Determination of acoustic attenuation in the Hudson River Estuary by means of ship noise observations | Zendy

Heui-Seol Roh | Zendy; Alexander Sutin | Zendy; Barry Bunin | Zendy

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Determination of acoustic attenuation in the Hudson River Estuary by means of ship noise observations

Author(s) -

Heui-Seol Roh,

Alexander Sutin,

Barry Bunin

Publication year - 2008

Publication title -

the journal of the acoustical society of america

Language(s) - English

Resource type - Journals

eISSN - 1520-8524

pISSN - 0001-4966

DOI - 10.1121/1.2908404

Subject(s) - attenuation , acoustics , underwater , hydrophone , acoustic attenuation , noise (video) , sound (geography) , estuary , geology , attenuation coefficient , environmental science , underwater acoustics , physics , oceanography , computer science , optics , artificial intelligence , image (mathematics)

Analysis of sound propagation in a complex urban estuary has application to underwater threat detection systems, underwater communication, and acoustic tomography. One of the most important acoustic parameters, sound attenuation, was analyzed in the Hudson River near Manhattan using measurements of acoustic noise generated by passing ships and recorded by a fixed hydrophone. Analysis of the ship noise level for varying distances allowed estimation of the sound attenuation in the frequency band of 10-80 kHz. The effective attenuation coefficient representing the attenuation loss above cylindrical spreading loss had only slight frequency dependence and can be estimated by the frequency independent value of 0.058 dBm.

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