SEMINAR: reminder for amp student seminar this morning at 10 .

[areniers@rsmas.miami.edu]

HI All,

we will have our last amp student seminar for the semester with two
presentations in the AMP seminar room at 10. am.

Silvia Gremes Cordero:

AIR-SEA TURBULENT FLUXES CALCULATIONS IN HIGH WIND CONDITIONS: METHODS AND
LIMITATIONS

and

Laura Fiorentino

Pollution dispersal in the coastal ocean: a dynamical systems perspective

abstracts and titles below.

greetings,


Ad Reniers

In order to understand the effect of pollutants in the coastal ocean on
human health, it is necessary
to find the source of contaminants and track their transport through
the ocean. This study focuses
on Hobie Beach in Miami Dade County. Previous studies on water quality
have shown that Hobie
Beach has high microbial levels despite having no known point source.
Hobie Beach is in many ways
a typical urban, subtropical beach that is used for recreation and
bathing on a daily basis. Therefore,
any results derived from this location are likely applicable to other
beaches in the world that have high
microbial presence. In this study, dynamical systems methods are applied
to the study of transport
of enterococci as an indicator microbe in the vicinity of Hobie Beach.
Specifically, it is shown that
transport is controlled by a hidden Lagrangian skeleton.






AIR-SEA TURBULENT FLUXES CALCULATIONS IN HIGH WIND CONDITIONS: METHODS AND
LIMITATIONS


Turbulent air-sea fluxes of Momentum and Humidity during the North
Atlantic Plankton bloom of summer 2006 is presented. The data set is
unique in what contains measurements obtained during large wind speeds,
that is, over 20 m/sec. The data analyzed was obtained with an Eddy Flux
Tower mounted on board the R/V Celtic Explorer, consisting in a sonic
anemometer and a LICOR analyzer. Such instrumentation allows us to obtain
measurements of wind speed, air temperature, humidity content, and gas
concentration fluctuations.
The momentum fluxes were calculated with the direct Eddy Covariance, the
Bulk and the Inertial Dissipation method. The methods show similar
tendencies in the time series and comparable order of magnitudes,
reaffirming the usefulness of the methods and the instrumentation
accuracy. However, the influence of flow distortion can be deducted from
the results. Humidity fluxes were also calculated with the same methods,
giving useful input to the bulk coefficients used in the fluxes'
parameterization.
	The importance of air-sea fluxes and its proper parameterization is given
by its fundamental role in coupling atmospheric and oceanic models of
climate change prediction.





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