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Humans are loud, and the globe reverberates with the sounds of the machines they need to live their modern lives, but nowhere is that cacophony louder than in the ocean
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Applied Technology Review | Thursday, February 10, 2022
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Research says that the oceanographers have recognized how the ocean’s natural noises are impacted by human behavior
FREMONT CA: Humans are loud, and the globe reverberates with the sounds of the machines they need to live their modern lives, but nowhere is that cacophony louder than in the ocean, where sound travels far faster and hundreds of kilometers. The cacophony of noise from drilling, blasting, dredging, and the engines of ships and other boats traversing the seas impact life in the ocean, but researchers are still trying to figure out how awful it is for life under the waves. Oceanographers have long recognized the importance of studying the ocean's natural noises and how they are affected by human activity. They've brought great tools to bear as part of that endeavor, transforming our understanding of the ocean - Earth's last frontier. One of the most recent technological accomplishments is cabled observatories. Following a successful demonstration of a 52-kilometer fiber-optic cable on the seafloor in Monterey Bay in 2007, the United States has built over 900 kilometers of cables off the Pacific Northwest coast.
During the Covid-19 silence, NOAA scientists conducted watershed studies on marine habitats from coast to coast, including Hawaii and Alaska. The research looked at how humpback and right whales use sound, how it differs from when humans make a lot of noise and even took hormone samples from whales to compare stress levels during quiet time verse when humans live at maximum volume. According to research conducted in Glacier Bay National Park, Whales were relaxed more, spread out, and even increased their ranging regions to cover shipping channels in the absence of human-created noise.
Many of the hydrophones utilized by NOAA’s noise reference community rely upon strength brought through a way of means of cables or, with inside the case of the gliders in Massachusetts, through a way of means of batteries that want to be modified through a way of means of human beings on ships, each process is extraordinarily complex logistically and expensive. The International Argo Network operates a fleet of 4,000 independent profiling floats that presently roams the sea, gathering records like salinity and temperatures. Using independent floats powered by clean, renewable electricity gives a win for each of the surroundings and business.