Minimum, maximum and mean annual ground temperatures in permafrost around Abisko ANS between 2008-2009
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| Format: | Dataset Open Access |
| Sprache: | en |
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PANGAEA
2011
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| _version_ | 1867167670111043584 |
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| 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 |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | 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 | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_811722 |
| institution | PANGAEA |
| language | en |
| publishDate | 2011 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Minimum, maximum and mean annual ground temperatures in permafrost around Abisko ANS between 2008-2009 Johansson, Margareta Åkerman, Jonas Keuper, Frida Christensen, Torben R Lantuit, Hugues Callaghan, Terry V International Polar Year (2007-2008); IPY 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. |
| title | Minimum, maximum and mean annual ground temperatures in permafrost around Abisko ANS between 2008-2009 |
| topic | International Polar Year (2007-2008); IPY |
| url | https://doi.org/10.1594/PANGAEA.811722 |