Observations of the velocity and vorticity structure of Gulf Stream meanders

Document Type

Article

Date of Original Version

1-1-1993

Abstract

In September-October 1988 and in April 1989 two 4-week cruises were organized. The first one focused on an anticyclonic crest, and the second one on a cyclonic trough, using a CTD and a continuously profiling acoustic Doppler current profiler (ADCP). The cross-stream sections of velocity exhibit the typical pattern of a single velocity maximum with a narrow zone of cyclonic shear and a broad region of anticyclonic shear. Shear vorticity greatly enhances -(f/p)dp/dz on the cyclonic side and weakens it to a distinct minimum in the center of the current at the crest. For the trough, the evidence suggests that the opposite is true. -from Authors

Publication Title, e.g., Journal

Journal of Physical Oceanography

Volume

23

Issue

2

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