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ASV Global and TerraSond announce completion of the first-ever seabed cable route survey supported by an unmanned surface vehicle (USV). The survey route included various water depths and strong currents, while facing difficult wind and sea conditions in the Bering Sea offshore Alaska.
The project was mobilized immediately following a 9,000 kilometer nautical charting survey by Terrasond, of which 4,750 kilometer (53%) was executed by an ASV Global C-Worker 5 autonomous surface vehicle (ASV). The cable route survey required a new payload, including a hull-mounted multibeam sonar, a subbottom profiler, and a towed sidescan sonar with 250 meter of armored sonar cable. The payload swap on the ASV was integrated, calibrated, and demonstrated in the field in less than 48 hours. A total of 1,220...