Replacement of the Wild Island ondograph buoy

In the sea blue off the Wild Islands, Madeira Archipelago, the collaboration of the Navy divers was essential for the replacement of the CSA93 ondograph buoy, held on July 14-16, 2018.

This film, in addition to showing tasks performed by divers, shows the incrustation of several marine organisms along the mooring and buoy, causing the wear of the material and interference in the operation of sensors.

The maintenance and periodic replacement of buoys that constitute the monitoring network of the Hydrographic Institute is therefore essential to ensure the quality of information on the conditions of the sea in real time made available daily to the public.