A preliminary synoptic assessment of soil frost on Marion Island and the possible consequences of climate change in a maritime sub-Antarctic environment
Located in the sub-Antarctic, Marion Island (46° 54′ S, 37° 45′ E) has a distinct periglacial environment that is sensitive to climate change. Diurnal soil frost is the most important geomorphic process occurring on the island and this paper aims to unders...
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Norwegian Polar Institute
2012
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ftdoajarticles:oai:doaj.org/article:ffb19c80b3a8481eb388381e646a0ff6 2023-05-15T13:42:04+02:00 A preliminary synoptic assessment of soil frost on Marion Island and the possible consequences of climate change in a maritime sub-Antarctic environment Werner Nel 2012-03-01T00:00:00Z https://doi.org/10.3402/polar.v31i0.17626 https://doaj.org/article/ffb19c80b3a8481eb388381e646a0ff6 EN eng Norwegian Polar Institute http://www.polarresearch.net/index.php/polar/article/view/17626/pdf_1 https://doaj.org/toc/0800-0395 https://doaj.org/toc/1751-8369 doi:10.3402/polar.v31i0.17626 0800-0395 1751-8369 https://doaj.org/article/ffb19c80b3a8481eb388381e646a0ff6 Polar Research, Vol 31, Iss 0, Pp 1-7 (2012) Marion Island climate change synoptic weather soil frost sub-Antarctic air mass circulation Environmental sciences GE1-350 Oceanography GC1-1581 article 2012 ftdoajarticles https://doi.org/10.3402/polar.v31i0.17626 2022-12-31T13:12:19Z Located in the sub-Antarctic, Marion Island (46° 54′ S, 37° 45′ E) has a distinct periglacial environment that is sensitive to climate change. Diurnal soil frost is the most important geomorphic process occurring on the island and this paper aims to understand the synoptic weather circulation pattern associated with summer soil frost occurrence in a sub-Antarctic environment. Preliminary results from automated microclimate measurements in the interior of Marion Island show that summer soil frost is dependent on Antarctic air mass circulation. This occurs exclusively during post-cyclonic airflow after the passage of a cold front connected to a mid-latitudinal cyclone and subsequent ridging in of the South Atlantic Anticyclone behind the cold front, or when a series of low pressure systems passes over the island. The duration and intensity of soil frost cycles are dependent on the duration of post-cyclonic Antarctic air mass circulation. Summer soil frost on Marion Island is driven by a complex interaction between the latitudinal position of the passing cyclone, the latitudinal position of the ridging anticyclone as well as the trajectory of the air mass circulation. The data suggest that predicted trends in synoptic climate change in the sub-Antarctic may lead to non-linear responses in soil frost dynamics. Article in Journal/Newspaper Antarc* Antarctic Marion Island Polar Research Directory of Open Access Journals: DOAJ Articles Antarctic Polar Research 31 1 17626 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Marion Island climate change synoptic weather soil frost sub-Antarctic air mass circulation Environmental sciences GE1-350 Oceanography GC1-1581 |
spellingShingle |
Marion Island climate change synoptic weather soil frost sub-Antarctic air mass circulation Environmental sciences GE1-350 Oceanography GC1-1581 Werner Nel A preliminary synoptic assessment of soil frost on Marion Island and the possible consequences of climate change in a maritime sub-Antarctic environment |
topic_facet |
Marion Island climate change synoptic weather soil frost sub-Antarctic air mass circulation Environmental sciences GE1-350 Oceanography GC1-1581 |
description |
Located in the sub-Antarctic, Marion Island (46° 54′ S, 37° 45′ E) has a distinct periglacial environment that is sensitive to climate change. Diurnal soil frost is the most important geomorphic process occurring on the island and this paper aims to understand the synoptic weather circulation pattern associated with summer soil frost occurrence in a sub-Antarctic environment. Preliminary results from automated microclimate measurements in the interior of Marion Island show that summer soil frost is dependent on Antarctic air mass circulation. This occurs exclusively during post-cyclonic airflow after the passage of a cold front connected to a mid-latitudinal cyclone and subsequent ridging in of the South Atlantic Anticyclone behind the cold front, or when a series of low pressure systems passes over the island. The duration and intensity of soil frost cycles are dependent on the duration of post-cyclonic Antarctic air mass circulation. Summer soil frost on Marion Island is driven by a complex interaction between the latitudinal position of the passing cyclone, the latitudinal position of the ridging anticyclone as well as the trajectory of the air mass circulation. The data suggest that predicted trends in synoptic climate change in the sub-Antarctic may lead to non-linear responses in soil frost dynamics. |
format |
Article in Journal/Newspaper |
author |
Werner Nel |
author_facet |
Werner Nel |
author_sort |
Werner Nel |
title |
A preliminary synoptic assessment of soil frost on Marion Island and the possible consequences of climate change in a maritime sub-Antarctic environment |
title_short |
A preliminary synoptic assessment of soil frost on Marion Island and the possible consequences of climate change in a maritime sub-Antarctic environment |
title_full |
A preliminary synoptic assessment of soil frost on Marion Island and the possible consequences of climate change in a maritime sub-Antarctic environment |
title_fullStr |
A preliminary synoptic assessment of soil frost on Marion Island and the possible consequences of climate change in a maritime sub-Antarctic environment |
title_full_unstemmed |
A preliminary synoptic assessment of soil frost on Marion Island and the possible consequences of climate change in a maritime sub-Antarctic environment |
title_sort |
preliminary synoptic assessment of soil frost on marion island and the possible consequences of climate change in a maritime sub-antarctic environment |
publisher |
Norwegian Polar Institute |
publishDate |
2012 |
url |
https://doi.org/10.3402/polar.v31i0.17626 https://doaj.org/article/ffb19c80b3a8481eb388381e646a0ff6 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Marion Island Polar Research |
genre_facet |
Antarc* Antarctic Marion Island Polar Research |
op_source |
Polar Research, Vol 31, Iss 0, Pp 1-7 (2012) |
op_relation |
http://www.polarresearch.net/index.php/polar/article/view/17626/pdf_1 https://doaj.org/toc/0800-0395 https://doaj.org/toc/1751-8369 doi:10.3402/polar.v31i0.17626 0800-0395 1751-8369 https://doaj.org/article/ffb19c80b3a8481eb388381e646a0ff6 |
op_doi |
https://doi.org/10.3402/polar.v31i0.17626 |
container_title |
Polar Research |
container_volume |
31 |
container_issue |
1 |
container_start_page |
17626 |
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1766162239708987392 |