[Todos] [Coloquios] Coloquios DCAO/CIMA - HOY MIÉRCOLES 31/10 : "Meridional Overturning Circulation Variability at 34.5°S: The Dueling Influence of the Boundaries"

[Coloquios CIMA-DCAO]

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      Coloquios del Departamento de Ciencias de la Atmósfera y los 
Océanos (DCAO)/
               Centro de Investigaciones del Mar y la Atmósfera (CIMA)

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MIÉRCOLES 31/10, a las 13:00h.
Aula 8-DCAO, 2° Piso, Pabellón 2

"Meridional Overturning Circulation Variability at 34.5°S: The Dueling 
Influence of the Boundaries"

Dr. Christopher Meinen (Atlantic Oceanographic and Meteorological 
Laboratory, NOAA, Miami, USA)

In this talk I will describe six years of simultaneous moored 
observations near the western and eastern boundaries of the South 
Atlantic combined with satellite winds and produce a daily time series 
of the basin-wide meridional overturning circulation (MOC) volume 
transport at 34.5°S. The results demonstrate that barotropic and 
baroclinic signals at both boundaries cause significant transport 
variations, and as such must be concurrently observed. The data, 
spanning ~20 months during 2009–2010 and ~4 years during 2013–2017, 
reveal a highly energetic MOC record with a temporal standard deviation 
of 8.3 Sv, and strong variations at time scales ranging from a few days 
to years (peak-to-peak range = 54.6 Sv). Seasonal transport variations 
are found to have both semiannual (baroclinic) and annual (Ekman and 
barotropic) timescales. Interannual MOC variations result from both 
barotropic and baroclinic changes, with density profile changes at the 
eastern boundary having the largest impact on the year-to-year 
variations.

CV: http://www.aoml.noaa.gov/phod/people/meinen/index.php

¡¡Los esperamos!!

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Grupo de Coloquios DCAO/CIMA
Departamento de Ciencias de la Atmósfera y los Océanos (FCEN-UBA)
Centro de Investigaciones del Mar y la Atmósfera (CONICET-UBA)
Ciudad Universitaria, Pabellón II, 2do piso.
email: coloquios en cima.fcen.uba.ar
http://www.at.fcen.uba.ar/charlas_not.php
http://www.cima.fcen.uba.ar/coloquios.php
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