Acoustic tomography for monitoring the Sea of Japan: a pilot experiment |
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| Authors: | Spindel RC Jungyul Na Dahl PH Suntaek Oh Eggen C Young Gyu Kim Akulichev VA Morgunov YN |
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| Institution: | Appl. Phys. Lab., Univ. of Washington, Seattle, WA, USA; |
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| Abstract: | A pilot experiment was conducted in the Sea of Japan (also called the East Sea) in September-October 1999, to assess the possibility of using acoustic tomographic techniques for monitoring water mass structure and dynamics. Acoustic m-sequence signals at various frequencies between 250 and 634 Hz were transmitted from bottom-mounted acoustic sources in shallow water off the coast of Vladivostok to vertical-array receiving systems deployed off the north coast of Ulleung-Do island (S. Korea), 558 km to the south. The data are analyzed for temporal correlation, time spread, and transmission loss and are interpreted in terms of a tomographic system for monitoring the East Sea. |
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