<div dir="ltr"><p class="MsoNormal" style="margin:0px;text-decoration-style:initial;text-decoration-color:initial;color:rgb(0,0,0);font-family:Calibri,sans-serif;font-size:14px"><span style="font-size:10.5pt">Dear CEDAR Community,<u></u><u></u></span></p><p class="MsoNormal" style="margin:0px;text-decoration-style:initial;text-decoration-color:initial;color:rgb(0,0,0);font-family:Calibri,sans-serif;font-size:14px"><span style="font-size:10.5pt"> </span></p><p class="MsoNormal" style="margin:0px;text-decoration-style:initial;text-decoration-color:initial;color:rgb(0,0,0);font-family:Calibri,sans-serif;font-size:14px"><span style="font-size:10.5pt">If you are planning to attend the 2018 AGU Fall Meeting, to be held<span> </span><span class="gmail-m_153281019354599811gmail-aBn" style="border-bottom:1px dashed rgb(204,204,204)"><span class="gmail-m_153281019354599811gmail-aQJ">10-14 December</span></span><span> </span>in Washington DC, we would like to bring your attention to the following special session in the SP-Aeronomy Section entitled "Data Assimilation in the Mesosphere, Thermosphere, and Ionosphere: Recent Progress and Future Challenges”. The session will serve as a forum for studies describing existing and upcoming observations of the mesosphere-thermosphere-ionosp<wbr>here (MTI) region from both ground-based instruments and satellite missions, with an emphasis on assimilation and/or validation of MTI data assimilation products. We also encourage submissions describing recent progress in development of data assimilation methods for the MTI region. A full description of this session can be found at <u></u><u></u></span></p><p class="MsoNormal" style="margin:0px;text-decoration-style:initial;text-decoration-color:initial;color:rgb(0,0,0);font-family:Calibri,sans-serif;font-size:14px"><span style="font-size:10.5pt"> </span></p><p class="MsoNormal" style="margin:0px;text-decoration-style:initial;text-decoration-color:initial;color:rgb(0,0,0);font-family:Calibri,sans-serif;font-size:14px"><a href="https://agu.confex.com/agu/fm18/prelim.cgi/Session/49968" target="_blank" style="color:rgb(17,85,204);background-color:rgb(255,255,255)">https://agu.confex.com/agu/<wbr>fm18/prelim.cgi/Session/49968</a><br></p><p class="MsoNormal" style="margin:0px;text-decoration-style:initial;text-decoration-color:initial;color:rgb(0,0,0);font-family:Calibri,sans-serif;font-size:14px"><u></u> <u></u></p><p class="MsoNormal" style="margin:0px;text-decoration-style:initial;text-decoration-color:initial;color:rgb(0,0,0);font-family:Calibri,sans-serif;font-size:14px"><span style="font-size:10.5pt">Please forward this announcement to other researchers that may be interested in this session, but are not on this email list. <u></u><u></u></span></p><p class="MsoNormal" style="margin:0px;text-decoration-style:initial;text-decoration-color:initial;color:rgb(0,0,0);font-family:Calibri,sans-serif;font-size:14px"><span style="font-size:10.5pt"> </span></p><p class="MsoNormal" style="margin:0px;text-decoration-style:initial;text-decoration-color:initial;color:rgb(0,0,0);font-family:Calibri,sans-serif;font-size:14px"><span style="font-size:10.5pt">Best wishes from the session co-chairs,<u></u><u></u></span></p><p class="MsoNormal" style="margin:0px;text-decoration-style:initial;text-decoration-color:initial;color:rgb(0,0,0);font-family:Calibri,sans-serif;font-size:14px"><span style="font-size:10.5pt"> </span></p><p class="MsoNormal" style="margin:0px;text-decoration-style:initial;text-decoration-color:initial;color:rgb(0,0,0);font-family:Calibri,sans-serif;font-size:14px"><span style="font-size:10.5pt">John McCormack, Kayo Ide, Nick Pedatella, and Gunter Stober</span></p><br></div>