There is increasing evidence that the low‐frequency sound absorption in the Pacific is less than that in the Atlantic. The origin of the excess absorption below 1 kHz has recently been identified as a boron relaxation. A compilation of available Pacific data appears to show one‐half the boron absorption found in the Atlantic, which suggests significant differences in the chemical composition of the oceans.
Subject Classification: [43]30.20, [43]20.35.
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© 1976 Acoustical Society of America.
1976
Acoustical Society of America
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