Past and Present Permafrost Temperatures in the Abisko Area: Redrilling of Boreholes
Monitoring of permafrost has been ongoing since 1978 in the Abisko area, northernmost Sweden, when measurements of active layer thickness started. In 1980, boreholes were drilled in three mires in the area to record permafrost temperatures. Recordings were made twice per year, and the last data were...
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ftpubmed:oai:pubmedcentral.nih.gov:3357866 2023-05-15T12:59:17+02:00 Past and Present Permafrost Temperatures in the Abisko Area: Redrilling of Boreholes Johansson, Margareta Åkerman, Jonas Keuper, Frida Christensen, Torben R. Lantuit, Hugues Callaghan, Terry V. 2011-08-24 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3357866 http://www.ncbi.nlm.nih.gov/pubmed/21954719 https://doi.org/10.1007/s13280-011-0163-3 en eng Springer Netherlands http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3357866 http://www.ncbi.nlm.nih.gov/pubmed/21954719 http://dx.doi.org/10.1007/s13280-011-0163-3 © Royal Swedish Academy of Sciences 2011 Article Text 2011 ftpubmed https://doi.org/10.1007/s13280-011-0163-3 2013-09-04T07:36:26Z Monitoring of permafrost has been ongoing since 1978 in the Abisko area, northernmost Sweden, when measurements of active layer thickness started. In 1980, boreholes were drilled in three mires in the area to record permafrost temperatures. Recordings were made twice per year, and the last data were obtained in 2002. During the International Polar Year (2007–2008), new boreholes were drilled within the ‘Back to the Future’ (BTF) and ‘Thermal State of Permafrost’ (TSP) projects that enabled year-round temperature monitoring. Mean annual ground temperatures (MAGT) in the mires are close to 0°C, ranging from −0.16 to −0.47°C at 5 m depth. Data from the boreholes show increasing ground temperatures in the upper and lower part by 0.4 to 1°C between 1980 and 2002. At one mire, permafrost thickness has decreased from 15 m in 1980 to ca. 9 m in 2009, with an accelerating thawing trend during the last decade. Text Abisko Active layer thickness International Polar Year permafrost PubMed Central (PMC) Abisko ENVELOPE(18.829,18.829,68.349,68.349) AMBIO 40 6 558 565 |
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Article Johansson, Margareta Åkerman, Jonas Keuper, Frida Christensen, Torben R. Lantuit, Hugues Callaghan, Terry V. Past and Present Permafrost Temperatures in the Abisko Area: Redrilling of Boreholes |
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description |
Monitoring of permafrost has been ongoing since 1978 in the Abisko area, northernmost Sweden, when measurements of active layer thickness started. In 1980, boreholes were drilled in three mires in the area to record permafrost temperatures. Recordings were made twice per year, and the last data were obtained in 2002. During the International Polar Year (2007–2008), new boreholes were drilled within the ‘Back to the Future’ (BTF) and ‘Thermal State of Permafrost’ (TSP) projects that enabled year-round temperature monitoring. Mean annual ground temperatures (MAGT) in the mires are close to 0°C, ranging from −0.16 to −0.47°C at 5 m depth. Data from the boreholes show increasing ground temperatures in the upper and lower part by 0.4 to 1°C between 1980 and 2002. At one mire, permafrost thickness has decreased from 15 m in 1980 to ca. 9 m in 2009, with an accelerating thawing trend during the last decade. |
format |
Text |
author |
Johansson, Margareta Åkerman, Jonas Keuper, Frida Christensen, Torben R. Lantuit, Hugues Callaghan, Terry V. |
author_facet |
Johansson, Margareta Åkerman, Jonas Keuper, Frida Christensen, Torben R. Lantuit, Hugues Callaghan, Terry V. |
author_sort |
Johansson, Margareta |
title |
Past and Present Permafrost Temperatures in the Abisko Area: Redrilling of Boreholes |
title_short |
Past and Present Permafrost Temperatures in the Abisko Area: Redrilling of Boreholes |
title_full |
Past and Present Permafrost Temperatures in the Abisko Area: Redrilling of Boreholes |
title_fullStr |
Past and Present Permafrost Temperatures in the Abisko Area: Redrilling of Boreholes |
title_full_unstemmed |
Past and Present Permafrost Temperatures in the Abisko Area: Redrilling of Boreholes |
title_sort |
past and present permafrost temperatures in the abisko area: redrilling of boreholes |
publisher |
Springer Netherlands |
publishDate |
2011 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3357866 http://www.ncbi.nlm.nih.gov/pubmed/21954719 https://doi.org/10.1007/s13280-011-0163-3 |
long_lat |
ENVELOPE(18.829,18.829,68.349,68.349) |
geographic |
Abisko |
geographic_facet |
Abisko |
genre |
Abisko Active layer thickness International Polar Year permafrost |
genre_facet |
Abisko Active layer thickness International Polar Year permafrost |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3357866 http://www.ncbi.nlm.nih.gov/pubmed/21954719 http://dx.doi.org/10.1007/s13280-011-0163-3 |
op_rights |
© Royal Swedish Academy of Sciences 2011 |
op_doi |
https://doi.org/10.1007/s13280-011-0163-3 |
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AMBIO |
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40 |
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565 |
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