Past and Present Permafrost Temperatures in the Abisko Area: Redrilling of Boreholes

被引：43

作者：

Johansson, Margareta ^{[1
,2
]}

Akerman, Jonas ^{[1
]}

Keuper, Frida ^{[3
]}

Christensen, Torben R. ^{[1
]}

Lantuit, Hugues ^{[4
]}

Callaghan, Terry V. ^{[2
,5
]}

机构：

[1] Lund Univ, Div Phys Geog & Ecosyst Anal, Dept Earth & Ecosyst Sci, S-22362 Lund, Sweden

[2] Royal Swedish Acad Sci, S-10405 Stockholm, Sweden

[3] Vrije Univ Amsterdam, Dept Syst Ecol, NL-1081 HV Amsterdam, Netherlands

[4] AWI Potsdam, Periglacial Sect, D-14473 Potsdam, Germany

[5] Univ Sheffield, Dept Plant & Anim Sci, Sheffield Ctr Arctic Ecol, Sheffield S10 5BR, S Yorkshire, England

来源：

AMBIO | 2011年 / 40卷 / 06期

基金：

瑞典研究理事会;

关键词：

Ground temperatures; Boreholes; Permafrost; Abisko; Sub-arctic Sweden; THERMAL STATE; VEGETATION;

D O I：

10.1007/s13280-011-0163-3

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

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 degrees C, ranging from -0.16 to -0.47 degrees C at 5 m depth. Data from the boreholes show increasing ground temperatures in the upper and lower part by 0.4 to 1 degrees 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.

引用

页码：558 / 565

页数：8

共 24 条

[1] Thawing permafrost and thicker active layers in sub-arctic Sweden [J].

Akerman, H. Jonas ;

Johansson, Margareta .

PERMAFROST AND PERIGLACIAL PROCESSES, 2008, 19 (03) :279-292

[2]

Beilman D. W., 2003, P PERM 8 INT C, V1, P61

[3] Report from the International Permafrost Association:: State of permafrost in the first decade of the 21st century [J].

Brown, Jerry ;

Romanovsky, Vladimir E. .

PERMAFROST AND PERIGLACIAL PROCESSES, 2008, 19 (02) :255-260

[4] A new climate era in the sub-Arctic: Accelerating climate changes and multiple impacts [J].

Callaghan, Terry V. ;

Bergholm, Fredrik ;

Christensen, Torben R. ;

Jonasson, Christer ;

Kokfelt, Ulla ;

Johansson, Margareta .

GEOPHYSICAL RESEARCH LETTERS, 2010, 37

[5] Thawing sub-arctic permafrost:: Effects on vegetation and methane emissions -: art. no. L04501 [J].

Christensen, TR ;

Johansson, TR ;

Åkerman, HJ ;

Mastepanov, M ;

Malmer, N ;

Friborg, T ;

Crill, P ;

Svensson, BH .

GEOPHYSICAL RESEARCH LETTERS, 2004, 31 (04) :L045011-4

[6] The Thermal State of Permafrost in the Nordic Area during the International Polar Year 2007-2009 [J].

Christiansen, H. H. ;

Etzelmuller, B. ;

Isaksen, K. ;

Juliussen, H. ;

Farbrot, H. ;

Humlum, O. ;

Johansson, M. ;

Ingeman-Nielsen, T. ;

Kristensen, L. ;

Hjort, J. ;

Holmlund, P. ;

Sannel, A. B. K. ;

Sigsgaard, C. ;

Akerman, H. J. ;

Foged, N. ;

Blikra, L. H. ;

Pernosky, M. A. ;

Odegard, R. S. .

PERMAFROST AND PERIGLACIAL PROCESSES, 2010, 21 (02) :156-181

[7] Geophysical characteristics of permafrost in the Abisko area, northern Sweden [J].

Dobinski, Wojciech .

POLISH POLAR RESEARCH, 2010, 31 (02) :141-158

[8] Recent warming of mountain permafrost in Svalbard and Scandinavia [J].

Isaksen, Ketil ;

Sollid, Johan Ludvig ;

Holmlund, Per ;

Harris, Charles .

JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE, 2007, 112 (F2)

[9]

JECKEL P. P, 1988, PERMAFROST, V1, P170

[10]

JOHANSSON M, 2008, 9 INT C PERM P I N E, V1, P851

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