Distance between ROV and sea ice from ROV survey PS122/4_44-162 on 2020-06-24...

The distance between a remotely operated vehicle (ROV) and the sea-ice underside was measured by a single-beam upward-looking acoustic sonar altimeter (Tritech PA500) attached...采用附着的单波束向上探测声呐高度计（Tritech PA500），对遥控无人潜水器（remotely operated vehicle，ROV）与海冰下表面之间的距离开展了测量。