[Eoas-seminar] Seminar by Joe LaCasce "Rossby waves over bathymetry" Monday February 24 at COAPS at 2pm

[eoas-seminar at lists.fsu.edu]

My apologies - time was missing.

*2pm* Monday February 24

On 2/13/2025 2:01 PM, eoas-seminar--- via Eoas-seminar wrote:
> Please mark your calendars.
>
> Seminar by Joe LaCasce "Rossby waves over bathymetry" Monday February 
> 24 at *COAPS*
>
> *Abstract: *  Topography plays a central role in ocean dynamics, but 
> our intuition is nevertheless based largely on flat bottom models. 
> This includes aspects like the baroclinic modes used for representing 
> vertical structure and the character of baroclinic instability. A good 
> example is Rossby waves, whose vertical structure and stability are 
> both affected by bathymetry. Relatively modest topography causes the 
> waves to be surface-trapped, which in turn alters their deformation 
> radius and propagation speed. Rossby waves are also baroclinically 
> unstable and this too is altered by bathymetry. If the topographic 
> heights are large enough, energy is transferred directly to 
> topographically-locked flows rather than to the most unstable wave 
> found over a flat bottom. The resulting turbulent flow is also 
> affected by bathymetry, with the deep flow slaved to topography and 
> compensated surface eddies. The resulting flows strongly resemble 
> those in the ocean interior, with westward propagation at the surface 
> and deep gyres.
>
>
>
> ---
> Eric Chassignet
> Professor and Director
> Center for Ocean-Atmospheric Prediction Studies (COAPS)
> Florida State University
> 2000 Levy Avenue, Building A, Suite 292
> P.O. Box 3062741
> Tallahassee, FL  32306-2741
>
> Office : (1) 850-645-7288
> COAPS  : (1) 850-644-3846
> Cell   : (1) 850-524-0033 (urgent matters only)
> FAX    : (1) 850-644-4841
> E-mail : echassignet at fsu.edu
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-- 
Eric Chassignet
Professor and Director
Center for Ocean-Atmospheric Prediction Studies (COAPS)
Florida State University
2000 Levy Avenue, Building A, Suite 292
P.O. Box 3062741
Tallahassee, FL  32306-2741

Office : (1) 850-645-7288
COAPS  : (1) 850-644-3846
Cell   : (1) 850-524-0033 (urgent matters only)
FAX    : (1) 850-644-4841
E-mail :echassignet at fsu.edu
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