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TitleUsing remote sensing-based spatial modelling to assess the changes of permafrost in Wapusk National Park
AuthorZhang, Y; Li, J; Wang, X; Chen, W; Sladen, W; Dyke, L; Dredge, L; Poitevin, J; McLennan, D; Stewart, H; Kowalchuk, S; Wu, W; Kershaw, G P; Brook, R K
SourceGeo2010, proceedings of the 63rd Annual Canadian Geotechnical Conference and the 6th Canadian Permafrost Conference; 2010 p. 1291-1297
Year2010
Alt SeriesEarth Sciences Sector, Contribution Series 20100282
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
ProvinceManitoba
NTS54F/01
AreaWapusk National Park
Lat/Long WENS-92.5000 -92.0000 57.2500 57.0000
Subjectssurficial geology/geomorphology; soils science; permafrost; freezing ground; ground ice; ground temperatures; ecology; ecosystems; climatic fluctuations; climate; climate effects; terrain sensitivity; terrain analysis; soil samples; soil studies
Illustrationsimages; plots; histograms
ProgramClimate Change Impacts and Adaptation for Key Economic and Natural Environment Sectors, Climate Change Geoscience
AbstractEach Canadian national park is required to monitor and report on the state of the park. Permafrost is an integral part of the northern landscapes and ecosystems. Observations show that permafrost is thawing in response to climate change. Northern national parks are large and expensive to access and monitor in the field. This study reports on the application of remote sensing-based spatial modelling to assess the changes of permafrost in Wapusk National Park located in the northwest of the Hudson Bay Lowlands. Permafrost was mapped at an unprecedented high resolution of 30 m by 30 m using a process-based model. Spatial input datasets were developed based on remote sensing data and site observations. The results show that the active-layer had a deepening trend throughout most of the park and that permafrost was degrading in areas in recent decades, especially in treed areas in southern regions.
GEOSCAN ID287197