Royal Netherlands Institute for Sea Research

Deployment of large 3D-T

The deployment consists of a 70 m diameter large ring, containing 3000 high-precision temperature sensors distributed over 45 vertical lines, 125 m high and 9,5 m apart. The compacted lines will unfold via automatic release of the top-buoys after 5 days at the seafloor. The construction will be lowered to 2500 m water depth, at the foot of the southern French continental slope of the Mediterranean, an area known for various currents and turbulent eddies. The location is next to the underwater neutrino telescopes KM3NeT and ANTARES.

Duration

The unique anchoring is expected to remain underwater for 3 years. In this period the 3000 sensors will measure water temperature with a precision better than 0.0005 oC, every 2 s synchronous to within ± 0.01 s.

Video: Hans van Haren