It’s a glider
Interview with Maurício Fragoso, director of Prooceano, Rio de Janeiro, August 2017
It’s like a drone, working under water. This autonomous vehicle works without human intervention, nobody beside it, no cable, nothing. Basically, it plunges into the ocean and collects data that he transmits by satellites. The idea is that you place this equipment in the ocean and receive information on land, from your office or your boat, anywhere you want. It’s a glider.