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Podcast: The Blue Fish Radio Show
Episode: NOAA on Ocean Sounds
Description: NOAA scientists record sound in the deepest part of the world’s ocean and discover a cacophony of sounds both natural and human generated. For three weeks, a titanium-encased hydrophone recorded ambient noise from the ocean floor at a depth of more than 36,000 feet, or 7 miles, in the Challenger Deep trough in the Mariana Trench near Micronesia. [more for the website follows] The pressure at that depth is incredible. Atmospheric pressure in the average home or office is 14.7 pounds per square inch (PSI); it is more than 16,000 PSI at the bottom of the Mariana Trench. “You would think that the deep...