Figure 4
Rotary frequency spectra for the observed horizontal current along vertical axis (Aug. 24–Oct. 31, 2019): (a) clockwise (CW) and (b) counterclockwise (CCW). Key frequencies are indicated by vertical bars: f and 2f (black solid); 0.8f, 0.9f, 1.1f and 1.2f (black dashed); tidal constituents of K1 and M2 (white solid). Hatched region shows an approximate range of the main pycnocline (200–300 m depth).
