Rutgers Blasting off of Long Beach Island

[Joey Dah Fish]

Originally Posted by njdiver

Decibel level in water has a different measurement than in air! “The decibel is a relative unit of measure, not an absolute one. Confusion arises because relative intensities in water are referenced to 1 microPascal (µPa) whereas sound waves in air are referenced to 20 microPascals (µPa). The intensity of a sound wave depends not only on the pressure of the wave, but also on the density and sound speed of the medium through which the sound is traveling. Therefore, relative sound intensities given in dB in water are not the same as relative sound intensities given in dB in air.”

http://www.dosits.org/factsandmyths/ (#11)

For more detail:

http://www.dosits.org/science/soundsinthesea/airwater/

Sounds like you are very informed. I would like to ask a question. Does sound travel further in water? Does water magnify sound waves?

[njdiver]

Originally Posted by Joey Dah Fish

Sounds like you are very informed. I would like to ask a question. Does sound travel further in water? Does water magnify sound waves?

I merely did the research on the effects on sport divers underwater. You’ll have to google the answer yourself, I’m a bit busy disseminating the information I found to sport divers.