ASV Global and TerraSond have completed a seabed cable route survey supported by an unmanned surface vehicle (USV), the company announced on 5 October.
The survey took place in a range of water depths and currents, while facing difficult wind and sea conditions in the Bering Sea off Alaska.
The project saw the ASV Global C-Worker 5 USV equipped with a payload including a hull-mounted multibeam sonar, a sub-bottom profiler, and a towed sidescan sonar with 250m of armoured sonar cable.
A total of 1,220km of cable route survey lines was then successfully executed by the C-Worker 5 system.
Throughout the operation, the C-Worker 5 was remotely monitored using ASV Global’s ASView control system from a station on TerraSond’s mother vessel. ASView used exported .dxf survey lines from TerraSond’s survey planning system to autonomously execute an accurate survey with minimal human intervention.