Three Dimensional Structure of Near-Inertial Waves and Their Interactions with Mesoscale Structures from Direct Observations
The three dimensional structure of near-inertial waves was measured by compact arrays of EM-APEX floats, Wave Gliders, surface Drifters, Slocum gliders, Spray gliders, Seagliders, and a Wirewalker, augmented by intensive ship-based synoptic surveys using the Triaxus, which is a towed undulating profiler. These arrays resolved horizontal scales of the inertial motions of as small as 1 km for several inertial periods at the same time as resolving the mesoscale context and its evolution. In this presentation we contrast the horizontal and vertical wavenumbers of near-inertial oscillations in a relatively quiescent region of the ocean, with that in a region of strong anticyclonic vorticity. This talk will present observations and analyses from several investigators, recognizing intellectual investment and time committed by the entire NISKINe Team.