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Ocean acoustic tomography - Travel time biasesThe travel times of acoustic rays traced through a climatological sound-speed profile are compared with travel times computed through the same profile containing an eddy field. The accuracy of linearizing the relations between the travel time difference and the sound-speed deviation at long ranges is assessed using calculations made for two different eddy fields measured in the eastern Atlantic. Significant nonlinearities are found in some cases, and the relationships of the values of these nonlinearities to the range between source and receiver, to the anomaly size associated with the eddies, and to the positions of the eddies are studied. An analytical model of the nonlinearities is discussed.
Document ID
19850041514
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Spiesberger, J. L. (Woods Hole Oceanographic Institution, Woods Hole; MIT, Cambridge MA, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1985
Publication Information
Publication: Acoustical Society of America, Journal
Volume: 77
ISSN: 0001-4966
Subject Category
OCEANOGRAPHY
Report/Patent Number
AD-A153571
AD-A211764
Funding Number(s)
CONTRACT_GRANT: N00014-77-C-0641
CONTRACT_GRANT: NSG-1323
CONTRACT_GRANT: ET-78-C-02-4687
CONTRACT_GRANT: F49620-79-C-020
CONTRACT_GRANT: NSF OCE-80-17309
CONTRACT_GRANT: N00014-82-C-0019
Distribution Limits
Public
Copyright
Other