The stable isotope composition of water and major-ion concentrations were measured in a small catchment tributary to Manners Creek, situated in the zone of discontinuous permafrost near Fort Simpson, Northwest Territories. Hydrograph separation calculations based on δ18O and δ2 H values of snow, active-layer water, and streamflow reveal that snowmelt contributions were secondary to active-layer storage contributions throughout the spring freshet period of 1990. At the time of peak spring runoff an estimated 40 to 50 % of streamflow was contributed by snowmelt, while over the entire spring period only 25 to 30 % of streamflow was contributed by snowmelt. Overland and pipe flow are shown to be important mechanisms of rapid snowmelt runoff from permafrost slopes.
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Research Article|
April 01 1993
Runoff Generation in a High Boreal Wetland in Northern Canada: Paper presented at the 9th Northern Res. Basin Symposium/Workshop (Whitehorse/Dawson/Inuvik, Canada - August 1992)
J. J. Gibson;
J. J. Gibson
University of Waterloo, Ont., N2L 3G1 Canada
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T. W. D. Edwards;
T. W. D. Edwards
University of Waterloo, Ont., N2L 3G1 Canada
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T. D. Prowse
T. D. Prowse
National Hydrology Research Institute, Saskatoon, S7N 3H5 Canada
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Hydrology Research (1993) 24 (2-3): 213–224.
Article history
Received:
September 22 1992
Revision Received:
February 04 1993
Accepted:
February 12 1993
Citation
J. J. Gibson, T. W. D. Edwards, T. D. Prowse; Runoff Generation in a High Boreal Wetland in Northern Canada: Paper presented at the 9th Northern Res. Basin Symposium/Workshop (Whitehorse/Dawson/Inuvik, Canada - August 1992). Hydrology Research 1 April 1993; 24 (2-3): 213–224. doi: https://doi.org/10.2166/nh.1993.0023
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J. J. Gibson, T. W. D. Edwards, T. D. Prowse; Runoff Generation in a High Boreal Wetland in Northern Canada: Paper presented at the 9th Northern Res. Basin Symposium/Workshop (Whitehorse/Dawson/Inuvik, Canada - August 1992). Hydrology Research 1 April 1993; 24 (2-3): 213–224. doi: https://doi.org/10.2166/nh.1993.0023
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