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Watershed-scale controls on snow distribution in a montane watershed

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dc.contributor.advisor Boon, Sarah
dc.contributor.author Dixon, James David Neil
dc.contributor.author University of Lethbridge. Faculty of Arts and Science
dc.date.accessioned 2012-06-01T22:42:56Z
dc.date.available 2012-06-01T22:42:56Z
dc.date.issued 2011
dc.identifier.uri http://hdl.handle.net/10133/3080
dc.description xiii, 171 leaves ; 29 cm en_US
dc.description.abstract Snow accumulation in mountain headwater basins is vitally important to southern Alberta, where snowmelt supplies more than 80% of annual downstream runoff. This study evaluated two snow measurement techniques, and snow accumulation in southwestern Alberta. The SnowHydro sampler was compared with existing designs and observed to perform better under the forest canopy. A total station was evaluated for remotely measuring snow depth in avalanche terrain, but found to have accuracy limitations in low snow accumulation conditions. Field data were combined with indices of snow accumulation drivers to run classification and regression tree analysis (C&RT). Results quantified controls on accumulation over two years, and created spatial distributions of snow water equivalent across the watershed. Elevation was the dominant control between years, while canopy closure, slope angle, and aspect varied in importance between years and within seasons. Accurate representations of SWE suggest that C&RT could improve annual provincial water supply forecasts. en_US
dc.language.iso en_US en_US
dc.publisher Lethbridge, Alta. : University of Lethbridge, Dept. of Geography, c2011 en_US
dc.relation.ispartofseries Thesis (University of Lethbridge. Faculty of Arts and Science) en_US
dc.subject Snow -- Alberta -- Analysis en_US
dc.subject Dissertations, Academic en_US
dc.title Watershed-scale controls on snow distribution in a montane watershed en_US
dc.type Thesis en_US
dc.publisher.faculty Arts and Science en_US
dc.publisher.department Department of Geography en_US

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