echo sounding

Echo sounding is a technique used to measure the depth of water by sending sound waves from a transmitter into the ocean or a lake. When these sound waves hit the seafloor or any underwater object, they bounce back to the surface. By calculating the time it takes for the sound waves to return, scientists can determine the distance to the bottom. This method is essential for mapping the underwater landscape, navigating ships, and studying marine environments. Echo sounding is widely used in oceanography, fishing, and naval applications.