Fig. 3
From: Self-sharpening induces jet-like structure in seafloor gravity currents

Downstream time-averaged flow velocity and excess density maps. Downstream flow velocity (a) and excess density (b) above the seafloor bedforms (shaded grey). Insets in (a) and (b), respectively, depict the depth averaged Reynolds and Froude numbers (see methods). Dotted black lines respectively highlight spatial variability in the relative buoyancy, ρf/ρ − 1 (a), and the downstream time-averaged flow velocity, u (b), where the velocity maximum is co-located with a sharp density gradient. Solid white lines depict the velocity maximum, along a contour of zero gradient, dashed white lines depict the maximum density gradient and solid black lines the integral flow depth7