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<p class="xmsonormal" style="margin:0in;margin-bottom:.0001pt"><span style="color:black">Dear Colleagues,<o:p></o:p></span></p>
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<span style="color:black"> <o:p></o:p></span></p>
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<span style="font-size:11.0pt;color:black">We would like to invite you to submit an abstract to the
</span><b><span style="font-size:11.0pt;color:#1603FF">“SA004. Advances in the Understanding of the Equatorial Ionization Anomaly (EIA) and Ionospheric Irregularities (e.g., Scintillations, Equatorial Plasma Bubbles, Spread-F) Using Measurements and Modeling”</span></b><span style="font-size:11.0pt;color:black">
Session at the 2022 Fall AGU Meeting. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black"><o:p> </o:p></span></p>
<p class="xmsonormal" style="margin:0in;margin-bottom:.0001pt"><b><u><span style="color:black">Session Description:</span></u></b><span class="apple-converted-space"><b><span style="color:black"> <o:p></o:p></span></b></span></p>
<p class="xmsonormal" style="margin:0in;margin-bottom:.0001pt"><span style="color:black">Equatorial Ionization Anomaly (EIA) and ionospheric irregularities (e.g., Scintillations, Equatorial Plasma Bubbles, Spread-F) have been a major focus of the ionospheric
research community. The behavior of the Ionosphere-Thermosphere system is influenced by solar forcing from above, wave activity from below, traveling atmospheric/ionospheric disturbances (TADs/TIDs) from mid/high latitudes, and the equatorial dynamo process.
These factors manifest various thermospheric and ionospheric irregularities. Further, the geomagnetic field geometry (such as magnetic declination angle, terminator alignment), geomagnetic activity, and winds regulate the morphology and variability of EIA
and irregularities. Determining these conditions and understanding their interactions have challenged the research community for decades. New satellite measurements (GOLD, ICON, COSMIC 2) and modeling approaches are revealing new, interesting characteristics
about the EIA variability and ionospheric irregularities. </span><span style="color:#C00000">This session invites presentations related to space and ground-based measurements and modeling efforts that contribute to a better understanding of the development
and variability of the EIA and ionospheric irregularities.</span><b><span style="color:black"><o:p></o:p></span></b></p>
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<span style="color:black"> <o:p></o:p></span></p>
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<span style="color:black">The abstract submission deadline is</span><span class="apple-converted-space"><span style="color:black"> </span></span><b><span style="color:black">Aug. 3, 2022.</span></b><span style="color:black"><o:p></o:p></span></p>
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<span style="color:black"> <o:p></o:p></span></p>
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<span style="color:black">If you have any questions, please do not hesitate to contact us. We look forward to meeting you at 2022 Fall AGU meeting. <o:p></o:p></span></p>
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<span style="color:black"><o:p> </o:p></span></p>
<p class="xmsonormal" style="margin:0in;margin-bottom:.0001pt"><span style="color:black">Sincerely,<o:p></o:p></span></p>
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<span style="font-size:11.0pt;color:black">Deepak K Karan, Carlos R Martinis, Anthea Coster, Fabiano S Rodrigues</span><span style="font-size:11.0pt"><o:p></o:p></span></p>
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