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TitleObserved recent changes in climate and permafrost temperatures at four sites in northern Canada
AuthorThroop, J; Smith, S L; Lewkowicz, A G
SourceGeo2010, proceedings of the 63rd Annual Canadian Geotechnical Conference and the 6th Canadian Permafrost Conference; 2010 p. 1265-1272
Year2010
Alt SeriesEarth Sciences Sector, Contribution Series 20100069
Meeting63rd Canadian Geotechnical Conference and the 6th Canadian Permafrost Conference; Calgary; CA; September 12-16, 2010
Documentbook
Lang.English
Mediapaper
RelatedThis publication is contained in Wang, X; Zhang, Y; Fraser, R; Chen, W; (2010). Evaluating the major controls on permafrost distribution in Ivvavik National Park based on process-based modelling; Evaluating the major controls on permafrost distribution in Ivvavik National Park based on process-based modelling; Evaluating the major controls on permafrost distribution in Ivvavik National Park based on process-based modelling; Evaluating the major controls on permafrost distribution in Ivvavik National Park based on process-based modelling, Geo2010, proceedings of the 63rd Annual Canadian Geotechnical Conference and the 6th Canadian Permafrost Conference
ProvinceNorthwest Territories; Nunavut
NTS25N/10; 66A/08; 95H/14; 95O/11
AreaTable Mountain; Fort Simpson; Baker Lake; Iqaluit
Lat/Long WENS-69.0000 -68.5000 63.7500 63.5000
Lat/Long WENS-96.5000 -96.0000 64.5000 64.2500
Lat/Long WENS-120.5000 -120.5000 63.0000 62.7500
Lat/Long WENS-123.5000 -123.0000 63.7500 63.5000
Subjectssurficial geology/geomorphology; environmental geology; permafrost; freezing ground; ground ice; ground temperatures; climate, arctic; terrain sensitivity; climate change
Illustrationslocation maps; plots
ProgramEarth Science for National Scale Characterization of Climate Change Impacts on Canada's Landmass, Climate Change Geoscience
AbstractClimate and ground temperature records 10 to 30 years in length from four widely separated permafrost monitoring sites were analyzed to assess the thermal response to recent climate warming, both seasonally and annually. The study sites are located in the tundra environments of Nunavut and the boreal forest of the Mackenzie Valley Northwest Territories. The timing and magnitude of the climate change varied regionally, and the response of the ground varied even more due to individual site conditions. Increases in winter air temperatures were significant and appear to be largely responsible for recent increases in ground temperature.
GEOSCAN ID285482