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ARTICULOS TECNICOS
Comparison of Isotopic Time-Series Partitioning Analysis with an Evaporative Enrichment Model in Lake- and Wetland-Dominated River Basins, Mackenzie Basin, Canada
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marzo
2006
N.A. St. Amouraa, J.J. Gibsonb, T.W.D. Edwardsa and T.D. Prowseb
aDepartment of Earth Sciences, University of Waterloo, Waterloo, ON, Canada
bNational Water Research Institute, Water & Climate Impacts Research Centre, Victoria, BC, Canada
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The Mackenzie Basin has been the focus of major hydrological research, as part of Canada’s contribution to the Global Energy and Water Cycle Experiment (GEWEX).
The presence of extensive wetlands and widespread permafrost make the Mackenzie system highly sensitive to climate variability and change.
The Mackenzie Basin is also a significant contributor of fresh water to the Arctic Ocean, and thus ultimately influences North Atlantic thermohaline
circulation. Studies presented here are focussed on streamflow generation in the lowerLiardRiver, one of the largest tributaries of the Mackenzie River
This poster demonstrates that the water isotope tracers, oxygen-18 and deuterium, can be coupled with hydrometeorological data to yield valuable insight
about water balance and runoff generation processes in subarctic wetland regions. The five basins in the study area are drained by meandering streams
that flow through flat to undulating terrain underlain by glacial till and lacustrine silt and clay, and containing widespread peatlands (bogs, fens),
transitional forests and small shallow lakes. Scattered aeolian sand ridges are typically unsaturated and forested with spruce and aspen vegetation,
whereas the low-lying peat areas are vegetated by black spruce, sedge, and sphagnum.
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Información de Contacto
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Persona contacto: A. Richard Heemskerk
Título: Gerente
Teléfono: 1 (519) 888-4567 Ext. 35838
Fax: 1 (519) 746-7484
Dirección: 200 University Avenue West
Ciudad: Waterloo
Estado/Provincia: Ontario
Código postal: N2L 3G1
País: Canada
rkhmskrk@uwaterloo.ca
www.uweilab.ca
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