Abstract:A preliminary attempt has been made to determine to what extent ambient noise levels in a relatively large isolated body of water are accounted for by seismic disturbances communicated to the water through the land-water boundary. Using the Naval Electronics Laboratory barge facility at Lake Pend Orielle, measurements of ambient noise pressure levels in the frequency range from 11 to 250 cps have been made under various surface conditions, in water of 750-ft depth. Of particular interest is the lowness of the … Show more
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