Vertical diffusion processes in the Eastern Mediterranean - Black Sea System

Sotiris Kioroglou; Elina Tragou; Vassilis Zervakis; Dimitris Georgopoulos; Barak Herut; Isaak Gertman; Vedrana Kovacevic; Emin Özsoy; Ersin Tutsak

doi:10.1016/j.jmarsys.2013.08.007

Vertical diffusion processes in the Eastern Mediterranean - Black Sea System

Sotiris Kioroglou, Elina Tragou, Vassilis Zervakis, Dimitris Georgopoulos, Barak Herut, Isaak Gertman, Vedrana Kovacevic, Emin Özsoy, Ersin Tutsak

Research output: Contribution to journal › Article › peer-review

Abstract

The identification and examination of 'complete' potential density overturns in CTD profiles, within the framework of SESAME project, are employed to assess vertical eddy diffusivities, mostly in the top 100. m of the water column, for a broad area covering the East Mediterranean, the Turkish Straits and the Black Sea. The implementation of this method shows that, mixing induced by mechanical turbulence is enhanced in frontal areas, in the proximity of straits and inside anticyclones; furthermore, that mechanical turbulence is insignificant, down to the scale of CTD resolution, within areas of double diffusive staircases, encountered in deep layers of the water column. Consequently, only laminar theories about double diffusion are applied for assessing diffusivities therein. Susceptibility to different types of double diffusion seems to be related to the interaction of different types of water masses.

Original language	English
Pages (from-to)	53-63
Number of pages	11
Journal	Journal of Marine Systems
Volume	135
DOIs	https://doi.org/10.1016/j.jmarsys.2013.08.007
State	Published - Jul 2014
Externally published	Yes

Bibliographical note

Funding Information:
This work has been conducted within the framework of the project ‘Southern European Seas: Assessing and Modeling Ecosystem changes (SESAME)’, funded by the European Union's sixth Framework Programme (FP6) , under the priority ‘Sustainable Development, Global Change and Ecosystems’, contract no. GOCE-2006-036949 .

Keywords

Black sea
Diffusion
Mediterranean
Mixing
Overturns
Thermohaline staircase

ASJC Scopus subject areas

Oceanography
Ecology, Evolution, Behavior and Systematics
Aquatic Science

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10.1016/j.jmarsys.2013.08.007

Cite this

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title = "Vertical diffusion processes in the Eastern Mediterranean - Black Sea System",

abstract = "The identification and examination of 'complete' potential density overturns in CTD profiles, within the framework of SESAME project, are employed to assess vertical eddy diffusivities, mostly in the top 100. m of the water column, for a broad area covering the East Mediterranean, the Turkish Straits and the Black Sea. The implementation of this method shows that, mixing induced by mechanical turbulence is enhanced in frontal areas, in the proximity of straits and inside anticyclones; furthermore, that mechanical turbulence is insignificant, down to the scale of CTD resolution, within areas of double diffusive staircases, encountered in deep layers of the water column. Consequently, only laminar theories about double diffusion are applied for assessing diffusivities therein. Susceptibility to different types of double diffusion seems to be related to the interaction of different types of water masses.",

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author = "Sotiris Kioroglou and Elina Tragou and Vassilis Zervakis and Dimitris Georgopoulos and Barak Herut and Isaak Gertman and Vedrana Kovacevic and Emin {\"O}zsoy and Ersin Tutsak",

note = "Funding Information: This work has been conducted within the framework of the project {\textquoteleft}Southern European Seas: Assessing and Modeling Ecosystem changes (SESAME){\textquoteright}, funded by the European Union's sixth Framework Programme (FP6) , under the priority {\textquoteleft}Sustainable Development, Global Change and Ecosystems{\textquoteright}, contract no. GOCE-2006-036949 . ",

year = "2014",

month = jul,

doi = "10.1016/j.jmarsys.2013.08.007",

language = "English",

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AU - Kioroglou, Sotiris

AU - Tragou, Elina

AU - Zervakis, Vassilis

AU - Georgopoulos, Dimitris

AU - Herut, Barak

AU - Gertman, Isaak

AU - Kovacevic, Vedrana

AU - Özsoy, Emin

AU - Tutsak, Ersin

N1 - Funding Information: This work has been conducted within the framework of the project ‘Southern European Seas: Assessing and Modeling Ecosystem changes (SESAME)’, funded by the European Union's sixth Framework Programme (FP6) , under the priority ‘Sustainable Development, Global Change and Ecosystems’, contract no. GOCE-2006-036949 .

PY - 2014/7

Y1 - 2014/7

N2 - The identification and examination of 'complete' potential density overturns in CTD profiles, within the framework of SESAME project, are employed to assess vertical eddy diffusivities, mostly in the top 100. m of the water column, for a broad area covering the East Mediterranean, the Turkish Straits and the Black Sea. The implementation of this method shows that, mixing induced by mechanical turbulence is enhanced in frontal areas, in the proximity of straits and inside anticyclones; furthermore, that mechanical turbulence is insignificant, down to the scale of CTD resolution, within areas of double diffusive staircases, encountered in deep layers of the water column. Consequently, only laminar theories about double diffusion are applied for assessing diffusivities therein. Susceptibility to different types of double diffusion seems to be related to the interaction of different types of water masses.

AB - The identification and examination of 'complete' potential density overturns in CTD profiles, within the framework of SESAME project, are employed to assess vertical eddy diffusivities, mostly in the top 100. m of the water column, for a broad area covering the East Mediterranean, the Turkish Straits and the Black Sea. The implementation of this method shows that, mixing induced by mechanical turbulence is enhanced in frontal areas, in the proximity of straits and inside anticyclones; furthermore, that mechanical turbulence is insignificant, down to the scale of CTD resolution, within areas of double diffusive staircases, encountered in deep layers of the water column. Consequently, only laminar theories about double diffusion are applied for assessing diffusivities therein. Susceptibility to different types of double diffusion seems to be related to the interaction of different types of water masses.

KW - Black sea

KW - Diffusion

KW - Mediterranean

KW - Mixing

KW - Overturns

KW - Thermohaline staircase

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EP - 63

JO - Journal of Marine Systems

JF - Journal of Marine Systems

ER -

Vertical diffusion processes in the Eastern Mediterranean - Black Sea System

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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