Fig. 6
From: Deep-ocean mixing driven by small-scale internal tides

Two-dimensional histogram and scatter plot of observed energy dissipation vs. estimate of tidal energy dissipation. The x-axis is the theoretical estimate of energy dissipation (\(E_{{\mathrm{all}}}^{4 - \infty }\)) and the y-axis is the observed energy dissipation (εz). The two-dimensional histogram (colours) is based on the rate of energy dissipation computed from a finescale parameterisation9 applied to vertical profiles of density and velocity located along the black lines shown in the map. The scatter plot is based on the rate of energy dissipation computed from microstructure profiles8 at stations shown in the top map. Data points for which energy conversion is less than 5 × 10−4 W m−2 were excluded in microstructure data and are shadowed in grey. Regions where mean kinetic energy or mesoscale eddy kinetic energy is higher than 200 cm2 s−2 are shown in green in the top map, and were excluded from the histogram and scatter plot. Regions where energy conversion exceeds 5 × 10−4 W m−2 are shown in red in the top map. The dashed line is a linear regression on logged microstructure data