Global Surface Moorings
The Global Surface Moorings will support instruments at the air-sea interface, on the instrument frame at the end of the chain termination, and fixed instruments distributed along the mooring cable down to 1500 meters.
On the surface is a Global Surface Buoy with a tall, low-drag tower and deep keel. The tower is a monopole and provides for instrument mounting at ~4 m above the waterline. A circular crash bar below the instrument mounting area helps to prevent damage to instruments from impact. For power generation, two wind turbines are mounted on the tower, and solar panels are mounted on the vane and the buoy deck.
The Global Surface Mooring is a low-scope, inverse catenary style mooring consisting of the surface buoy, universal joint, 10-m electro-mechanical (EM) chain section, instrument frame, approximately 1500 m of wire rope, a plaited nylon section, a buoyant polypropylene section, glass spheres mounted to mooring chain for backup recovery, dual acoustic releases, and a deadweight anchor. Each Global Array will also include a Global Profiler Mooring and two Global Flanking Moorings.