Scientists Figured Out Sound of Mariana Trench

04.03.2016

National Oceanic and Atmospheric Administration (NOAA) has completed the first phase of the study of the deepest point of the Pacific – the Challenger Deep in the Mariana Trench.

Scientists Figured Out Sound of Mariana Trench

Twenty-three days in a row a microphone in a titanium shell was placed at a depth of more than 10, 000 meters, it recorded all the sounds at the bottom of the Mariana Trench. It turned out that there is no trace of silence there. The most frequent recorded sounds are from the distant earthquakes, songs of baleen whales, noise of typhoons and roar of ship propellers. In early 2017 it is planned to continue the surveillance, increasing the time of plunging a hydrophone in the Challenger Deep.

The purpose of the project is to find out how the noise level created by man has recently increased and how it affects dolphins, whales and other sea creatures that communicate and orient themselves under water with the help of audio signals.