- Measure the seafloor topography and strata by acoustic beam
- An acoustic beam is periodically transmitted to the seafloor from the bottom of the vessel. Hydrophone array will receive the acoustic beams reflected from the seafloor in order to determine the distance between the vessel and the seafloor. The topography is determined based on this data. The sub-bottom profiler is equipped to reveal the subsurface strata at a depth of about several tens of meters. Since the seafloor is free from weathering or corrosion, its history is well preserved. Therefore, investigation of the seafloor topography will provide the history of volcanism and plate tectonics.
Seafloor topography obtained by multi-narrow beam echo sounder survey