Post by Ocean Science Technology

"Cameras don't work here. Optics will not work." That's how one engineer summed up trying to run search and recovery missions in India's flood-prone rivers, where sediment and current cut visibility down to ten centimetres. Banergy's answer was Cerulean Sonar: a capsized trawler located on the riverbed before divers even entered the water, a lost sonar system recovered in four and a half hours after officials estimated the job would take three days. Multi-day dive operations in near-zero visibility now often wrap in hours. Off the coast of France, CNRS and ALSEAMAR just launched a different kind of ocean mission: 10 SEAEXPLORER autonomous gliders, deployed into the Ligurian Sea for a month-long, fully coordinated survey split between acoustic and biogeochemical sampling. The aim is to map how fine-scale ocean structures drive zooplankton distribution and nutrient transport, detail that's nearly impossible to capture with traditional methods. This week's issue also covers a new AUV diving to 6,000 metres on its first deep-sea mapping expedition, a dockside manufacturing setup getting submarine parts into sailors' hands fast, and a rundown of upcoming maritime industry events. Read the full OST Newsletter for the details ⬇️ and more stories from: Norwegian Offshore Directorate, KONGSBERG, Cetasol, and QinetiQ