Updates

The process of deploying a surface mooring is a precise operation that starts at the ocean’s surface and ends 2,700 meters below on the seafloor. Two new videos from the R/V Revelle capture key moments in this deployment process. Part 1: Buoy DeploymentThe surface buoy is towed slowly behind the ship, trailing more than 3 kilometers. This gradual release ensures the mooring line pays out properly and remains vertical in…

The Coastal and Global Scale Nodes (CGSN) team (Jim Ryder, Kris Newhall, James Kuo, Dan Bogorff, and Nikki Arm) have successfully re-deployed the Hybrid Profiler Mooring (HYPM) in the Irminger Sea. Following its recent servicing, the HYPM and its Wire-Following Profiler will resume sampling nearly 2,400 meters of the water column, providing critical oceanographic data from this key North Atlantic location. This deployment also marked the first use of a…

Following the recovery of the Hybrid Profiler Mooring (HYPM), the CGSN team conducted a full inspection of the system. All components were checked, with any old or damaged parts refurbished or replaced, before the entire mooring was rebuilt. This marks the first time the HYPM and its profiling vehicle have been serviced entirely at sea. Conducting the work on board allowed the team to complete the turnaround more efficiently. In…

The OOI Coastal and Global Scale Nodes (CGSN) team has successfully deployed the Global Surface Mooring (GSM) as part of the ongoing Irminger Sea Array operations. The GSM is equipped with a suite of meteorological, oceanographic, and biological sensors, designed to collect continuous data from the atmosphere, ocean surface, and throughout the water column. This high-resolution data supports long-term ocean monitoring and helps scientists study processes like air-sea exchange, climate…

The Coastal and Global Scale Nodes (CGSN) team has officially arrived at the Irminger Array, marking a major milestone in this year’s field season. First up on the operational checklist? Glider deployment. Two autonomous underwater gliders were successfully launched and are now running in a holding pattern near the array. These sleek, torpedo-shaped robots are already being closely monitored by our expert glider pilots, who are checking in on vehicle…

During transit to the Irminger Array, the crew of the R/V Revelle and the OOI Coastal and Global Scale Nodes (CGSN) team successfully recovered a BGC-Argo float on behalf of the UK National Oceanography Centre (UK NOC). The float, deployed in 2024, had been collecting biogeochemical profiles focused on the biological carbon pump, along with camera imagery of plankton and particles in the water column. Ahead of the cruise, the…

The OOI Coastal and Global Scale Nodes (CGSN) team recently completed the recovery of the Hybrid Profiler Mooring (HYPM) during the Irminger #12 cruise. The HYPM plays a key role in collecting and transmitting oceanographic data from the Irminger Sea. The mooring is equipped with a profiling vehicle that travels up and down the mooring wire, gathering a range of ocean measurements throughout the water column. When autonomous array gliders…

The R/V Roger Revelle departed Reykjavík on July 18 after several days of mobilization and gear loading, including reassembly and testing of the Surface and HYPM moorings. With the surface buoy secured and burn-in restarted, final checks were completed and the team got underway. Transit to the array site (July 18-20) was smooth, with calm seas. Along the way, Revelle made a brief detour to recover a drifting profiling float…