A simplified formula for viscous and chemical absorption in sea water
Упрощённая формула для вязкого и химического поглощения в морской воде
1998-03-01
SCID: 54.1/ddvf5ken
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acoustic frequencyboric acid contributionoceanographic conditionssea watersound absorption
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Abstract (AI)
A simplified expression is presented for predicting the absorption of sound in sea water, retaining the essential dependence on temperature, pressure, salinity, and acidity of the more complicated formula on which it is based [R. E. Francois and G. R. Garrison, “Sound absorption based on ocean measurements. Part II: Boric acid contribution and equation for total absorption,” J. Acoust. Soc. Am. 72, 1879–1890 (1982)]. The accuracy of the simplified formula is demonstrated by comparison with the original one for a range of oceanographic conditions and frequencies between 100 Hz and 1 MHz.
Key Findings
1
A simplified formula is introduced to predict sound absorption in seawater while retaining dependence on temperature, pressure, salinity, and acidity.
2
Its accuracy is demonstrated through comparisons with the original formula across varied oceanographic conditions.
3
The evaluation covers sound frequencies from 100 Hz to 1 MHz, indicating applicability across a broad frequency range.
4
The formula is derived from and approximates the more complex Francois–Garrison absorption model, including viscous and chemical absorption effects.
Research Object
sound absorption in seawater
Research Subject
the dependence of sound absorption on temperature, pressure, salinity, acidity, and frequency, including viscous and chemical absorption contributions
Publication Details
Publication Date
1998-03-01
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