Abstract
The concept of cycle distance is reviewed, drawing initially on recent studies by C T Tindle, S G Payne and the author. Note that in underwater acoustics the bottom loss and the cycle distance together control an important part of the attenuation, and this is the central theme of the work cited. For a given mode it is not easy to find a definition of cycle distance that is both precise and generally applicable; two new attempts are described here. The most successful of these is in terms of group velocity; and its implications, including those for bottom interaction, are still being examined.
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References
C. T. Tindle, The equivalence of bottom loss and mode attenuation per cycle in underwater acoustics, J. Acoust. Soc. Am. 66, 250–255 (1979).
D. E. Weston and C. T. Tindle, Reflection loss and mode attenuation in a Pekeris model, J. Acoust. Soc. Am. 66, 872–879 (1979).
C. T. Tindle and D. E. Weston, Connection of acoustic beam displacement, cycle distances, and attenuations for rays and normal modes, submitted to the Journal of the Acoustical Society of America.
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© 1980 Plenum Press, New York
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Weston, D.E. (1980). Cycle Distance in Guided Propagation. In: Kuperman, W.A., Jensen, F.B. (eds) Bottom-Interacting Ocean Acoustics. NATO Conference Series, vol 5. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-9051-0_26
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DOI: https://doi.org/10.1007/978-1-4684-9051-0_26
Publisher Name: Springer, Boston, MA
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