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They've used multibeam sonars among other types of sonars, without success. https://www.youtube.com/watch?v=MOjVq5szAoU https://www.youtube.com/watch?v=MOjVq5s
by oldgradstudent 4y ago
They've used multibeam sonars among other types of sonars, without success.
https://www.youtube.com/watch?v=MOjVq5szAoU https://www.youtube.com/watch?v=MOjVq5szAoU
The range of sonars is quite limited and the ocean is huge. There's really no point in searching unless you have a good starting point.