Figure 4: Vertical structure in the LatMix winter experiment.

(a) Kinetic energy spectrum as a function of depth. The depth of the mixed layer h=220 m is indicated by the black horizontal line. (b) Kinetic energy spectrum at a depth of 450 m. The light shadings are 95% confidence intervals. Also shown is the GM model spectrum for internal waves in the thermocline (with parameters from ref. 30), an estimate of the noise level of the velocity data and reference lines with slopes −2 and −3.