When COVID-19 sparked an extreme economic slowdown, sending cruise ships to port and oil tankers to anchor, the dream to 'hear' oceans became a reality WorldOceansDay
FILE PHOTO: An empty shipping dock is seen, as the global outbreak of the coronavirus disease continues, in the Port of Los Angeles, California, U.S., April 16, 2020. REUTERS/Lucy Nicholson/File Photo
“Well, we’re not excited that COVID happened, but we’re happy to be able to take advantage of the scientific opportunity,” says Peter Tyack, a professor of marine mammal biology at the University of St. Andrews in Scotland and one of the early instigators. “It would have just been impossible any other way.”
Some of the project’s listening posts are connected to land via cables, but many of them are not and the recordings have to be retrieved by ships. Now that economies around the world are reopening, the quiet oceans group has started gathering the soundscape data. Sound waves travel farther and faster in water than in the air. That’s especially true of the bass notes of a whale’s song, the low grinding of a ship’s shaft, even the rumble of a nuclear explosion. Those sounds can travel hundreds or even thousands of miles, bending around the planet by bouncing up and down in the SOFAR channel, a kilometer-deep band of water.
“We spent a lot of time planning: How would you try to set up this kind of study, even though we realized that it wasn’t really practical?”
France Dernières Nouvelles, France Actualités
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