Distance between ROV and sea ice from ROV survey PS122/1_8-125 on 2019-11-19,...

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...采用一台附着的单波束仰视声呐高度计（Tritech PA500），测得遥控水下机器人（Remotely Operated Vehicle，ROV）与海冰下表面之间的距离。