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EARTH SCIENCE > OCEANS > OCEAN ACOUSTICS > AMBIENT NOISE
Definition:
The acoustic energy above which a single desired signal is heard. In
the oceans, ambient noise can be produced physically (e.g. wind, rain,
bubbles) or biologically (e.g. whales, dolphins).  
Reference:
Adapted from: Open University. 1989. Seawater: its composition, properties and
behaviour. Pergamon Press. p. 78-79.
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