The TRIAXYS™ Directional Wave Buoy with Currents was developed to meet the demand for a combined wave and current measuring device that avoids the problems associated with seabed-mounted instrumentation. It measures directional waves and 3D currents accurately and precisely.

This buoy is a standard TRIAXYS™ Buoy that has been modified to integrate a Nortek Aquadopp 400 or 600 KHz ADCP through the hull in a downward facing configuration.  The Nortek Aquadopp ADCP works in both typical ocean surface water and in the high sediment suspensions found near the coast or in rivers. A variety of head designs ensure optimal measurement conditions, regardless of deployment surroundings. The Aquadopp Profiler provides current speed and direction in up to 128 different layers or ‘bins’ of the water column. The system electronics integrates Doppler velocity with temperature, pressure, tilt, and compass sensors – all standard with each instrument.

The heart of the TRIAXYS™ with Currents Buoy is developed from the AXYS WatchMan™ DCP, which integrates sensor systems and provides onboard data processing, data logging, telemetry, and diagnostic/set-up routines.

The TRIAXYS™ sensor unit (PDF, 229 Kb) is comprised of three accelerometers, three rate gyros, a fluxgate compass, and the proprietary TRIAXYS™ Processor.

A variety of telemetry options are available, including VHF, Inmarsat D+, Iridium, GSM, and CDMA. The data transmitted from the buoy include wave statistics, HNE (Heave, North and East Displacements), MeanDir (Wave Direction and energy as a function of frequency), directional and non-directional wave spectra, buoy configuration, status data, position, and WatchCircle™ alarm messages.

Please see our Mooring Requirements Page for information, calculations and recommendations on moorings for TRIAXYS™ Wave and Current Buoys.