Abstract
Abstract Previous studies of Knight Inlet, British Columbia, revealed the presence of a strong internal M2 tide. Most of the energy was found to be in either the first or second dynamic modes. Due to difficulties in sampling of the surface layer, objective estimates of the distribution of tidal energy and reflection coefficients, until now, have been impossible to obtain. During June and July 1989, an intense acoustic Doppler current profiler (ADCP) sampling of the inlet was conducted. These results are used to show the existence of a strong semidiurnal flow in the baroclinic field. The authors propose that the horizontal phase information inherent in the spatial sampling by the ADCP can be used to resolve the distribution of energy between dynamic modes. Through a least squares fit of the data to a simple free wave propagation model of the inlet, the authors arrive at objective estimates of the distribution of M2 internal tide energy. The fitting procedure is found to be sensitive to fluctuations in the ...
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