CGRG Bibliography of Canadian Geomorphology
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Author : Dery, S.J.; Hernández-Henríquez, M.A.; Mlynowski, T.J.; Burford, J.E.; and Wood, E.F.
Date : 2009.
Title : Observational evidence of an intensifying hydrological cycle in Northern Canada.
Publication : Eos Transactions AGU. 2009 Joint Assembly. The Meeting of the Americas. May 24-27, 2009. Toronto, Ontario, Canada.
Issue : 90(22), Joint Assembly Supplement.
Page(s) : Abstract CG12A-02.
Abstract
This talk will present an overview of recent trends and variability of river discharge in northern Canada, with a focus on our contributions to the IPY project "Arctic Freshwater Systems". We will first introduce the pan-Arctic domain, with a focus on northern Canada, and its hydroclimatology. Trends and variability in the 1964-2007 annual streamflow for 45 rivers spanning 5.2 × 106 km2 of northern Canada will then be discussed. We will present a trend analysis for the 44-year period that reveals a modest increase in the annual flows, with a recent trend reversal owing to much-above average values recorded over the past decade. Trends in the coefficient of variation computed from 11-year moving windows of annual streamflows exhibit spatially coherent signals with increasing variability across most of northern Canada, excluding some rivers with outlets to the Labrador Sea and eastern James Bay. This study therefore provides observational evidence of an intensifying hydrological cycle in northern Canada.
Bibliography of Canadian Geomorphology