Surface Telemetry Engineering Mooring (STEM)

A mooring has been developed to collect and transmit oceanographic and meteorological data via satellite links. Data telemetered included currents (from 50 to 250 m), water and air temperature, wind, relative humidity, barometric pressure, and various engineering parameters. The unique aspect of the STEM design was the use of electromechanical cable for both the strength member of the mooring and the electrical connection between the subsurface instruments and the surface buoy. The surface mooring was deployed 150 m south of Cape Cod in 2700 m of water in November 1987 and retrieved in May 1988. It operated successfully through the harsh North Atlantic winter.<<ETX>>