Cascade of energy
From AMS Glossary
cascade of energy
In the atmospheric boundary layer, turbulence is usually produced at scales roughly equal to the boundary layer depth (order of 1 km) by buoyancy or wind shear, and is dissipated by viscosity into heat at the smallest scales (order of 1 mm). Richardson's (1922) poem eloquently describes this cascade: Big whorls have little whorls, which feed on their velocity / And little whorls have lesser whorls, and so on to viscosity.
Richardson, L. F. 1922. Weather Prediction by Numerical Process.