A network of seven off 1.9m data buoys supplied by OSIL to DHI in Denmark will be deployed to support a long term monitoring project in Kiel, Germany, starting in October.
The sturdy buoy systems each incorporate two Sea-Bird Scientific WET Labs multiparameter water quality sensors; one mounted at the surface within the robust central buoy structure to prevent damage to the instrument, and the other securely located on a unique mooring frame suspended 2m above the seabed that also accommodates a Nortek AWAC on a gimbal to monitor currents and waves. The exclusive mooring design includes a data swivel to ensure that the subsea instruments can continually report data without the risk of cable entanglements in the dynamic environment.
The buoys have a substantial power consumption rate owing to the high sampling frequency and real time data transmitted almost continuously, as required by the client, resulting in unique adaptations made by OSIL to the top frame design to accommodate methanol fuel tanks & cells at the customer’s request with the addition of secure storage for the tanks and cells, and exhaust vents.
OSIL said it produce tailored integrated systems for environmental monitoring in all marine applications. Specializing in instrumented buoy platforms, current and wave measurement systems, dredge monitoring, oil spill detection, berth management and sediment corers, OSIL offers support for systems, including instrument calibration.