Figure 2
From: Response of Near-Inertial Shear to Wind Stress Curl and Sea Level

Observed velocities, total shears, and their upward and downward energy propagating components. Time-depth variations of (a) zonal and (b) meridional velocities (U and V), (c) zonal and (d) meridional total shears (Su and Sv), and (e) downward and (f) upward energy propagating components (Sudown and Suup) of Su from 1 October 2016 to 10 November 2016. Separation of (e) and (f) are accomplished via 2D Fourier filtering (Methods). Figures are plotted using MATLAB R2015b (http://www.mathworks.com/).