Development of a High-Resolution Underwater Gravity Measurement System Installed on an Autonomous Underwater Vehicle.

Recently, hydrothermal deposits below the seafloor are believed to be useful for human activity. Because the size of each deposit is much smaller than that of an offshore oil field, detailed exploration for the position and the estimated mass is needed. An underwater gravity survey just above seafloor can directly give localized mass distribution below the seafloor. Therefore, we have developed an...