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<p><font face="Times New Roman, Times, serif">These talks are
usually scheduled for the first Monday of each month. The first
talk normally starts at 11:00AM. Each talk is typically 12
minutes long (similar to many professional meetings), with 8
minutes for questions.</font><br>
</p>
<p><font face="Times New Roman, Times, serif">The seminar series in
now in a hybrid talk format where the speakers are encouraged to
in-person at COAPS, but on-line talks are acceptable. In person
and on-line talks can be attended via Zoom: </font><br>
</p>
<font face="Times New Roman, Times, serif"></font><a class="moz-txt-link-freetext" href="https://fsu.zoom.us/j/97668135992?pwd=Sy9sTFJKNUNobnJZc29nd25DVjkzZz09">https://fsu.zoom.us/j/97668135992?pwd=Sy9sTFJKNUNobnJZc29nd25DVjkzZz09</a><br>
<br>
Meeting ID: 976 6813 5992<br>
Passcode: 038391
<p>Feb. 6th </p>
<p>Christopher Love: Inverse Barometer Effect on Tide Departure in
Coastal Southeast US</p>
<p>Description: Fort Pulaski, GA and Charleston, SC are two major
shipping and economic hubs in the coastal Southeast US that have
been found to be extremely sensitive to sea level height
perturbations, resulting in dozens of flooding events per year.
For both sites, within each recorded flood event, the magnitudes
of the inverse barometer effect are calculated and correlated to
the tidal forecast errors at corresponding time steps.</p>
<p>Subrat Kumar Mallick: <span lang="EN-US">Can Air-sea
bulk formulations improve the ocean circulation model?</span></p>
<p>Description: <span lang="EN-US">Fluxes are
the key driver for ocean circulation and energy distribution.
The selection of
advanced bulk formulation in the circulation model reflects the
actual state
plus a better understanding of weather and climate, as well as
improved forecasts.
The talk will describe progressive improvement in the ~10 km
Regional Ocean Circulation model (i.e., MOM3) by switching over
different bulk flux
formulations. </span><span style="font-family: Calibri, Arial,
Helvetica, sans-serif; font-size: 12pt;"> </span></p>
<p>Takaya Uchida: Is there any hope in the mesoscale eddy transport
tensor in parametrizing sub-grid eddy dynamics?</p>
<p style="margin: 0px; font-stretch: normal; line-height: normal;">Description:
<span style="font-kerning: none">Due to computational constraints,
the model resolution of global- and basin-scale ocean
simulations are often restricted to 1-1/10 degrees in latitude
and longitude (equivalent to 100-10 km resolution). This
resolution is barely sufficient to resolve the storm system of
the ocean on the scale of tens of kilometers, coined as
mesoscale eddies. Nonetheless, it is now accepted in the field
of ocean modeling that resolving these eddies leads to a more
realistic representation of the ocean circulation and oceanic
heat transport. There has, therefore, been an active effort to
design sub-grid parametrizations to mimic the dynamical effect
of eddies otherwise resolved under sufficient model resolution.</span></p>
<p style="margin: 0px; font-stretch: normal; line-height: normal;
min-height: 14px;">
<span style="font-kerning: none"></span><br>
</p>
<p style="margin: 0px; font-stretch: normal; line-height: normal;"><span style="font-kerning: none">In the literature of eddy
parametrization, it is common to relate the (sub-grid) eddy
fluxes to the gradients of the resolved field via a scalar
parameter, often referred to as eddy diffusivity and/or
transport coefficient. This stems from the works by Redi (1982)
and Gent and McWilliams (1990) known as the Redi isopycnal
tracer transport coefficient and GM skew transport coefficient.
A natural extension to this has been to replace the scalar
coefficients with a tensor form, which allows us to incorporate
the information of anisotropy in the flow. Here, I will provide
an overview on eddy parametrizations in an oceanic context,
present the tensor within the thickness-weighted averaged
framework, a framework apt for the vertically stratified nature
of the ocean, diagnosed from an eddying (1/12 degree) ensemble
of the North Atlantic and idealized eddy-resolving double-gyre
ensemble, and its utility in reconstructing the eddy flux of
passive and active tracers such as potential vorticity.</span></p>
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