<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height:normal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif"">Dear
colleagues,</span></p>
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height:normal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black">We would like to bring to your attention the upcoming CEDAR
workshop titled "<span class="apple-style-span"><b>Thermosphere-ionosphere
coupling and the development of irregularities</b>" and encourage your
participation. A workshop agenda is given below:</span></span></p>
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height:normal"><b style><span style="font-size:12.0pt;font-family:"Times New Roman","serif""> </span></b></p>
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height:normal"><b style><span style="font-size:12.0pt;font-family:"Times New Roman","serif"">June 26, Tuesday (1:30-3:30 PM) -
Anasazi N<span style> </span></span></b></p>
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height:normal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:blue">Presenting Authors/Title of presentations:<span style> </span><span style> </span><span style> </span></span></p>
<p class="MsoListParagraphCxSpMiddle" style="margin-bottom:0.0001pt;line-height:normal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black"><span style>1<span style="font:7.0pt "Times New Roman"">
</span></span></span><span style="font-size:12pt;font-family:"Times New Roman","serif";color:black">Dr. Mike. C. Kelley:<span style> </span>Thunderstorm generation of gravity waves
which reach the thermosphere and seed long wavelength.</span></p><p class="MsoListParagraphCxSpMiddle" style="margin-bottom:0in;margin-bottom:.0001pt;line-height:normal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black"><span style>2<span style="font:7.0pt "Times New Roman"">
</span></span></span><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black">Dr. <span style> </span>J. D. Huba:<span style>
</span>Gravity wave seeding of ESF Bubbles.</span></p>
<p class="MsoListParagraphCxSpMiddle" style="margin-bottom:0in;margin-bottom:.0001pt;line-height:normal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black"><span style>3<span style="font:7.0pt "Times New Roman"">
</span></span></span><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black">Dr.<span style> </span>Dave. Hysell: </span><span style="font-size:12.0pt;font-family:"Times New Roman","serif"">Intermediate- and small-scale
structure in irregular midlatitude sporadic E layers due to neutral and plasma
instability. </span><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black"></span></p>
<p class="MsoListParagraphCxSpMiddle" style="margin-bottom:0in;margin-bottom:.0001pt;line-height:normal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black"><span style>4<span style="font:7.0pt "Times New Roman"">
</span></span></span><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black">Dr.<span style> </span>Yakov Dimant:<span style>
</span>Modeling small-scale plasma density irregularities associated with
equatorial spread F.</span></p>
<p class="MsoListParagraphCxSpMiddle" style="margin-bottom:0in;margin-bottom:.0001pt;line-height:normal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black"><span style>5<span style="font:7.0pt "Times New Roman"">
</span></span></span><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black">Mr. Henrique
Aveiro:<span style> </span>3-D numerical simulations of
equatorial spread F. </span></p>
<p class="MsoListParagraphCxSpMiddle" style="margin-bottom:0in;margin-bottom:.0001pt;line-height:normal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black"><span style>6<span style="font:7.0pt "Times New Roman"">
</span></span></span><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black">Dr. Fabio Vargas: Observations
of EPBs in Greenline nightglow images from Andes Liadar Observatory</span></p>
<p class="MsoListParagraphCxSpMiddle" style="margin-bottom:0in;margin-bottom:.0001pt;line-height:normal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black"><span style> </span><b style><span style> </span></b></span></p>
<p class="MsoListParagraphCxSpLast" style="margin-top:0in;margin-right:0in;margin-bottom:0in;margin-left:31.5pt;margin-bottom:.0001pt;line-height:normal"><b style><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black">June 29, Friday (10:00-12:00 PM) –
Zia</span></b></p>
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height:normal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:blue">Presenting Authors/Title of presentations:<span style> </span></span></p>
<p class="MsoNormal" style="margin-top:0in;margin-right:0in;margin-bottom:0in;margin-left:31.5pt;margin-bottom:.0001pt;line-height:normal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black">1<span style> </span>Dr. John
Meriwether: <span style> </span>The comparison of ionosonde
results with simultaneous FPI measurements of winds and temperatures.</span></p>
<p class="MsoNormal" style="margin-top:0in;margin-right:0in;margin-bottom:0in;margin-left:31.5pt;margin-bottom:.0001pt;line-height:normal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black">2 <span style> </span>Dr.
