Fig. 4: The simulated scale kinetic energy flux.
From: The open ocean kinetic energy cascade is strongest in late winter and spring

The scale kinetic energy flux Π computed from GIGATL1 without simulated tides in the period Apr 2008–Mar 2009 from the total velocity (a), the geostrophic velocity (b), the geostrophic velocity and subsequently averaged over 5∘ × 5∘ domains (c), and estimated with equation (1) from SSH cut from the simulation along JASON-3 tracks (d). The time-mean flux at 60 km scales is shown in (a) to (d). 15∘S and 15∘N are shown with black horizontal lines. Hatches mark regions that have been excluded for the computation of the estimation coefficient C. In (e) to (h), Hovmöller plots of the respective area-averaged flux in the North Atlantic are shown (domain marked with a black box in (a) to (d)). The scale of 60 km is marked with a black line.