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ROV on the Cable Trail at Methoni

2-day video tracking survey carried out for the Nestor Institute

The IMBC deep Water ROV MITOS carried out its first detailed video survey of a recently laid cable from Methoni to the deep water basin off the south west coast of the Peloponnese. The survey was commissioned by Professor Leonidas Resvanis of the Nestor Institute which carried out the cable laying.
The cable is the first part of the installation of a giant underwater neutrino detector. After laying, it was found to be faulty. A glance at the images (shown below) recording the cable's progress over the sea bottom, from depths of 14 m to 900 m reveals what is happening down below with astonishing fidelity and clarity. The IMBC ROV team spent two days "live boating" from RV PHILIA, and tracked the cable over a distance of 11.3km.

In its first operational outing, the ROV flew over seabeds consisting of seagrass meadows, sandy bottoms, maerl beds, flat mud and rocky precipices reminiscent of the snow-covered Alps.
Several potentially damaging "strangled loops" were found in the armoured fibre optic cable. The survey however had to be cut short because of lack of time and some light damage to the system when it met an undetectable overhang.
18 hours of video survey along with 200 "grabbed" images were delivered to Prof. Resvanis before departure. The ROV anticipates returning to the area later in the year to complete the survey, tracking the cable down to depths of 1900 m.











 

 

 


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