Data/hora: 06/06/2024 13:00:01

Provedor de dados: | 5
País: | France
Título: | Black Sea vertical circulation and extremes of the hydrochemical and hydrooptical parameters
Autores: | Bulgakov, Sn; Kushnir, Vm; Martinez, A.
Data: | 1999-07
Ano: | 1999
Palavras-chave: | Mer Noire; Circulation verticale; Chimie marine; Optique marine; Black Sea; Vertical circulation; Hydrochemistry; Hydrooptics.
Resumo: | A statistical evaluation of vertical current velocity profiles w(z) has been undertaken using data provided by current meter profilers. The calculation of profiles w(z) involves the estimation of the standard deviation of vertical current at each depth level, and the standard deviation of the statistical variability of that estimate. Profiles w(z) have been computed for the northwestern Black Sea, using current meter and CTD data from three surveys carried out during 1992-1994. The calculations show w(z) to have a two-layered structure, with zero values occurring in the main pycnocline. Such vertical current structures are consistent with a hydrodynamic model, whereby the current field is induced by buoyancy fluxes through the lateral basin boundaries. Existence of zero vertical current velocities at the pycnoclines yields the key to understanding the mechanisms responsible for the oxic-anoxic interface, and of the zones with steep vertical gradients in hydrochemical and hydrooptical characteristics.
Tipo: | Text
Idioma: | Inglês

Identificador:

http://archimer.ifremer.fr/doc/00325/43602/43921.pdf

DOI:10.1016/S0399-1784(00)88721-6

http://archimer.ifremer.fr/doc/00325/43602/

Editor: | Gauthier-villars/editions Elsevier
Formato: | application/pdf
Fonte: | Oceanologica Acta (0399-1784) (Gauthier-villars/editions Elsevier), 1999-07 , Vol. 22 , N. 4 , P. 367-380

Fonte:

Elsevier, Paris / Ifremer / CNRS / IRD

info:eu-repo/semantics/openAccess

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