极地研究

极地研究 ›› 2001, Vol. 12 ›› Issue (1-English): 39-47.

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A climatic variation observed in permafrost temperature at Kangiqsualujjuaq in northern Quebec

 Lai Yuanming1, Wu Ziwang1, Zhu Yuanlin1 and Michel Allard2   

  1. 1 State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China;
    2 Northern Study Center, Laval University, Sainte-Foy, Quebec GIK 7P4, Canada
  • 出版日期:1951-03-30 发布日期:1951-03-30
  • 通讯作者: Lai Yuanming

A climatic variation observed in permafrost temperature at Kangiqsualujjuaq in northern Quebec

 Lai Yuanming1, Wu Ziwang1, Zhu Yuanlin1 and Michel Allard2   

  1. 1 State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China;
    2 Northern Study Center, Laval University, Sainte-Foy, Quebec GIK 7P4, Canada
  • Online:1951-03-30 Published:1951-03-30
  • Contact: Lai Yuanming

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摘要：

Permafrost temperatures from the surface down to about 9 m from 3 boreholes distributed around Kangiqsualujjuaq village on the coast of Hudson Strait were recorded and analyzed for the period 1989-1998. The results indicate that the permafrost is getting warm along the southern shore of Hudson Strait from 1993 to 1998 though it became cooling for the past 40 a or more. The observed trend in the order of 0.098℃/a at the 9 m depth is consistent with the long-term regional warming observed in air temperatures. It also coincides with that all the global circulation models predict an enhanced warming in polar regions associated with the increase in concentration of greenhouse gases in the atmosphere.

关键词: climatic variation, permafrost temperature, northern Quebee

Abstract:

Permafrost temperatures from the surface down to about 9 m from 3 boreholes distributed around Kangiqsualujjuaq village on the coast of Hudson Strait were recorded and analyzed for the period 1989-1998. The results indicate that the permafrost is getting warm along the southern shore of Hudson Strait from 1993 to 1998 though it became cooling for the past 40 a or more. The observed trend in the order of 0.098℃/a at the 9 m depth is consistent with the long-term regional warming observed in air temperatures. It also coincides with that all the global circulation models predict an enhanced warming in polar regions associated with the increase in concentration of greenhouse gases in the atmosphere.

Key words: climatic variation, permafrost temperature, northern Quebee