{"id":{"repo_id":"nps","oai_identifier":"oai:calhoun.nps.edu:10945/27219"},"canonical_url":"https://search.dev.ndltd.org/etd/nps/oai:calhoun.nps.edu:10945/27219","repository":{"repo_id":"nps","name":"Naval Postgraduate School","base_url":"https://calhoun.nps.edu/server/oai/request"},"display":{"title":"Prediction of the beamformed acoustic ray arrival structure for the 1992 Barents Sea coastal tomography test","abstract":"In an effort to solve the forward propagation problem associated with the 1992 Barents Sea Polar Front Experiment Tomography Test, the transmission of a 224 Hz pulse signal from a near bottom sound source to a vertical hydrophone array was simulated based on three-dimensional ray theory. based on three- dimensional ray theory. Through numerical raytracing, followed by eigenray searches and estimations of ray amplitudes, searches and estimations of ray amplitudes, phases and travel times, the arrival structure as a function of time and elevation angle was constructed. The simulation was performed for both a two-dimensional and three-dimensional modeled ocean environment in order to examine the significance of three-dimensional effects. The predicted arrival structures compare well with the observed data. Three-dimensional effects proved to be significant only for the latest arrivals","abstract_html":"In an effort to solve the forward propagation problem associated with the 1992 Barents Sea Polar Front Experiment Tomography Test, the transmission of a 224 Hz pulse signal from a near bottom sound source to a vertical hydrophone array was simulated based on three-dimensional ray theory. based on three- dimensional ray theory. Through numerical raytracing, followed by eigenray searches and estimations of ray amplitudes, searches and estimations of ray amplitudes, phases and travel times, the arrival structure as a function of time and elevation angle was constructed. The simulation was performed for both a two-dimensional and three-dimensional modeled ocean environment in order to examine the significance of three-dimensional effects. The predicted arrival structures compare well with the observed data. Three-dimensional effects proved to be significant only for the latest arrivals","abstract_has_math":false,"creators":["Mykyta, John L."],"institution":"Monterey, California. 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Through numerical raytracing, followed by eigenray searches and estimations of ray amplitudes, searches and estimations of ray amplitudes, phases and travel times, the arrival structure as a function of time and elevation angle was constructed. The simulation was performed for both a two-dimensional and three-dimensional modeled ocean environment in order to examine the significance of three-dimensional effects. The predicted arrival structures compare well with the observed data. Three-dimensional effects proved to be significant only for the latest arrivals"]},{"key":"dc:title","label":"Title","values":["Prediction of the beamformed acoustic ray arrival structure for the 1992 Barents Sea coastal tomography test"]}]}],"canonical_facts":{"dc:contributor.advisor":["Chiu, Ching-Sang","Miller, James H."],"dc:contributor.department":["Physical Oceanography"],"dc:creator":["Mykyta, John L."],"dc:date.accessioned":["2013-01-23T22:10:24Z"],"dc:date.available":["2013-01-23T22:10:24Z"],"dc:date.issued":["1993-12"],"dc:description.abstract":["In an effort to solve the forward propagation problem associated with the 1992 Barents Sea Polar Front Experiment Tomography Test, the transmission of a 224 Hz pulse signal from a near bottom sound source to a vertical hydrophone array was simulated based on three-dimensional ray theory. based on three- dimensional ray theory. Through numerical raytracing, followed by eigenray searches and estimations of ray amplitudes, searches and estimations of ray amplitudes, phases and travel times, the arrival structure as a function of time and elevation angle was constructed. The simulation was performed for both a two-dimensional and three-dimensional modeled ocean environment in order to examine the significance of three-dimensional effects. The predicted arrival structures compare well with the observed data. Three-dimensional effects proved to be significant only for the latest arrivals"],"dc:identifier.uri":["https://hdl.handle.net/10945/27219"],"dc:language.iso":["en_US"],"dc:publisher":["Monterey, California. Naval Postgraduate School"],"dc:title":["Prediction of the beamformed acoustic ray arrival structure for the 1992 Barents Sea coastal tomography test"],"dc:type":["Thesis"]},"updated_at":"2026-07-27T20:25:31Z"}