Geoacoustic inversion by mode amplitude perturbation
Poole, Travis L.
Frisk, George V.
Lynch, James F.
Pierce, Allan D.
MetadataShow full item record
This paper introduces a perturbative inversion algorithm for determining sea floor acoustic properties, which uses modal amplitudes as input data. Perturbative inverse methods have been used in the past to estimate bottom acoustic properties in sediments, but up to this point these methods have used only the modal eigenvalues as input data. As with previous perturbative inversion methods, the one developed in this paper solves the nonlinear inverse problem using a series of approximate, linear steps. Examples of the method applied to synthetic and experimental data are provided to demonstrate the method's feasibility. Finally, it is shown that modal eigenvalue and amplitude perturbation can be combined into a single inversion algorithm that uses all of the potentially available modal data
Author Posting. © Acoustical Society of America, 2008. This article is posted here by permission of Acoustical Society of America for personal use, not for redistribution. The definitive version was published in Journal of the Acoustical Society of America 123 (2008): 667-678, doi:10.1121/1.2821975.
Showing items related by title, author, creator and subject.
Carbon fluxes and pelagic ecosystem dynamics near two western Antarctic Peninsula Adélie penguin colonies : an inverse model approach Sailley, Sevrine F.; Ducklow, Hugh W.; Moeller, Holly V.; Fraser, William R.; Schofield, Oscar M. E.; Steinberg, Deborah K.; Garzio, Lori M.; Doney, Scott C. (Inter-Research, 2013-10-31)An inverse food-web model for the western Antarctic Peninsula (WAP) pelagic food web was constrained with data from Palmer Long Term Ecological Research (PAL-LTER) project annual austral summer sampling cruises. Model ...
Analysis of modal evolution caused by a weakly range-dependent seabed in shallow water and its application to inversion for geoacoustic properties Ohta, Kazuhiko (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1993-09)In a shallow water ocean environment, the range-dependent variation of the geoacoustic properties of the seabed is one of the crucial factors affecting sound propagation. Since the local modes of propagation depend on ...
Thermal evolution of the North Atlantic lithosphere : new constraints from magnetic anomaly inversion with a fractal magnetization model Li, Chun-Feng; Wang, Jian; Lin, Jian; Wang, Tingting (John Wiley & Sons, 2013-12-11)Using recently published global magnetic models, we present the first independent constraint on North Atlantic geothermal state and mantle dynamics from magnetic anomaly inversion with a fractal magnetization model. Two ...