Generic Vessel
Campaign Ships

Singlebeam Echo Sounder System (SBES) is an in situ acoustic sensor used to measure the water depth to the seafloor. SBES determines the water depth by measuring the travel time of a sonar signal in two directions. SBES operate at a single frequency in the 24-33 kHz range for deeper water surveys and the 200-400 kHz range for shallow water surveys. They can operate in water depths under 100 meters up to 6,000 meters.

If instrument mode or detailed specification information is not available, can use this entry for spectrometers of various types. A spectrometer is an instrument that measures a range of a characteristic for a given substance or wavelength. There are many different types of spectrometers. Some examples are mass spectrometers, spectrophotometers, and magnetic radiation spectrometers.

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The Acoustic Doppler Current Profiler (ADCP) is an in situ acoustic sensor used to measure ocean currents. ADCP uses the Doppler effect to detect sound waves to provide measurements of the speed and direction of currents throughout the water column. ADCP can easily be mounted on different water platforms such as ships, buoys, and autonomous underwater vehicles (AUVs). It also can be deployed on the seafloor to provide profile measurements of ocean currents.