auv-ee, arithmetic redo.
2k by 2k by 16 bits is 8 megabytes. That times 100,000 is 800 gigabytes. That is a LARGE disk to take home. (2e3 * 2e3 * 2 * 1e5 = 800e9)
Of course, that would not be one AUV taking 800GiB of pictures. That's a different storage problem. A 32G solid state drive would hold a fair amount, maybe enough to be worth a trip back to the surface. I figure I'd not put a regular hard disk in an AUV environment?
I'm not sure the ship would have had the spare terabyte drive to store the
images. (1024 vs 1000 factor plus file system overhead.)
Somebody else remarked about 15,000 images. That sounds like a reasonable number to take home. But I'm just guessing.