Short-term changes in thermal conditions and active layer thickness in the tundra of the Kaffiøyra region, NW Spitsbergen
Abstract This article describes and discusses the results of observations concerning short-term changes in the thermal conditions and the thickness of the active layer in a test field located in the tundra of the Kaffiøyra (NW Spitsbergen) during the summer season of 2015. One of the objectives was...
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crdegruyter:10.1515/bgeo-2016-0014 2023-05-15T18:40:04+02:00 Short-term changes in thermal conditions and active layer thickness in the tundra of the Kaffiøyra region, NW Spitsbergen Sobota, Ireneusz Dziembowski, Michał Grajewski, Tomasz Weckwerth, Piotr Nowak, Marcin Greń, Katarzyna 2016 http://dx.doi.org/10.1515/bgeo-2016-0014 http://content.sciendo.com/view/journals/bgeo/11/1/article-p43.xml https://www.sciendo.com/article/10.1515/bgeo-2016-0014 en eng Walter de Gruyter GmbH http://creativecommons.org/licenses/by-nc-nd/4.0 CC-BY-NC-ND Bulletin of Geography. Physical Geography Series volume 11, issue 1, page 43-53 ISSN 2300-8490 Geophysics Geography, Planning and Development journal-article 2016 crdegruyter https://doi.org/10.1515/bgeo-2016-0014 2022-04-14T05:04:48Z Abstract This article describes and discusses the results of observations concerning short-term changes in the thermal conditions and the thickness of the active layer in a test field located in the tundra of the Kaffiøyra (NW Spitsbergen) during the summer season of 2015. One of the objectives was to find a correlation between the dynamic of the changes and the local topography. In recent years, thawing of the active layer in the Kaffiøyra region has been considerably varied in individual summer seasons. The test field area was 100 square meters, comprised 36 measurement points and was situated at approximately 3 m a.s.l. in the tundra. The measurements of the thickness and temperature of the active layer were carried out in July, August and early September of 2015. The greatest thickness of the active layer in the tundra was found near the moraine, in the area with the sharpest slope (156 cm to 212 cm). Ground temperatures were observed to follow the prevailing weather conditions with a delay, which amounted to about 24 h at a depth of 25 cm, and as much as 48 h at a depth of 75 cm. A greater thickness of the active layer was found in the western part of the test field, in the vicinity of a tidal channel, and in the eastern part of the field, bordering on the foot of the Aavatsmarkbreen’s moraine. A considerable sloping of the land, combined with increased surface runoff and infiltration at the time of precipitation, makes the water penetrating into the active layer increase its temperature. This demonstrates that the local land forms (tidal channels and terminal moraines) have a substantial influence on the extent and rate of changes which occur in the active layer. Article in Journal/Newspaper Tundra Spitsbergen De Gruyter (via Crossref) Kaffiøyra ENVELOPE(12.002,12.002,78.627,78.627) Bulletin of Geography. Physical Geography Series 11 1 43 53 |
institution |
Open Polar |
collection |
De Gruyter (via Crossref) |
op_collection_id |
crdegruyter |
language |
English |
topic |
Geophysics Geography, Planning and Development |
spellingShingle |
Geophysics Geography, Planning and Development Sobota, Ireneusz Dziembowski, Michał Grajewski, Tomasz Weckwerth, Piotr Nowak, Marcin Greń, Katarzyna Short-term changes in thermal conditions and active layer thickness in the tundra of the Kaffiøyra region, NW Spitsbergen |
topic_facet |
Geophysics Geography, Planning and Development |
description |
Abstract This article describes and discusses the results of observations concerning short-term changes in the thermal conditions and the thickness of the active layer in a test field located in the tundra of the Kaffiøyra (NW Spitsbergen) during the summer season of 2015. One of the objectives was to find a correlation between the dynamic of the changes and the local topography. In recent years, thawing of the active layer in the Kaffiøyra region has been considerably varied in individual summer seasons. The test field area was 100 square meters, comprised 36 measurement points and was situated at approximately 3 m a.s.l. in the tundra. The measurements of the thickness and temperature of the active layer were carried out in July, August and early September of 2015. The greatest thickness of the active layer in the tundra was found near the moraine, in the area with the sharpest slope (156 cm to 212 cm). Ground temperatures were observed to follow the prevailing weather conditions with a delay, which amounted to about 24 h at a depth of 25 cm, and as much as 48 h at a depth of 75 cm. A greater thickness of the active layer was found in the western part of the test field, in the vicinity of a tidal channel, and in the eastern part of the field, bordering on the foot of the Aavatsmarkbreen’s moraine. A considerable sloping of the land, combined with increased surface runoff and infiltration at the time of precipitation, makes the water penetrating into the active layer increase its temperature. This demonstrates that the local land forms (tidal channels and terminal moraines) have a substantial influence on the extent and rate of changes which occur in the active layer. |
format |
Article in Journal/Newspaper |
author |
Sobota, Ireneusz Dziembowski, Michał Grajewski, Tomasz Weckwerth, Piotr Nowak, Marcin Greń, Katarzyna |
author_facet |
Sobota, Ireneusz Dziembowski, Michał Grajewski, Tomasz Weckwerth, Piotr Nowak, Marcin Greń, Katarzyna |
author_sort |
Sobota, Ireneusz |
title |
Short-term changes in thermal conditions and active layer thickness in the tundra of the Kaffiøyra region, NW Spitsbergen |
title_short |
Short-term changes in thermal conditions and active layer thickness in the tundra of the Kaffiøyra region, NW Spitsbergen |
title_full |
Short-term changes in thermal conditions and active layer thickness in the tundra of the Kaffiøyra region, NW Spitsbergen |
title_fullStr |
Short-term changes in thermal conditions and active layer thickness in the tundra of the Kaffiøyra region, NW Spitsbergen |
title_full_unstemmed |
Short-term changes in thermal conditions and active layer thickness in the tundra of the Kaffiøyra region, NW Spitsbergen |
title_sort |
short-term changes in thermal conditions and active layer thickness in the tundra of the kaffiøyra region, nw spitsbergen |
publisher |
Walter de Gruyter GmbH |
publishDate |
2016 |
url |
http://dx.doi.org/10.1515/bgeo-2016-0014 http://content.sciendo.com/view/journals/bgeo/11/1/article-p43.xml https://www.sciendo.com/article/10.1515/bgeo-2016-0014 |
long_lat |
ENVELOPE(12.002,12.002,78.627,78.627) |
geographic |
Kaffiøyra |
geographic_facet |
Kaffiøyra |
genre |
Tundra Spitsbergen |
genre_facet |
Tundra Spitsbergen |
op_source |
Bulletin of Geography. Physical Geography Series volume 11, issue 1, page 43-53 ISSN 2300-8490 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/4.0 |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1515/bgeo-2016-0014 |
container_title |
Bulletin of Geography. Physical Geography Series |
container_volume |
11 |
container_issue |
1 |
container_start_page |
43 |
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53 |
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