Daily evaporation from a small lake in the continental Low Arctic of Canada was examined using three independent experimental methods and a simplified combination model. Mean daily lake evaporation (± variability between methods) was estimated to be 3.2+0.3−0.3 mm d−1 and 2.5+0.6−0.3 mmd−1 over fifty-day periods during two consecutive summers. Based on these results and additional class-A pan data, total thaw-season evaporation estimates of 220 mm to 320 mm were obtained, equivalent to 70% to 100% of annual precipitation. These values are 15 to 70% higher than predicted by standard evaporation maps of Canada. Our results indicate that the Priestley-Taylor model provides a good approximation of the Bowen ratio energy balance model in this setting. As expected, estimates based on mass balance are highly sensitive to uncertainty in measurement of lake inflow and outflow.
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Research Article|
February 01 1996
Evaporation from a Small Lake in the Continental Arctic using Multiple Methods: Paper presented at the 10th Northern Res. Basin Symposium (Svalbard, Norway – 28 Aug./3. Sept. 1994)
J. J. Gibson;
J. J. Gibson
*
University of Waterloo, Ont.N2L 3G1, Canada
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T.D. Prowse;
T.D. Prowse
**
Environment Canada, Saskatoon, Sask. S7N 3H5, Canada
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T. W. D. Edwards
T. W. D. Edwards
*
University of Waterloo, Ont.N2L 3G1, Canada
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Hydrology Research (1996) 27 (1-2): 1–24.
Article history
Received:
April 01 1995
Revision Received:
October 01 1995
Accepted:
November 27 1995
Citation
J. J. Gibson, T.D. Prowse, T. W. D. Edwards; Evaporation from a Small Lake in the Continental Arctic using Multiple Methods: Paper presented at the 10th Northern Res. Basin Symposium (Svalbard, Norway – 28 Aug./3. Sept. 1994). Hydrology Research 1 February 1996; 27 (1-2): 1–24. doi: https://doi.org/10.2166/nh.1996.0016
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