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- W2015376743 abstract "The ocean acoustic tomography experiments conducted to date can be divided into mapping experiments, in which many sources and/or receivers are used to generate sufficient crossing ray paths to resolve the mesoscale ocean structure, and overaging experiments, in which data are obtained in a vertical slice between a single pair of sources and/or receivers in order to construct horizontally averaged vertical profiles. While it is economically feasible to deploy enough instruments to construct an array capable of mapping an area a few hundred kilometers on a side, it becomes prohibitive for areas one megameter and larger in scale, even though many fewer tomography instruments are required than conventional point measurements. One possible approach to make high-resolution, three-dimensional maps of large areas of the ocean is to develop a hybrid system, in which a combination of moored instruments and precisely positioned sources and/or receivers suspended from ships are used to generate a dense set of crossing ray paths. Simulations indicate that four or five transceivers moored in a large array to make long-term measurements of the average ocean structure could be combined with periodic cruises with ship-suspended sources and/or receivers to give excellent maps of a square megameter of ocean. It will be essential in such experiments to use data assimilation techniques to combine the data obtained as a function of time by the ship into a numerical model of the ocean. Other data types (e.g., satellite altimeter data) can be assimilated at the same time to improve the resulting maps of the ocean." @default.
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- W2015376743 date "1987-11-01" @default.
- W2015376743 modified "2023-09-24" @default.
- W2015376743 title "High‐resolution ocean acoustic tomography" @default.
- W2015376743 doi "https://doi.org/10.1121/1.2024811" @default.
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