A New Scheme for Acoustical Tomography of the Ocean
NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION BOULDER CO EARTH SYSTEM RESEARCH LAB
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LONG-TERM GOALS. The long-term goal is to develop a remote sensing technique to infer ocean inner 3-D structure using acoustical means. This technique should provide an affordable mean of studying ocean dynamics on different temporary and spacial scales. OBJECTIVES. The objective is to develop a new robust scheme of the acoustical tomography of the ocean of meso- to global scales which is able to infer a 3-D ocean inner structure using simple tonal low-frequency acoustic signals and vertical line receiving arrays. The inversion scheme should be based on measurements of horizontal refraction angle HRA related to different acoustic modes rather that travel time along different rays. Both inhomogeneity of the sound speed field and ocean current should be retrieved.
- Earth Sciences and Oceanography