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<p class="MsoNormal"><span style="font-size:12.0pt;color:#212121">Dear Colleagues,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:#212121"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:#212121">You are invited to participate in the
<i><a href="https://cedarscience.org/workshop/2023-workshop-coupling-between-stratospheric-polar-vortex-and-ionosphere-thermosphere">‘Coupling between the Stratospheric Polar Vortex (SPV) and the Ionosphere-Thermosphere-Mesosphere (ITM)’</a></i> session at
the 2023 CEDAR Workshop. The session is scheduled for Thursday, June 29, from 1:30 PM to 3:30 PM (PDT) in Room West Coast.<o:p></o:p></span></p>
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<span style="font-size:12.0pt;color:#212121"><o:p> </o:p></span></p>
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<span style="font-size:12.0pt;color:#212121">Through tutorial talks, recent science results, and discussions this session welcomes modeling and observational investigations that explore the coupling between terrestrial weather and the ITM system across scales,
particularly during times of altered SPV. Most relevant contributions will address: (1) What are the impacts on the ITM system from terrestrial weather associated with altered SPV conditions? How do they depend on the strength of the polar vortex? How do they
vary with altitude and geographic region? (2) What are the primary physical mechanisms that connect SPV variability with ITM variability? What are the temporal and spatial scales most relevant for this coupling? What are the comparative roles of tides, gravity
waves, planetary waves, and ultra-fast Kelvin waves in this forcing? What are the effects of solar and geomagnetic preconditioning in the coupling? (3) How well do state-of-the-art models perform across different spatio-temporal scales and what is the impact
of data assimilation on model performance?<o:p></o:p></span></p>
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<span style="font-size:12.0pt;color:#212121"> <o:p></o:p></span></p>
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<span style="font-size:12.0pt;color:#212121">Interested speakers are encouraged to contact Federico Gasperini (<a href="mailto:federico.gasperini@orionspace.com" title="mailto:federico.gasperini@orionspace.com"><span style="color:#0078D7">federico.gasperini@orionspace.com</span></a>)
or one of the co-convenors by next Thursday, May 18, and indicate whether they plan to be attending in person or remotely. Student and early-career talks are particularly welcome.<o:p></o:p></span></p>
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<span style="font-size:12.0pt;color:#212121"> <o:p></o:p></span></p>
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<span style="font-size:12.0pt;color:#212121">We look forward to your attendance and contributions!<o:p></o:p></span></p>
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<span style="font-size:12.0pt;color:#212121"> <o:p></o:p></span></p>
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<span style="font-size:12.0pt;color:#212121">Best regards,<o:p></o:p></span></p>
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<span style="font-size:12.0pt;color:#212121">Federico Gasperini, on behalf of </span>
<span style="font-size:12.0pt;color:#2A2A2A;mso-ligatures:none">Larisa Goncharenko</span><span style="font-size:12.0pt;color:#212121">,
</span><span style="font-size:12.0pt;color:#2A2A2A;mso-ligatures:none">Mack Jones</span><span style="font-size:12.0pt;color:#212121">,
</span><span style="font-size:12.0pt;color:#2A2A2A;mso-ligatures:none">Nick Pedatella</span><span style="font-size:12.0pt;color:#212121">,
</span><span style="font-size:12.0pt;color:#2A2A2A;mso-ligatures:none">Katelynn Greer</span><span style="font-size:12.0pt;color:#212121">,
</span><span style="font-size:12.0pt;color:#2A2A2A;mso-ligatures:none">Tarique Siddiqui</span><span style="font-size:12.0pt;color:#212121">,
</span><span style="font-size:12.0pt;color:#2A2A2A;mso-ligatures:none">Zishun Qiao</span><span style="font-size:12.0pt;color:#212121">, and
</span><span style="font-size:12.0pt;color:#2A2A2A;mso-ligatures:none">Katrina Bossert</span><span style="font-size:12.0pt;color:#212121"><o:p></o:p></span></p>
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