Accession Number : AD1024338


Title :   Probabilistic Geoacoustic Inversion in Complex Environments


Descriptive Note : Technical Report


Corporate Author : University of Victoria Victoria BC Canada


Personal Author(s) : Dettmer,Jan ; Dosso,Stan E


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1024338.pdf


Report Date : 30 Sep 2015


Pagination or Media Count : 8


Abstract : Propagation and reverberation of acoustic fields in shallow water depend strongly on the spatial variability of seabed geoacoustic parameters, and lack of knowledge of seabed variability is often a limiting factor in acoustic modeling applications. However, direct sampling (e.g., coring) of vertical and lateral variability is expensive and laborious, and long-range inversion methods can fail to provide sufficient resolution. For proper quantitative examination of variability, parameter uncertainty must be quantified first which can be particularly challenging for large data sets, and in range-dependent and/or dispersive seabed environments.


Descriptors :   shallow water , reverberation , acoustics , seabed , geoacoustics , algorithms , digital data , secondary waves


Distribution Statement : APPROVED FOR PUBLIC RELEASE