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TitleGround thermal data collection along the Alaska Highway corridor (KP1559-1895), Yukon, summer 2016
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorSmith, S LORCID logo; Roy, L -P; Lewkowicz, A G; Chartrand, JORCID logo
SourceGeological Survey of Canada, Open File 8311, 2017, 29 pages, Open Access logo Open Access
PublisherNatural Resources Canada
Documentopen file
Mediadigital; on-line
RelatedThis publication is related to the following publications
File formatpdf
NTS105D/13; 105D/14; 115A/13; 115A/14; 115A/15; 115A/16; 115B/16; 115F/15; 115F/16; 115G/01; 115G/02; 115G/05; 115G/06; 115G/07; 115G/11; 115G/12; 115G/13; 115K/02; 115K/07; 115K/10
AreaAlaska Highway; Haines Junction; Otter Falls; Burwash; Beaver Creek; Kluane Lake; Whitehorse
Lat/Long WENS-141.0000 -134.0000 62.7500 60.7500
Subjectssurficial geology/geomorphology; engineering geology; Nature and Environment; permafrost; ground ice; ground temperatures; thermal conductivity; boreholes; climate; planning; transportation; cold regions research; alluvial deposits; alluvial fans; terraces; alluvial plains; organic deposits; eolian deposits; glacial deposits; moraines; Climate change; Infrastructures; Phanerozoic; Cenozoic; Quaternary
Illustrationslocation maps; geoscientific sketch maps; time series; tables; profiles
ProgramClimate Change Geoscience Permafrost
Released2017 12 07
AbstractGround temperature data were acquired in August 2016 from 14 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 is present at some sites where surface temperatures are above 0°C and where a sufficient thermal offset exists. These new data have extended existing records so that time series for these sites are 3 to 5 years long. Although mean annual air temperatures in the corridor have increased over the last few years, there is no consistent trend in ground temperature apparent in the short records. The information obtained helps characterize regional permafrost conditions in the southern Yukon and informs climate change impact assessments and adaptation planning.
Summary(Plain Language Summary, not published)
In summer 2016, ground temperature datawere collected from 14 instrumented boreholes along the Alaska Highway corridor between Haines Junction and the Alaska border in order to improve characterization of permafrost conditions. This information is required for terrain sensitivity assessments and planning northern development (eg. pipeline, highway) to ensure infrastructure and environmental integrity. Data collected, in collaboration with the Yukon Research Centre and University of Ottawa, provided a one-year record of ground temperatures and extended existing time series. Although permafrost in this section of the corridor is generally warm (>-1°C), permafrost with temperatures as low -3°C was found near the Alaska border.

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