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Seawater - Attenuation of Sound

Attenuation of sound in seawater vs. temperature and frequency.

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Attenuation of sound in seawater:

Seawater - Attenuation of Sound
Temperature (°C)Attenuation (dB/km)
Frequency (kHz)
0.51251020
  0 0.03 0.07 0.14 0.41 1.3   4.6
10 0.02 0.07 0.14 0.33 0.92 3.2
20 0.02 0.06 0.13 0.30 0.70 2.2
30 0.01 0.05 0.13 0.29 0.58 1.6
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    Noise is usually defined as unwanted sound - noise, noise generation, silencers and attenuation in HVAC systems.

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