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Parameter Tree:
EARTH SCIENCE > OCEANS > OCEAN ACOUSTICS > ACOUSTIC ATTENUATION/TRANSMISSION
Definition:
Attenuation: Diminution of the intensity of acoustical energy propagating
through a medium with the distance traveled, through absorption and
scattering. Transmission: Propagation or the motion of waves through or
along a medium. 
Reference:
Adapted from: Neshyba S. 1987. Oceanography, Perspectives on a Fluid Earth.
John Wiley and Sons, Inc. p. 477.
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