Distributed acoustic sensing (DAS): Shedding light on passive acoustics
A network of fiber-optic telecommunication cables spans 1.2 million km of the seafloor, covering both deep ocean and coastal areas around the globe. The cables are used to transmit phone calls, internet signals, and other data. Using a method called Distributed Acoustic Sensing (DAS), researchers are now working to repurpose these globally available telecommunication cables [...]