Silly ideas
What would you see if you scanned an area of ocean with LADS? Obviously not the ocean floor at those depths, but would it pick up semi-submerged objects of the size reported? Would it be any better, faster or more reliable (or serve as an aid to) visual search, when light or visibility is not that great? Or would it require a far finer search grid than can be searched visually? (How wide a swathe can you search visually?)