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I've heard the sonar ping from a submarine is so powerful that it will kill you if your a diver near the sonar dome.
by robotnikman 6y ago
I've heard the sonar ping from a submarine is so powerful that it will kill you if your a diver near the sonar dome.
- MrBuddyCasino 6y ago235db! Apparently also kills wales and dolphins. https://physics.stackexchange.com/questions/93222/could-submarine-sonar-kill-a-diver https://physics.stackexchange.com/questions/93222/could-subm...
- VBprogrammer 6y agoThe only saving grace is that they only use it as a last resort since sending out that kind of noise would let everyone in that hemisphere know exactly where you are.
- Anechoic 6y agoKeep in mind that's likely not related to the dB sound pressure level in air that we're all familiar with. dB is a logarithmic ratio to pressure to a reference. In air, that reference is 20µPa, acoustic pressure in water typically uses a different reference (1µPa). There is also an adjustment of 36 dB to account for the higher impedance of water. So 235 dB in water is roughly 173 dB SPL -- still loud, but many orders of magnitude lower. [0] https://fas.org/man/dod-101/sys/ship/acoustics.htm https://fas.org/man/dod-101/sys/ship/acoustics.htm
- GCPGCP 6y agoThis is what you can expect https://www.youtube.com/watch?v=sCmyZYYR7_s&t=90s https://www.youtube.com/watch?v=sCmyZYYR7_s&t=90s This diver was near a sub base for training.
- MrBuddyCasino 6y agoComments say this was very likely not a sub‘s sonar.
- ggm 6y agoOil and Gas exploration in the sea routinely uses extremely loud sounds, because explosive geosensing. Its screwing up cetacean migration and mating. It travels miles and miles.
- GareyBaldo 6y agoI can attest to this being much louder than any active sonar in the water.
- rotten 6y agoUsually it is surface ships which get that loud. In harbors where sabotage is a concern it is not uncommon to run a regular ping as a deterrent to underwater saboteurs.