No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.
Toward ocean attenuation tomography: Determining acoustic volume attenuation coefficients in seawater using eigenray amplitudes
G. Jin and P. F. Worcester, “ The feasibility of measuring ocean pH by long-range acoustics,” J. Geophys. Res. 94(C4), 4749–4756, doi:10.1029/JC094iC04p04749 (1989).
T. F. Duda, “ Revisiting experimental methods for studies of acidity-dependent ocean sound absorption,” J. Acoust. Soc. Res. 125(4), 1971–1981 (2009).
M. Ainslie. Principles of Sonar Performance Modelling, Springer Praxis Books in Geophysical Sciences ( Springer-Verlag, Berlin, 2010).
R. E. Francois and G. R. Garrison, “ Sound absorption based on ocean measurements. Part II: Boric acid contribution and equation for total absorption of sound,” J. Acoust. Soc. Am. 72(6), 1879–1890 (1982).
Peter G. Brewer, “ Ocean chemistry of the fossil fuel CO2 signal: The haline signal of ‘business as usual,’ ” Geophys. Res. Lett. 24(11), 1367–1369, doi:10.1029/97GL01179 (1997).
Keith C. Hester, Edward T. Peltzer, William J. Kirkwood, and Peter G. Brewer, “ Unanticipated consequences of ocean acidification: A noisier ocean at lower pH,” Geophys. Res. Lett. 35(19), L19601, doi:10.1029/2008GL034913 (2008).
D. Benjamin Reeder and Ching-Sang Chiu, “ Ocean acidification and its impact on ocean noise: Phenomenology and analysis,” J. Acoust. Soc. Am. 128(3), EL137–EL143 (2010).
M. A. Ainslie and J. G. McColm, “ A simplified formula for viscous and chemical absorption in sea water,” J. Acoust. Soc. Am. 103(3), 1671 (1998).
M. B. Porter, H. Schmidt, F. B. Jensen, and W. A. Kuperman, Computational Ocean Acoustics ( AIP, Woodbury, NY, 2011).
M. B. Porter, “ The BELLHOP manual and user's guide: Preliminary draft” (January, 2011).
R. E. Francois and G. R. Garrison, “ Sound absorption based on ocean measurements: Part I: Pure water and magnesium sulfate contributions,” J. Acoust. Soc. Am. 72(3), 896–907 (1982).
Article metrics loading...
A deep-water experiment in the Pacific made in situ
measurements of the volume attenuation coefficients of sea water in the mid-frequency range. The frequency, temperature, salinity, pH, and pressure dependent seawater attenuation coefficients were determined using a vertical line array that received and identified over 2000 unique paths from 1200 mid-frequency 3–9 kHz LFM source transmissions at a convergence zone range and depth up to 400 m. The results show no change in attenuation coefficients in this band compared to estimates from 30-year-old models previously determined from a combination of long-range ocean acoustic and laboratory experiments. The inversion also explores the feasibility of ocean acoustic attenuation tomography to further separate the depth-dependent chemical components responsible for the total attenuation loss through by isolating a group of deep-water refracting acoustic paths.
Full text loading...
Most read this month