New research finds distinct jet noise at a depth of 100 feet in the ocean. Scientists found underwater jet noise at levels that interfere with endangered orcas’ ability to hunt for food.
See the full Seattle Times article here:
2020: December, Seattle Times, Navy Growler jet noise loud enough to reach orca pods even 100 feet underwater, new research shows
Journal of Marine Science and Engineering article:
2020: November, JMSE, Above and below: Military Aircraft Noise in Air and under Water at Whidbey Island, Washington
Also see Seattle Times in-depth, informative series on the plight of the orca:
HOSTILE WATERS: Orcas in Peril, Seattle Times