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Ocean-Bottom Seismometer

Ocean-Bottom Seismometer

Seismometers on the seafloor measure small movement in Earth's crust.

Source: Ocean Instruments
Autonomous Hydrophone Array (AHA)

Autonomous Hydrophone Array (AHA)

Hydrophones “hear” and record sound waves in the ocean.

Nootka Buoy

Nootka Buoy

The Nootka buoy offers scientists the equivalent of a wireless hotspot in the middle of the deep ocean. It uses acoustic telemetry to send information through the water in bursts of sound waves.

Source: Ocean Instruments

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