Central Svalbard 2000-2011 meteorological dynamics and periglacial landscape response
Local mountain meteorology of the landscape around Longyearbyen in central Svalbard is analyzed through the decade from 2000 to 2011. Standard meteorological stations from close to sea level and up to 464 m a.s.1. located on different periglacial landforms, have been used. During winters with little...
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Online Access: | https://curis.ku.dk/portal/da/publications/central-svalbard-20002011-meteorological-dynamics-and-periglacial-landscape-response(df56159f-6281-4a51-9574-3869a7fc52e0).html https://doi.org/10.1657/1938-4246-45.1.6 |
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ftcopenhagenunip:oai:pure.atira.dk:publications/df56159f-6281-4a51-9574-3869a7fc52e0 2024-04-28T08:03:24+00:00 Central Svalbard 2000-2011 meteorological dynamics and periglacial landscape response Christiansen, Hanne Hvidtfeldt Humlum, O. Eckerstorfer, M. 2013 https://curis.ku.dk/portal/da/publications/central-svalbard-20002011-meteorological-dynamics-and-periglacial-landscape-response(df56159f-6281-4a51-9574-3869a7fc52e0).html https://doi.org/10.1657/1938-4246-45.1.6 eng eng info:eu-repo/semantics/closedAccess Christiansen , H H , Humlum , O & Eckerstorfer , M 2013 , ' Central Svalbard 2000-2011 meteorological dynamics and periglacial landscape response ' , Arctic, Antarctic, and Alpine Research , vol. 45 , no. 1 , pp. 6-18 . https://doi.org/10.1657/1938-4246-45.1.6 airflow climate change cooling freezing landscape periglacial environment permafrost sea ice snow avalanche solifluction topographic effect weather station wind velocity Arctic Longyearbyen Spitsbergen Svalbard Svalbard and Jan Mayen article 2013 ftcopenhagenunip https://doi.org/10.1657/1938-4246-45.1.6 2024-04-11T00:22:37Z Local mountain meteorology of the landscape around Longyearbyen in central Svalbard is analyzed through the decade from 2000 to 2011. Standard meteorological stations from close to sea level and up to 464 m a.s.1. located on different periglacial landforms, have been used. During winters with little sea ice, strong temperature inversions do not develop, and then there is a distinct cooling with height, as opposed to when sea ice is present. Airflow is accelerated due to topography and direction deflected in the confined valleys, whereas open plateaus have on average 1 m/s lower wind speeds with a regional SE direction. The permafrost thermal state is largely controlled by meteorology, with permafrost in the valley bottoms as cold as on the mountain plateaus. The periglacial landform most exposed to climatic variability is ice-wedges, which seem to crack mainly during shorter cooling periods. Such activity is also linked to temperature inversions, and thus also occur mainly when sea ice is present. Solifluction is mainly controlled by the balance between summer thawing and winter freezing in combination with snow dynamics, whereas avalanches are mainly wind controlled. Avalanches and avalanche controlled landforms are least sensitive to climatic variability. Article in Journal/Newspaper Antarctic and Alpine Research Arctic Arctic Climate change Ice Jan Mayen Longyearbyen permafrost Sea ice Svalbard wedge* Spitsbergen University of Copenhagen: Research |
institution |
Open Polar |
collection |
University of Copenhagen: Research |
op_collection_id |
ftcopenhagenunip |
language |
English |
topic |
airflow climate change cooling freezing landscape periglacial environment permafrost sea ice snow avalanche solifluction topographic effect weather station wind velocity Arctic Longyearbyen Spitsbergen Svalbard Svalbard and Jan Mayen |
spellingShingle |
airflow climate change cooling freezing landscape periglacial environment permafrost sea ice snow avalanche solifluction topographic effect weather station wind velocity Arctic Longyearbyen Spitsbergen Svalbard Svalbard and Jan Mayen Christiansen, Hanne Hvidtfeldt Humlum, O. Eckerstorfer, M. Central Svalbard 2000-2011 meteorological dynamics and periglacial landscape response |
topic_facet |
airflow climate change cooling freezing landscape periglacial environment permafrost sea ice snow avalanche solifluction topographic effect weather station wind velocity Arctic Longyearbyen Spitsbergen Svalbard Svalbard and Jan Mayen |
description |
Local mountain meteorology of the landscape around Longyearbyen in central Svalbard is analyzed through the decade from 2000 to 2011. Standard meteorological stations from close to sea level and up to 464 m a.s.1. located on different periglacial landforms, have been used. During winters with little sea ice, strong temperature inversions do not develop, and then there is a distinct cooling with height, as opposed to when sea ice is present. Airflow is accelerated due to topography and direction deflected in the confined valleys, whereas open plateaus have on average 1 m/s lower wind speeds with a regional SE direction. The permafrost thermal state is largely controlled by meteorology, with permafrost in the valley bottoms as cold as on the mountain plateaus. The periglacial landform most exposed to climatic variability is ice-wedges, which seem to crack mainly during shorter cooling periods. Such activity is also linked to temperature inversions, and thus also occur mainly when sea ice is present. Solifluction is mainly controlled by the balance between summer thawing and winter freezing in combination with snow dynamics, whereas avalanches are mainly wind controlled. Avalanches and avalanche controlled landforms are least sensitive to climatic variability. |
format |
Article in Journal/Newspaper |
author |
Christiansen, Hanne Hvidtfeldt Humlum, O. Eckerstorfer, M. |
author_facet |
Christiansen, Hanne Hvidtfeldt Humlum, O. Eckerstorfer, M. |
author_sort |
Christiansen, Hanne Hvidtfeldt |
title |
Central Svalbard 2000-2011 meteorological dynamics and periglacial landscape response |
title_short |
Central Svalbard 2000-2011 meteorological dynamics and periglacial landscape response |
title_full |
Central Svalbard 2000-2011 meteorological dynamics and periglacial landscape response |
title_fullStr |
Central Svalbard 2000-2011 meteorological dynamics and periglacial landscape response |
title_full_unstemmed |
Central Svalbard 2000-2011 meteorological dynamics and periglacial landscape response |
title_sort |
central svalbard 2000-2011 meteorological dynamics and periglacial landscape response |
publishDate |
2013 |
url |
https://curis.ku.dk/portal/da/publications/central-svalbard-20002011-meteorological-dynamics-and-periglacial-landscape-response(df56159f-6281-4a51-9574-3869a7fc52e0).html https://doi.org/10.1657/1938-4246-45.1.6 |
genre |
Antarctic and Alpine Research Arctic Arctic Climate change Ice Jan Mayen Longyearbyen permafrost Sea ice Svalbard wedge* Spitsbergen |
genre_facet |
Antarctic and Alpine Research Arctic Arctic Climate change Ice Jan Mayen Longyearbyen permafrost Sea ice Svalbard wedge* Spitsbergen |
op_source |
Christiansen , H H , Humlum , O & Eckerstorfer , M 2013 , ' Central Svalbard 2000-2011 meteorological dynamics and periglacial landscape response ' , Arctic, Antarctic, and Alpine Research , vol. 45 , no. 1 , pp. 6-18 . https://doi.org/10.1657/1938-4246-45.1.6 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1657/1938-4246-45.1.6 |
_version_ |
1797574534093602816 |