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TitleGround thermal data collection along the Alaska Highway corridor (KP1559-1895), Yukon, summer 2015
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AuthorSmith, S L; Ednie, M; Chartrand, J
SourceGeological Survey of Canada, Open File 8000, 2016, 31 pages, https://doi.org/10.4095/298769
Year2016
PublisherNatural Resources Canada
Documentopen file
Lang.English
Mediadigital; on-line
RelatedThis publication is related to the following publications
File formatpdf
ProvinceYukon
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 Corridor
Lat/Long WENS-141.0000 -134.0000 62.7500 60.7500
Subjectssurficial geology/geomorphology; engineering geology; freezing ground; ground ice; ground temperatures; permafrost; thermal analyses; Cenozoic; Quaternary
Illustrationslocation maps; graphs; histograms; tables
Viewing
Location
 
Natural Resources Canada Library - Ottawa (Earth Sciences)
 
ProgramRisk Analysis, Climate Change Geoscience
Released2016 01 01; 2016 05 18
AbstractGround 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.
Summary(Plain Language Summary, not published)
In July 2013, eight boreholes on the Alaska Highway easement between Haines Junction and the Alaska border were instrumented to measure ground temperatures 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, in summer 2015 provided a 2-year record of ground temperatures. Although permafrost in this section of the corridor is generally warmer than -1°C, permafrost as cold as -3°C was found near the Alaska border.
GEOSCAN ID298769