CGRG Bibliography of Canadian Geomorphology
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Author : Gibson, J.; Birks, J.; and Tattrie, K.
Date : 2007.
Title : Interannual variability in lake and wetland runoff on the Boreal Plain: an isotopic perspective of regional water budget dynamics.
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) : H02-2B4 .5.
Abstract
A stable isotope mass balance technique for estimating water yield is applied to a 5-year isotopic time-series from fifty lakes in hydrologically complex, wetland-rich terrain of northeastern Alberta. The dataset, gathered as part of CEMA-sponsored research in the oil sands region, is designed to improve baseline understanding of hydrologic response at undisturbed sites in the area, as well as to constrain water yield estimates to lakes as part of a dynamic critical loadings assessment. The approach uses readily obtainable physical and climatological data combined with analysis of evaporative isotopic enrichment of deuterium and oxygen-18 in lake water as a quantitative tracer of throughflow, lake residency and runoff. The results illustrate practical limitations of working in ungauged basins, but also provide an indication of added value to be gained by incorporating such site-specific measurements within water quality networks. Implications for the role of lakes and wetlands in the regional runoff are discussed.
Bibliography of Canadian Geomorphology