaustlandet ENVELOPE(22.400,22.400,79.800,79.800) Vestfonna ENVELOPE(20.761,20.761,79.941,79.941) |
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 E. Beaudon J. Moore Frost flower chemical signature in winter snow on Vestfonna ice cap, Nordaustlandet, Svalbard |
topic_facet |
Environmental sciences GE1-350 Geology QE1-996.5 |
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 [SO 4 2- /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 |
Article in Journal/Newspaper |
author |
E. Beaudon J. Moore |
author_facet |
E. Beaudon J. Moore |
author_sort |
E. Beaudon |
title |
Frost flower chemical signature in winter snow on Vestfonna ice cap, Nordaustlandet, Svalbard |
title_short |
Frost flower chemical signature in winter snow on Vestfonna ice cap, Nordaustlandet, Svalbard |
title_full |
Frost flower chemical signature in winter snow on Vestfonna ice cap, Nordaustlandet, Svalbard |
title_fullStr |
Frost flower chemical signature in winter snow on Vestfonna ice cap, Nordaustlandet, Svalbard |
title_full_unstemmed |
Frost flower chemical signature in winter snow on Vestfonna ice cap, Nordaustlandet, Svalbard |
title_sort |
frost flower chemical signature in winter snow on vestfonna ice cap, nordaustlandet, svalbard |
publisher |
Copernicus Publications |
publishDate |
2009 |
url |
https://doaj.org/article/322e7c9f51344db99058725df824039b |
long_lat |
ENVELOPE(22.400,22.400,79.800,79.800) ENVELOPE(20.761,20.761,79.941,79.941) |
geographic |
Arctic Svalbard Nordaustlandet Vestfonna |
geographic_facet |
Arctic Svalbard Nordaustlandet Vestfonna |
genre |
Antarc* Antarctica Arctic Hinlopen Strait Ice cap Nordaustlandet Sea ice Svalbard The Cryosphere Vestfonna |
genre_facet |
Antarc* Antarctica Arctic Hinlopen Strait Ice cap Nordaustlandet Sea ice Svalbard The Cryosphere Vestfonna |
op_source |
The Cryosphere, Vol 3, Iss 2, Pp 147-154 (2009) |
op_relation |
http://www.the-cryosphere.net/3/147/2009/tc-3-147-2009.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 1994-0416 1994-0424 https://doaj.org/article/322e7c9f51344db99058725df824039b |
_version_ |
1766258510068187136 |