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METEOROLOGICAL AND GEOLOGICAL INFLUENCES ON ICING DYNAMICS IN SUBARCTIC NORTHWEST TERRITORIES, CANADA
Session: John Ross MacKay Symposium - Permafrost III / Symposium John Ross MacKay - Pergélisol III
Peter Morse, Geological Survey of Canada, Natural Resources Canada (Canada)
Stephen Wolfe, Geological Survey of Canada, Natural Resources Canada (Canada)
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 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.
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