Abstract
Analyses of observations from four lakes in British Columbia, Canada, compare estimates of the amplitude of thermocline deflections to predictions of wind-driven internal seiche amplitudes made using the Wedderburn number,W. The study sites range from the 750 m diameter Brenda Mines pit-lake to the 107 km long Kootenay Lake. Causal filtering of the wind data with a frequency cut-off based on the fundamental baroclinic time-scale is critical for correct calculation ofW. With the filtering incorporated, good comparison betweenW, its integral equivalent the Lake numberL N and the observations can be made. In all but the mine pit-lake, upwelling or near-upwelling conditions (W≈1) were encountered.
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Stevens, C.L., Lawrence, G.A. Estimation of wind-forced internal seiche amplitudes in lakes and reservoirs, with data from British Columbia, Canada. Aquatic Science 59, 115–134 (1997). https://doi.org/10.1007/BF02523176
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DOI: https://doi.org/10.1007/BF02523176