Estimating ocean vertical velocities using an autonomous multipurpose profiler

A low-cost multipurpose oceanographic vertical profiler is described. Its application to the measurement of vertical currents, inspired by ocean glider flight-model methods, is presented. Preliminary results of the BioSWOT-Med campaign, carried out in April-May 2023, illustrate the instrument's ability to capture weak signals, potentially linked to sub-mesoscale oceanic structures.