Simulated tomographic reconstruction of ocean features using drifting acoustic receivers and a navigated source


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dc.contributor.author Duda, Timothy F.
dc.contributor.author Pawlowicz, Richard A.
dc.contributor.author Lynch, James F.
dc.contributor.author Cornuelle, Bruce D.
dc.date.accessioned 2008-11-06T17:04:32Z
dc.date.available 2008-11-06T17:04:32Z
dc.date.issued 1995-10
dc.identifier.citation Journal of the Acoustical Society of America 98 (1995): 2270-2279 en
dc.identifier.uri http://hdl.handle.net/1912/2571
dc.description Author Posting. © Acoustical Society of America, 1995. 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 98 (1995): 2270-2279, doi:10.1121/1.413341. en
dc.description.abstract Numerically simulated acoustic transmission from a single source of known position (for example, suspended from a ship) to receivers of partially known position (for example, sonobuoys dropped from the air) are used for tomographic mapping of ocean sound speed. The maps are evaluated for accuracy and utility. Grids of 16 receivers are employed, with sizes of 150, 300, and 700 km square. Ordinary statistical measures are used to evaluate the pattern similarity and thus the mapping capability of the system. For an array of 300 km square, quantitative error in the maps grows with receiver position uncertainty. The large and small arrays show lesser mapping capability than the mid-size array. Mapping errors increase with receiver position uncertainty for uncertainties less than 1000-m rms, but uncertainties exceeding that have less systematic effect on the maps. Maps of rms error of the field do not provide a complete view of the utility of the acoustic network. Features of maps are surprisingly reproducible for different navigation error levels, and give comparable information about mesoscale structures despite great variations in those levels. en
dc.description.sponsorship This work was supported by Office of Naval Research grants N00014-9l-J-1138 (Arctic Sciences )and N00014-92-I-1162 (Ocean Acoustics). en
dc.format.mimetype application/pdf
dc.language.iso en_US en
dc.publisher Acoustical Society of America en
dc.relation.uri http://dx.doi.org/10.1121/1.413341
dc.subject Accuracy en
dc.subject Errors en
dc.subject Mapping en
dc.subject Oceanography en
dc.subject Remote sensing en
dc.subject Simulation en
dc.subject Tomography en
dc.subject Wave propagation en
dc.subject Sound sources en
dc.subject Sound velocity en
dc.title Simulated tomographic reconstruction of ocean features using drifting acoustic receivers and a navigated source en
dc.type Article en
dc.identifier.doi 10.1121/1.413341

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