Diapycnal Mixing in the Cape Ghir upwelling region

Diapycnal Mixing in the Cape Ghir upwelling region

Rodríguez-Santana, A. ... et. al.-- European Geosciences Union General Assembly 22-27 April 2012, Vienna, Austria.-- 1 page

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Main Authors: Rodríguez-Santana, Ángel, Emelianov, Mikhail, de la Fuente, P., Pelegrí, Josep Lluís
Format: póster de congreso biblioteca
Published: European Geosciences Union 2012-4-27
Online Access:http://hdl.handle.net/10261/94151
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spelling dig-icm-es-10261-941512019-03-26T10:52:37Z Diapycnal Mixing in the Cape Ghir upwelling region Rodríguez-Santana, Ángel Emelianov, Mikhail de la Fuente, P. Pelegrí, Josep Lluís Rodríguez-Santana, A. ... et. al.-- European Geosciences Union General Assembly 22-27 April 2012, Vienna, Austria.-- 1 page One oceanographic survey was carried out within a project multidisciplinary (PROMECA) from 18 to 29 October 2010 in the Canary Basin. During three days, Conductivity –Temperature depth (CTD), Expandable Bathytermograph (XBT) and Microstructure turbulence (free fall profilers: turboMAP and Baklán) data were obtained in several stations in the Cape Ghir upwelling region. Also during the cruise, velocity data were measured by a vessel Acoustic Doppler Current Profiler (ADCP) with a vertical bin size of 8 m. The first results show how the vertical distribution of the dissipation rate of turbulent kinetic energy, >, is modified by the filaments present in the region. These oceanographic structures intensify the vertical shear of the flow and modify the vertical gradients of temperature and salinity, thus influencing in the sources of mixing processes associated (Kelvin-Helmholtz instabilities and double diffusion). The > values found range between 10-7 and 10-10 W/kg in the first 500 m of the water column with maximum values near the surface or associated to the filaments. With the dissipation rates of thermal variance, , estimated from microstructure data, we are applying a model based in the dissipation ratio, ratio of the diffusivities for heat and buoyancy, to estimate the net turbulence diffusivities when processes of double diffusion and turbulence induced by vertical shear of the flow are present in the same region Peer Reviewed 2014-03-25T09:11:16Z 2014-03-25T09:11:16Z 2012-4-27 2014-03-25T09:11:16Z póster de congreso http://purl.org/coar/resource_type/c_6670 Geophysical Research Abstracts 14: EGU2012-9732-3 (2012) http://hdl.handle.net/10261/94151 1607-7962 http://meetingorganizer.copernicus.org/EGU2012/oral_programme/9295 open European Geosciences Union
institution ICM ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-icm-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del ICM España
description Rodríguez-Santana, A. ... et. al.-- European Geosciences Union General Assembly 22-27 April 2012, Vienna, Austria.-- 1 page
format póster de congreso
author Rodríguez-Santana, Ángel
Emelianov, Mikhail
de la Fuente, P.
Pelegrí, Josep Lluís
spellingShingle Rodríguez-Santana, Ángel
Emelianov, Mikhail
de la Fuente, P.
Pelegrí, Josep Lluís
Diapycnal Mixing in the Cape Ghir upwelling region
author_facet Rodríguez-Santana, Ángel
Emelianov, Mikhail
de la Fuente, P.
Pelegrí, Josep Lluís
author_sort Rodríguez-Santana, Ángel
title Diapycnal Mixing in the Cape Ghir upwelling region
title_short Diapycnal Mixing in the Cape Ghir upwelling region
title_full Diapycnal Mixing in the Cape Ghir upwelling region
title_fullStr Diapycnal Mixing in the Cape Ghir upwelling region
title_full_unstemmed Diapycnal Mixing in the Cape Ghir upwelling region
title_sort diapycnal mixing in the cape ghir upwelling region
publisher European Geosciences Union
publishDate 2012-4-27
url http://hdl.handle.net/10261/94151
work_keys_str_mv AT rodriguezsantanaangel diapycnalmixinginthecapeghirupwellingregion
AT emelianovmikhail diapycnalmixinginthecapeghirupwellingregion
AT delafuentep diapycnalmixinginthecapeghirupwellingregion
AT pelegrijoseplluis diapycnalmixinginthecapeghirupwellingregion
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