Abstract
Quantitative active acoustic remote sensing measurements of atmospheric properties are seriously affected by the excess attenuation due to turbulence. An earlier paper [E. H. Brown and S. F. Clifford, J. Acoust. Soc. Am. 60, 788–794 (1976)] studied excess attenuation on a one‐way, line‐of‐sight path. This paper considers a more complex problem: the effects of attenuation by turbulence in the paths to and from a volume of scatterers on the accuracy of echosonde measurements of the turbulence parameters within that volume. The study shows that, for typical atmospheric turbulence profiles, the excess attenuation contributed by beam broadening on an upward path beginning at the transmitting acoustic antenna is much greater than the excess attenuation suffered by the sound scattered back to the receiving antenna.
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