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Manned or unmanned vessels that are capable of underwater operations, used for deep-sea observations and research missions.

Used for precise mapping of the seafloor, it emits multiple sound waves in a fan shape to measure the return time and strength to create detailed bathymetric maps.

AUVs are pre-programmed, robotic vehicles used in oceanography for mapping, sampling, and scientific research without direct human control.

A tool for taking sediment cores from the ocean floor to study the layers of sediment, which contain information about past oceanic conditions.

Operated by a crew aboard a vessel, ROVs are used to explore deep waters, collect samples, and conduct underwater research with minimal risk.

Deployed from a ship to measure the temperature of seawater at different depths as it descends. Useful for obtaining temperature profiles quickly.

Used to determine the salinity, temperature, and depth of seawater, which are crucial for understanding ocean circulation and properties.