Hybrid Profiler Mooring Recovered, Ready for Another Year of Ocean Observations

By amber.coogan | July 25, 2025

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 pass nearby, the HYPM transfers this data acoustically. The gliders then surface periodically and transmit the data back to shore via satellite.

Following recovery, the HYPM will be rebuilt on board the vessel and prepared for redeployment. Once back in the water, it will continue its year-round mission of delivering critical ocean data to support research, monitoring, and understanding of the North Atlantic.