Ethan. Miller: Topside Signature of Medium-Scale Wave</span></p>
<p class="MsoNormal" style="margin-top:0in;margin-right:0in;margin-bottom:0in;margin-left:31.5pt;margin-bottom:.0001pt;line-height:normal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black">3<span style> </span>Dr.
Narayan Chapagain: Comparison of zonal neutral winds with EPBs and plasma
drifts velocities. </span></p>
<p class="MsoNormal" style="margin-top:0in;margin-right:0in;margin-bottom:0in;margin-left:31.5pt;margin-bottom:.0001pt;line-height:normal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black">4<span style> </span>Dr.
Robert F. Pfaff: <span style> </span>Update on C/NOFS
observations of Ionospheric Irregularities During Periods of Increased Solar
Activity.</span></p>
<p class="MsoNormal" style="margin-top:0in;margin-right:0in;margin-bottom:0in;margin-left:31.5pt;margin-bottom:.0001pt;line-height:normal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black">5<span style> </span>Dr.
Guiping Liu: Periodic variability of the atmosphere and ionosphere:<span style> </span>planetary wave impacts on scintillations.</span></p>
<p class="MsoNormal" style="margin-top:0in;margin-right:0in;margin-bottom:0in;margin-left:31.5pt;margin-bottom:.0001pt;line-height:normal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black">6<span style> </span>Capt.
Melanie Huffman: Planning to build an equatorial VHF coherent backscatter radar
in the African sector.</span></p>
<p class="MsoListParagraph" style="margin-top:0in;margin-right:0in;margin-bottom:0in;margin-left:31.5pt;margin-bottom:.0001pt;line-height:normal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black"> </span></p>
<p class="MsoNormal" style="margin-top:0in;margin-right:0in;margin-bottom:0in;margin-left:31.5pt;margin-bottom:.0001pt;line-height:normal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif"">Conveners:<br>
*Dr. Narayan P. Chapagain, University of Illinois at Urbana-Champaign, IL, <a href="mailto:chapagai@illinois.edu" target="_blank">chapagai@illinois.edu</a><br>
*Dr. Jonathan J. Makela, University of Illinois at Urbana-Champaign, IL <a href="mailto:jmakela@illinois.edu" target="_blank">jmakela@illinois.edu</a><br>
*Dr. John W. Meriwether, Clemson University, SC, <a href="mailto:meriwej@clemson.edu" target="_blank">meriwej@clemson.edu</a><span class="MsoHyperlink"></span></span></p>
<p class="MsoNormal" style="margin-top:0in;margin-right:0in;margin-bottom:0in;margin-left:31.5pt;margin-bottom:.0001pt;line-height:normal"><span class="MsoHyperlink"><span style="font-size:12.0pt;font-family:"Times New Roman","serif""><span style="text-decoration:none"> </span></span></span></p>
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height:normal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif"">Description:
Knowledge of the coupling between the thermosphere and ionosphere<br>
(TI) associated with the F-region dynamo is important for understanding the<br>
dynamics and the structure of the low-latitude F-region ionosphere and<br>
thermosphere. Several ongoing ground and space based experiments providing<br>
observations of the TI at low-latitudes provide a new opportunity to study the<br>
coupling between the neutral atmosphere and the ionosphere and how these<br>
interactions can lead to the development of irregularities. This workshop<br>
solicits contributions to address the most recent experimental results from
both<br>
ground- and space-based observations. Also of interest would be contributions<br>
describing simulation and modeling results related to such TI coupling.
Papers<br>
describing the development of ionospheric irregularities as well as effects<br>
caused by the coupling between the ionosphere and neutral atmosphere would<br>
certainly be welcomed.</span></p>
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height:normal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif""> </span></p>
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height:normal"><span class="apple-style-span"><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black">Best regards,</span></span><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black"><br>
<span class="apple-style-span">Dr. Narayan Chapagain</span><br>
<span class="apple-style-span">University of Illinois at Urbana-Champaign</span><br>
<span class="apple-style-span">Urbana IL 61801</span></span></p>
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height:normal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif""><a href="mailto:chapagai@illinois.edu">chapagai@illinois.edu</a><span class="apple-style-span"><span style="color:black"></span></span></span></p>
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height:normal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif""> </span></p>