Identification of diapycnal mixing through optimum multiparameter analysis: 2. Evidence for unidirectional diapycnal mixing in the front between North and South Atlantic Central Water.

Klein, Birgit and Tomczak, Matthias (1994) Identification of diapycnal mixing through optimum multiparameter analysis: 2. Evidence for unidirectional diapycnal mixing in the front between North and South Atlantic Central Water. Open Access Journal of Geophysical Research: Oceans, 99 (C12). pp. 25275-25280. DOI 10.1029/94JC01948.

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JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 99, NO. C12, PAGES 25,275-25,280, DECEMBER 15, 1994.pdf - Reprinted Version

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Abstract

Optimum multiparameter (OMP) analysis is used to analyze mixing in the central water boundary of the tropical North Atlantic Ocean. Diapycnal mixing is found to be prevalent in the frontal region. OMP analysis shows that the mixing is unidirectional (South Atlantic Central Water is always mixed upward into North Atlantic Central Water) but cannot identify the process responsible for the observed diapycnal mixing. A histogram of stability ratios Rρ for all mixing lines shows Rρ values between unity and the value found in the parent water masses. It is suggested that this may indicate competition between isopycnal mixing and double diffusion. Double diffusive fluxes are likely to make a recognizable and significant contribution to diapycnal mixing between the Central Waters.

Document Type: Article
Research affiliation: OceanRep > Institute for Marine Science Kiel
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1029/94JC01948
ISSN: 2169-9275
Date Deposited: 17 Aug 2018 08:58
Last Modified: 17 Aug 2018 08:58
URI: http://oceanrep.geomar.de/id/eprint/44026

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