Marine Acoustic Passive Monitoring

Marine Acoustic Passive Monitoring involves listening to sounds in the ocean without transmitting any signals. Specialized underwater microphones, called hydrophones, are used to detect noises from ships, marine life, or natural phenomena. This technique helps scientists and security agencies track vessel movements, study marine ecosystems, and monitor underwater activities discreetly. Since it does not emit sound, it is a non-intrusive way to gather important information about the ocean environment and human activities beneath the surface.