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Upper-ocean velocity structure of Gulf Stream warm-core ring 82BAcoustic-Doppler current profiling of warm-core ring (WCR) 82B revealed changes in the velocity structure over much of the ring's 7-month lifespan. As ring diameter decreased, peak speeds in the high-velocity region decreased from 0.8 m/s in April 1982 to 0.5 m/s in August 1982. Azimuthally averaged velocities revealed the core of WCR 82B to be in near solid-body rotation, with little measurable horizontal divergence at 100 m. In addition, potential vorticity was conserved in the ring core despite interactions with the Gulf Stream and large changes in ring size. Deviations from symmetry in WCR 82B were caused by superposition with the shelf-slope front, small cyclonic eddies, and upper-layer mean flow.
Document ID
19850067703
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Joyce, T. M.
(Woods Hole Oceanographic Inst. MA, United States)
Kennelly, M. A.
(Woods Hole Oceanographic Institution MA, United States)
Date Acquired
August 12, 2013
Publication Date
September 20, 1985
Publication Information
Publication: Journal of Geophysical Research
Volume: 90
ISSN: 0148-0227
Subject Category
Oceanography
Accession Number
85A49854
Funding Number(s)
CONTRACT_GRANT: NSF OCE-80-16983
CONTRACT_GRANT: NAGW-272
Distribution Limits
Public
Copyright
Other

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