The ocean is variable on a broad range of scales and for a variety of reasons. The role of mesoscale subinertial currents has been known for a long time to be an important aspect of the ocean circulation. At the other end of the spectrum superinertial motions (near-inertial waves, inertial-gravity waves) are also important to the ocean functioning. In between, subinertial turbulent processes termed “submesoscale” exist, with time and space scales that largely overlap with those of superinertial motions. Submesoscale activity results from the intensification of fronts in the upper ocean. In this manuscript I strive to describe my research contribution from 1998 to 2015 on mesoscale and submesoscale turbulence. Some of their interactions with...