Ground thermal data collection along the Alaska Highway corridor (KP1559-1895), Yukon, summer 2015 / S.L. Smith, M. Ednie and J. Chartrand.: M183-2/8000E-PDF

"Ground temperature data were acquired in July 2015 from 13 boreholes along the northwestern section of the Alaska Highway corridor between kilometre post (KP) 1559 and KP 1895 near the Alaska border. Mean annual ground temperatures, determined at or near the zero annual amplitude depth, indicate that permafrost temperature in this section of the corridor is generally above -1°C with colder conditions near the Alaska border where permafrost can be as cold as -3°C. Temperatures measured in the upper 1-2 m indicate that permafrost exists at some sites where surface temperatures are above 0°C and where a sufficient thermal offset exists. Although mean annual air temperature in 2014-15 was higher than in 2013-14, there was no significant difference in the ground temperatures between the two years. The information obtained helps characterize regional permafrost conditions in the southern Yukon and informs climate change impact assessments and adaptation planning"--Abstract, page i.

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