SONAR stands for sound navigation and ranging. Ultrasonic waves are released into the ocean from the ship in all directions. These waves are reflected back from the barrier, such as an iceberg or a sunken ship. This is known as echo depth sounding.
SONAR stands for sound navigation and ranging. Ultrasonic waves are released into the ocean from the ship in all directions. These waves are reflected back from the barrier, such as an iceberg or a sunken ship. This is known as echo depth sounding.