CGRG Bibliography of Canadian Geomorphology
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Author : Gagnon, A.; and Gough, W.A.
Date : 2001.
Title : Influence of climate variability on the river discharge of the Hudson Bay region, Canada.
Publication : The Canadian Association of Geographers/l'association Canadienne des Géographes. 2001 Annual Meeting. 50th Anniversary of the CAG Jointly Organised by McGill University, Concordia University and Université de Montréal Tuesday May 29 – Sunday June 3, 2001
Issue :
Page(s) :
Abstract
Long-term streamflow time series were analysed to provide evidence of climate change in the Hudson Bay region. We also investigated whether relationships exist between streamflow and proximal temperature and precipitation time series. The Mann-Kendall test for trend reveals an earlier occurrence of the spring peak flow in three rivers located in a region with a statistically significant warming trend in spring temperature. In northwestern Hudson Bay, precipitation has significantly increased in all seasons, resulting in increasing trends in the discharge of the Kazan river. In contrast, a decrease in river discharge was detected in central Manitoba, because of warmer temperatures and less abundant rainfall. On the east side of Hudson Bay, statistically significant streamflow trends were detected for individual months, but temporally and spatially coherent patterns could not be identified. This study uses streamflow and climate data to provide evidence of climate change in the Hudson Bay region over the past century. The change signal is not spatially uniform and is obscured when the Bay is treated as a single region.
Bibliography of Canadian Geomorphology