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TitleClimate change, permafrost degradation, and infrastructure adaptation: preliminary results from a pilot community case study in the Mackenzie valley
AuthorCouture, R; Robinson, S D; Burgess, M M
SourceGeological Survey of Canada, Current Research (Online) no. 2000-B2, 2000, 9 pages, (Open Access)
PublisherNatural Resources Canada
Mediaon-line; digital; CD-ROM
RelatedThis publication is contained in Geological Survey of Canada; (2000). Current Research 2000, Geological Survey of Canada, Current Research (Online) no. 2000-ABCDE
File formatpdf
ProvinceNorthwest Territories
AreaNorman Wells
Lat/Long WENS-127.0000 -126.5000 65.5000 65.2500
Lat/Long WENS-126.5000 -126.5000 65.5000 65.2500
Subjectsenvironmental geology; Nature and Environment; permafrost; environmental studies; environmental impacts; boreholes; ground temperatures; conductivity; building codes; climate change; Quaternary
Illustrationssketch maps; photographs
Released2000 01 01
AbstractRegional studies show that permafrost will disappear partly or completely over large areas of the north should predicted climate change occur. Much of the infrastructure in northern communities relies on the properties of frozen materials for stability. Ground warming could degrade the performance of existing structures. The Geological Survey of Canada is initiating an assessment of infrastructure needs in the north, by examining sensitivity to impacts of permafrost degradation under climate warming, using a community-level approach in the Mackenzie valley. Over the last century, this area has undergone the most warming in Canada and mean annual air temperatures are predicted increase up to 4° or 5°C in the next century. Preliminary results are presented of the pilot study at Norman Wells, Northwest Territories, where surficial geology, permafrost, and geotechnical conditions are described, and performance and sensitivity of infrastructure are examined.