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TitleMeteorological and geological influences on icing dynamics in subarctic Northwest Territories, Canada
AuthorMorse, P D; Wolfe, S A
SourceProceedings of GeoQuébec 2015, 68th Canadian Geotechnical Conference and 7th Canadian Permafrost Conference; 2015 p. 1-8
Year2015
Alt SeriesEarth Sciences Sector, Contribution Series 20150062
PublisherCanadian Geotechnical Society
MeetingGeoQuébec 2015, 68th Canadian Geotechnical Conference and 7th Canadian Permafrost Conference; Quebec City; CA; September 20-23, 2015
Documentbook
Lang.English
Mediapaper; on-line; digital
File formatpdf
ProvinceNorthwest Territories
NTS85J/10; 85J/15
Subjectssurficial geology/geomorphology; ice movement; ice; ice flow; ice conditions; permafrost; precipitation; meteorology; Great Slave Upland Low Subarctic; icing; aufeis
Illustrationslocation maps; satellite images; histograms; plots
ProgramLand-based Infrastructure, Climate Change Geoscience
LinksOnline - En ligne
AbstractIn this study, we test the significance of identified meteorological forcing variables against a long-term dataset of icing dynamics and distribution developed for the Yellowknife region, Northwest Territories. Overall, 28% of icing density interannual variation is explained by winter warming periods (>5°C) and autumn rainfall. Interannual icing density variation and significant meteorological forcing variables differ among ecoregions where varied geological permafrost conditions influence the hydrological regime.
Summary(Plain Language Summary, not published)
In this study, we test the significance of identified meteorological forcing variables against a long-term dataset of icing dynamics and distribution developed for the Yellowknife region, Northwest Territories. Overall, 28% of icing density interannual variation is explained by winter warm waves (>=5°C) and autumn rainfall. Interannual icing density variation and significant meteorological forcing variables differ among ecoregions where varied geological permafrost conditions influence the hydrological regime.
GEOSCAN ID296499