Air temperature variability in the vertical profile over the coastal area of Petuniabukta, central Spitsbergen
Abstract A two-year-long data set of air temperature from four different altitudes above Petuniabukta, central Spitsbergen, was analysed in order to assess the near-surface temperature lapse rates and the relative frequency of air temperature inversion occurrence. From August 2013 to July 2015, air...
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Walter de Gruyter GmbH
2017
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Online Access: | http://dx.doi.org/10.1515/popore-2017-0004 http://content.sciendo.com/view/journals/popore/38/1/article-p41.xml http://www.degruyter.com/view/j/popore.2017.38.issue-1/popore-2017-0004/popore-2017-0004.pdf |
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crdegruyter:10.1515/popore-2017-0004 2024-09-15T18:31:20+00:00 Air temperature variability in the vertical profile over the coastal area of Petuniabukta, central Spitsbergen Ambrožová, Klára Láska, Kamil 2017 http://dx.doi.org/10.1515/popore-2017-0004 http://content.sciendo.com/view/journals/popore/38/1/article-p41.xml http://www.degruyter.com/view/j/popore.2017.38.issue-1/popore-2017-0004/popore-2017-0004.pdf unknown Walter de Gruyter GmbH http://creativecommons.org/licenses/by-nc-nd/3.0 Polish Polar Research volume 38, issue 1, page 41-60 ISSN 2081-8262 journal-article 2017 crdegruyter https://doi.org/10.1515/popore-2017-0004 2024-08-19T04:08:31Z Abstract A two-year-long data set of air temperature from four different altitudes above Petuniabukta, central Spitsbergen, was analysed in order to assess the near-surface temperature lapse rates and the relative frequency of air temperature inversion occurrence. From August 2013 to July 2015, air temperatures at adjacent altitudes in Petuniabukta were strongly correlated. The near-surface lapse rates in all three layers differed significantly both from the average lapse rate in the international standard atmosphere (0.65°C 100 m −1 ) and the lapse rate calculated by linear regression. A pronounced annual cycle was detected in the lowermost air layer (from 23 to 136 m a.s.l.) with a variable near-surface lapse rate in the winter months, while an annual cycle was not apparent in the air layers above 136 m a.s.l. The lowermost layer was also characterized by a notable daily cycle in near-surface lapse rate in spring and autumn. Air temperature inversions occurred in up to 80% of the study period in the air layer below 136 m a.s.l., with the relative frequency being much lower in the other two air layers. The air temperature inversions lasted as long as 139 hours. A case study revealed that one of the strongest air temperature inversions was connected to an area of lower pressure gradients at the 850-hPa pressure level. Article in Journal/Newspaper Polar Research Spitsbergen De Gruyter Polish Polar Research 38 1 41 60 |
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De Gruyter |
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Abstract A two-year-long data set of air temperature from four different altitudes above Petuniabukta, central Spitsbergen, was analysed in order to assess the near-surface temperature lapse rates and the relative frequency of air temperature inversion occurrence. From August 2013 to July 2015, air temperatures at adjacent altitudes in Petuniabukta were strongly correlated. The near-surface lapse rates in all three layers differed significantly both from the average lapse rate in the international standard atmosphere (0.65°C 100 m −1 ) and the lapse rate calculated by linear regression. A pronounced annual cycle was detected in the lowermost air layer (from 23 to 136 m a.s.l.) with a variable near-surface lapse rate in the winter months, while an annual cycle was not apparent in the air layers above 136 m a.s.l. The lowermost layer was also characterized by a notable daily cycle in near-surface lapse rate in spring and autumn. Air temperature inversions occurred in up to 80% of the study period in the air layer below 136 m a.s.l., with the relative frequency being much lower in the other two air layers. The air temperature inversions lasted as long as 139 hours. A case study revealed that one of the strongest air temperature inversions was connected to an area of lower pressure gradients at the 850-hPa pressure level. |
format |
Article in Journal/Newspaper |
author |
Ambrožová, Klára Láska, Kamil |
spellingShingle |
Ambrožová, Klára Láska, Kamil Air temperature variability in the vertical profile over the coastal area of Petuniabukta, central Spitsbergen |
author_facet |
Ambrožová, Klára Láska, Kamil |
author_sort |
Ambrožová, Klára |
title |
Air temperature variability in the vertical profile over the coastal area of Petuniabukta, central Spitsbergen |
title_short |
Air temperature variability in the vertical profile over the coastal area of Petuniabukta, central Spitsbergen |
title_full |
Air temperature variability in the vertical profile over the coastal area of Petuniabukta, central Spitsbergen |
title_fullStr |
Air temperature variability in the vertical profile over the coastal area of Petuniabukta, central Spitsbergen |
title_full_unstemmed |
Air temperature variability in the vertical profile over the coastal area of Petuniabukta, central Spitsbergen |
title_sort |
air temperature variability in the vertical profile over the coastal area of petuniabukta, central spitsbergen |
publisher |
Walter de Gruyter GmbH |
publishDate |
2017 |
url |
http://dx.doi.org/10.1515/popore-2017-0004 http://content.sciendo.com/view/journals/popore/38/1/article-p41.xml http://www.degruyter.com/view/j/popore.2017.38.issue-1/popore-2017-0004/popore-2017-0004.pdf |
genre |
Polar Research Spitsbergen |
genre_facet |
Polar Research Spitsbergen |
op_source |
Polish Polar Research volume 38, issue 1, page 41-60 ISSN 2081-8262 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/3.0 |
op_doi |
https://doi.org/10.1515/popore-2017-0004 |
container_title |
Polish Polar Research |
container_volume |
38 |
container_issue |
1 |
container_start_page |
41 |
op_container_end_page |
60 |
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1810472969312403456 |