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<span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);" class=""><b class="">From:
</b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;" class="">William Burgess via SC-4th-Floor <<a href="mailto:sc-4th-floor@lists.fsu.edu" class="">sc-4th-floor@lists.fsu.edu</a>><br class="">
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<span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);" class=""><b class="">Subject:
</b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;" class=""><b class="">[4th-Floor] Virtual Tea and Colloquium with Cathrine Hancock 11/04</b><br class="">
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<span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);" class=""><b class="">Date:
</b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;" class="">November 2, 2020 at 7:36:47 AM EST<br class="">
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<span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);" class=""><b class="">To:
</b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;" class="">JESfwd-fsu-sc-seminar-announce <<a href="mailto:sc-seminar-announce@lists.fsu.edu" class="">sc-seminar-announce@lists.fsu.edu</a>>, JESfwd-fsu-sc-4th-floor
<<a href="mailto:sc-4th-floor@lists.fsu.edu" class="">sc-4th-floor@lists.fsu.edu</a>><br class="">
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<span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);" class=""><b class="">Reply-To:
</b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;" class="">William Burgess <<a href="mailto:wburgess@fsu.edu" class="">wburgess@fsu.edu</a>><br class="">
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<div style="margin-top: 0px; margin-bottom: 0px;" class="">The Department of Scientific Computing</div>
<div style="margin-top: 0px; margin-bottom: 0px;" class="">at Florida State University presents</div>
<p class="x_MsoNormal" style="margin-top: 0px; margin-bottom: 0px;"> </p>
<div style="margin-top: 0px; margin-bottom: 0px;" class="">Cathrine Hancock</div>
<div style="margin-top: 0px; margin-bottom: 0px;" class="">Geophysical Fluid Dynamics Institute</div>
<div style="margin-top: 0px; margin-bottom: 0px;" class="">Florida State University</div>
<p class="x_MsoNormal" style="margin-top: 0px; margin-bottom: 0px;"> </p>
<div style="margin-top: 0px; margin-bottom: 0px;" class="">“Slope Currents in the Northeastern Gulf of Mexico”</div>
<p class="x_MsoNormal" style="margin-top: 0px; margin-bottom: 0px;"> </p>
<div style="margin-top: 0px; margin-bottom: 0px;" class="">Wednesday, November 4, 2020</div>
<div style="margin-top: 0px; margin-bottom: 0px;" class="">Virtual Tea Time</div>
<div style="margin-top: 0px; margin-bottom: 0px;" class="">3:00 to 3:30 P.M. Eastern Time (U.S. and Canada)</div>
<div style="margin-top: 0px; margin-bottom: 0px;" class="">Virtual Colloquium</div>
<div style="margin-top: 0px; margin-bottom: 0px;" class="">3:30 to 4:30 P.M. Eastern Time (U.S. and Canada)</div>
<div style="margin-top: 0px; margin-bottom: 0px;" class="">Zoom Login<span class="Apple-converted-space"> </span><a href="https://fsu.zoom.us/j/94273595552" class="">https://fsu.zoom.us/j/94273595552</a></div>
<div style="margin-top: 0px; margin-bottom: 0px;" class="">See<span class="Apple-converted-space"> </span><a href="https://www.sc.fsu.edu/news-and-events/colloquium" class="">https://www.sc.fsu.edu/news-and-events/colloquium</a><span class="Apple-converted-space"> </span>for
details</div>
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<div style="margin-top: 0px; margin-bottom: 0px;" class="">Abstract:</div>
<div style="margin-top: 0px; margin-bottom: 0px;" class="">Subsurface float data, mooring data and output from a five-year numerical ocean model simulation were used to investigate the subsurface flow patterns in the northeastern Gulf of Mexico (GoM). The combination
of bathymetry, associated along-slope flows, and eddy activity sets the basic structure of the flow near 400m depth in the northeastern GoM. Years with persistent eastward or westward along-slope flow through De Soto Canyon (DSC) seed exit pathways into the
Atlantic or western GoM, generating increased Lagrangian dispersion from the eastern GoM. Though Loop Current instability is responsible for much of the eddy activity in the northeastern GoM, certain eastward flow patterns along the Louisiana-Mississippi slope
can produce cyclonic stationary eddies in DSC. This is due to the shape of the bathymetry within the canyon, created by the junction of the Mississippi-Alabama shelf with the West Florida Shelf. During periods of increased eddy activity in the northeastern
GoM, simulated particles spread more uniformly throughout the region, with reduced exchange outside the eastern GoM. There is an increase in particle recirculation in DSC whenever eddy activity is high. The canyon is a natural pathway for particle transport
across the slope, and recirculation in the canyon is also able to drive enhanced exchange of water masses between the deeper ocean and shelf waters locally. Large interannual variability is observed in eddy activity from the five-year model run, and this greatly
affects Lagrangian particle transport, serving as a proxy for fluxes between the deeper ocean and shelf waters.</div>
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