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- W2895860358 abstract "The cold and warm water carried by the eddies can significantly change the structure of the sound speed field, which is the key factor affecting long range deep-water sound propagation. Investigations of individual eddies have typically employed extensive deep bathy thermography readings. However, these procedures typically require a high density of readings throughout the oceanic region containing the eddy, requiring fairly extensive ship time and equipment. Further, results from these procedures are restricted to regions within the eddy where data were acquired. Fortunately, with the development of ocean models, it is convenient to obtain high-resolution ocean state estimates in global ocean as well as in regional ocean areas. In this presentation, we use the Hybrid Coordinate Ocean Model (HYCOM) extensively for high-resolution simulations to quantify the effects of vertical and horizontal refraction caused by a realistic ocean environment and actual bathymetry in Gulf of Mexico. For fixed source and receiver configurations, the impact of frequency, source depth in received pressure field and influence of frontal eddies on the travel time (and arrival angle) are examined. Moreover, the scenario and computational approach for a simulated long-range transmitted signal through a dynamic ocean with eddies is presented. Depth-averaged transmission loss, which computed by averaging the acoustic pressure-squared in the water over depth, is used to facilitate the observation of 3D horizontal refraction through frontal eddies." @default.
- W2895860358 created "2018-10-26" @default.
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- W2895860358 date "2018-09-01" @default.
- W2895860358 modified "2023-09-25" @default.
- W2895860358 title "Analysis of frontal eddies effect and horizontal refraction in Gulf of Mexico with Hybrid Coordinate Ocean Model (HYCOM)" @default.
- W2895860358 doi "https://doi.org/10.1121/1.5068424" @default.
- W2895860358 hasPublicationYear "2018" @default.
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