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Seminar this Friday April 19 at 10:45am in EOAS 6042 by Physical Oceanography faculty candidate Zihua Liu.</div>
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<b>Please note the odd starting time of 10:45am in EOAS 6042</b>. This is to ensure we can vacate the room promptly at noon for a class.</div>
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The title and abstract of her seminar are as follows: </div>
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"Life cycle of internal waves and potential implementation in the Arctic Ocean"</div>
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Internal waves are ubiquitous in the ocean, playing a crucial role by facilitating energy</div>
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transfer and vertical mixing, which regulate water properties and large-scale circulations.</div>
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These waves enhance nutrient transport that supports marine life and influences the dis-</div>
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tribution and behavior of marine organisms, impacting overall oceanic productivity and</div>
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ecological dynamics. We studied the generation and evolution of internal waves on the</div>
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continental shelf in order to better understand their life cycle. For the generation, horizon-</div>
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tal distribution of the barotropic-to-baroclinic energy conversion has been widely studied</div>
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to examine the generation of internal tides. The vertical structure that provides insights</div>
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into the dynamics of conversion, however, is masked by this depth-integrated energy con-</div>
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version. We reveal the vertical profile of energy conversion by employing an idealized</div>
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ocean model in a slope-shelf context forced by M2 barotropic tide. The model shows</div>
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two vertically separated hotspots of energy conversion, near the sloping bottom and at</div>
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the pycnocline. The generated internal tidal beams can incident onto a continental shelf,</div>
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and then its transition into modal internal tides, and the subsequent generation of on-</div>
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shore propagating internal solitary waves are investigated. Understanding characteristics</div>
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of internal waves can help us explore their impacts. From recent acoustic observations,</div>
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we found that the movement of mesopelagic fish is driven by internal waves, which was</div>
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unknown before.</div>
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<div style="font-family: Tahoma; font-size: 13px; color: rgb(153, 153, 153);">---</div>
<div style="font-family: Tahoma; font-size: 13px;"><span style="color: rgb(153, 153, 153);">Eric Chassignet</span>
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<div style="font-family: Tahoma; font-size: 13px; color: rgb(153, 153, 153);">Professor and Director</div>
<div style="font-family: Tahoma; font-size: 13px; color: rgb(153, 153, 153);">Center for Ocean-Atmospheric Prediction Studies (COAPS)</div>
<div style="font-family: Tahoma; font-size: 13px; color: rgb(153, 153, 153);">Florida State University</div>
<div style="font-family: Tahoma; font-size: 13px; color: rgb(153, 153, 153);">2000 Levy Avenue, Building A, Suite 292</div>
<div style="font-family: Tahoma; font-size: 13px; color: rgb(153, 153, 153);">P.O. Box 3062741</div>
<div style="font-family: Tahoma; font-size: 13px; color: rgb(153, 153, 153);">Tallahassee, FL 32306-2741</div>
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<div style="font-family: Tahoma; font-size: 13px; color: rgb(153, 153, 153);">Office : (1) 850-645-7288</div>
<div style="font-family: Tahoma; font-size: 13px; color: rgb(153, 153, 153);">COAPS : (1) 850-644-3846</div>
<div style="font-family: Tahoma; font-size: 13px; color: rgb(153, 153, 153);">Cell : (1) 850-524-0033 (urgent matters only)</div>
<div style="font-family: Tahoma; font-size: 13px; color: rgb(153, 153, 153);">FAX : (1) 850-644-4841</div>
<div style="font-family: Tahoma; font-size: 13px; color: rgb(153, 153, 153);">E-mail : echassignet@fsu.edu</div>
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