Undulating Oceanography Recorder
The Undulating Oceanography Recorder or UOR is a towed system, which is used to measure a variety of environmental data live in the top 200m of water, while the ship is cruising of up to 10kn.
The UOR can take different payloads from standard CTD (Conductivity, Temperature, Depth) sensors through different light sensors up to specialized sensors like a FRRF (Fast Repetition Rate Fluorometer) or OPC (Optical Plankton Recorder). The in water unit, the so called shuttle generates its own power by its propeller to drive a wing which enables the shuttle to constantly move up and down through the water from the surface down to about 200m. The operator is controlling the shuttle from the deck unit and setting the parameters like climb, dive rate, max and minimum depth, while he can live see the incoming fight parameters and scientific data. As it is towed at speed up to 10kn, it uses a special treated wire, to minimise its drag. Otherwise it would not be able to reach depth of 200m. To reach this depth, the whole wire is covered with fairings, which make the wire look like a wing. This wing shaped fairing reduces the drag dramatically, but makes it odd to handle. Therefore the system comes with its own winch, with a special spooling mechanism, as the wire can only be stored in a single layer.