During the survey, the remains of 13 ship wrecks were surveyed. These had all been previously charted however this new data will allow the locations of the wrecks to be pin pointed with greater accuracy. Initial research of existing databases suggests that 5 of the ships were sunk as a result of attacks on British merchant vessels during World War 1.
For more information about wrecks surveyed by INFOMAR visit here
Another interesting feature that became apparent on the multibeam sonar data was the presence of a number of small features in the seabed, east of Wicklow Head. Further investigation using a drop camera showed the features to be boulders up to 2 metres in size. They have been interpreted as granite boulders deposited offshore by glacial processes.
Photograph taken by an underwater camera of the boulders on the seabed off Wicklow Head.
Due to the strong tidal currents operating in the Irish Sea, the multibeam sonar data also surveyed a large scour area off the Wicklow coast. This large depression is over 100 metres deep whereas the surrounding water depth is closer to 30 metres. The feature is over 2.5 kilometres long and 600 metres wide.
Tidal scour feature surveying during the CV10_01 leg.
All INFOMAR data is available for free download here.