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Mapping water yield distribution across the South Athabasca Oil Sands (SAOS) area: Baseline surveys applying isotope mass balance of lakes

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dc.contributor.author Gibson, J.J.
dc.contributor.author Birks, S.J.
dc.contributor.author Moncur, M.
dc.date.accessioned 2019-01-17T18:15:17Z
dc.date.available 2019-01-17T18:15:17Z
dc.date.copyright 2019 en_US
dc.date.issued 2019
dc.identifier.citation Gibson, J.J., Birks, S.J. & Moncur, M. (2019). Mapping water yield distribution across the South Athabasca Oil Sands (SAOS) area: Baseline surveys applying isotope mass balance of lakes. Journal of Hydrology: Regional Studies, 21, 1-13. https://doi.org/10.1016/j.ejrh.2018.11.001 en_US
dc.identifier.uri https://doi.org/10.1016/j.ejrh.2018.11.001
dc.identifier.uri https://dspace.library.uvic.ca//handle/1828/10525
dc.description.abstract Study region: Surveys of stable isotopes of water in 121 lakes were conducted between 2007 and 2009 to assist in characterizing baseline hydrology of the South Athabasca Oil Sands area, Alberta, a 35,000 km2 boreal forest region with subdued relief, about 70% wetland cover, and a mosaic of lakes, rivers and buried channel networks. The region, currently under rapid development for in-situ oil sands, was close to baseline conditions at the time of survey. Study focus: Using an isotope mass balance approach, isotope data were applied to estimate water yield to lakes across the region. High-resolution maps were created to illustrate the spatial distribution of water yield and to compare observed patterns to geologic and physiographic features. New hydrological insights for the region: Site-specific differences in water yield were found in relation to geologic and physiographic features. Notably, high water yields were found in lakes underlain by Colorado shale, lower runoff was found in proximity to incised and buried channels. Consistent patterns from year-to-year reveal zones of low runoff which may be more susceptible to development-related impacts including changes in surface/groundwater interaction and pressurization or depressurization of aquifers or formations. The approach may be helpful for informing design of new monitoring programs to ensure runoff variability is considered. Periodic reassessments are recommended to capture potential development and/or climatic change impacts on the water cycle. en_US
dc.description.sponsorship Funding for this hydrological assessment was provided by InnoTech Alberta and its predecessors, in addition to Conocophillips Canada and Nexen Inc. en_US
dc.language.iso en en_US
dc.publisher Journal of Hydrology: Regional Studies en_US
dc.subject Isotopes en_US
dc.subject Lakes en_US
dc.subject Water balance en_US
dc.subject Evaporation en_US
dc.subject Runoff en_US
dc.subject Boreal en_US
dc.subject Oil sands en_US
dc.title Mapping water yield distribution across the South Athabasca Oil Sands (SAOS) area: Baseline surveys applying isotope mass balance of lakes en_US
dc.type Article en_US
dc.description.scholarlevel Faculty en_US
dc.description.reviewstatus Reviewed en_US


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