This image is a composite of five vorticity time series from simulations of stratified shear layers with increasing stratification. Each pixel column corresponds to a single time step from each simulation. (The image was created using a cmocean colormap, and was further edited for saturation and contrast using RawTherapee.)
The effect of stratification on Kelvin-Helmholtz instability —

This image is a composite of five vorticity time series from simulations of stratified shear layers with increasing stratification. Each pixel column corresponds to a single time step from each simulation. (The image was created using a cmocean colormap, and was further edited for saturation and contrast using RawTherapee.)

https://fluids.ac.uk/pictures/competition/5-stratification.png