CGRG Bibliography of Canadian Geomorphology
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Author : Beall, F.; Krezek, C.; and Creed, I.
Date : 2007.
Title : Influence of basin scale, morphology and physiography on flow regime within the Batchawana River watershed.
Publication : CMOS, CGU, AMS Congress 2007. "Air, Ocean, Earth and Ice on the Rock". May 28 - June 1, 2007. St. John's Congress Centre, Newfoundland and Labrador, Canada.
Issue :
Page(s) : H01-1D4.1.
Abstract
The distribution of gauges on natural streams throughout Canada is limited in many regions, particularly in Northern areas, and is generally confined to larger basins. Simple methods to predict flows at ungauged catchments are needed for numerous water resource applications. One potential method employs Flow Duration Curves (FDCs) to describe the regional hydrological regime. To improve our confidence in these methodologies and to develop metrics for the comparison of basins, the sensitivity of FDC’s to different watershed characteristics is needed. Within the Batchawana River watershed, draining into the eastern end of Lake Superior, a hierarchy of gauges has been monitored since 2003, ranging from 1st to 6th order in scale. A natural biogeoclimatic gradient separates the watershed into different physiographic regions. Due to the proximity to Lake Superior and local orographic effects in areas of high relief, precipitation varies approximately 200 mm across the watershed. The southern portion is within the Great Lakes – St. Lawrence Forest region and the northern portion is part of the Boreal Forest region. The watershed contains numerous lakes and wetlands providing morphological variability in the gauged basins. These characteristics make the Batchawana an ideal watershed to test the sensitivity of metrics derived from FDCs on: 1) basin scale, 2) climate and physiographic setting, and 3) basin morphology. We will present the results of this analysis and discuss the utility of this approach.
Bibliography of Canadian Geomorphology