Abstract
Thorpe scale analysis was performed using two sets of 25-hour-long hourly CTD data. Raw density profiles collected on the continental slope of the southwestern East Sea were post-processed to reduce instrument noises and measurement errors. Density inversions were detected by applying the overturn ratio test proposed by Gargett and Garner (2008). The value of <TEX>$K_z$</TEX> below the main thermocline estimated with the Osborn parameterization was <TEX>$5.3{\times}10^{-4}(1.1{\times}10^{-4})m^2s^{-1}$</TEX> and that with the Shih parameterization was <TEX>$5.9{\times}10^{-5}(2.4{\times}10^{-5})m^2s^{-1}$</TEX>during the spring (neap) tidal period. This result suggests that internal tides can enhance vertical mixing in the observation region.
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