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<font style="font-family:arial,sans-serif,serif,EmojiFont">Dear Colleagues,</font></p>
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<font style="font-family:arial,sans-serif,serif,EmojiFont">Please submit abstracts to the 2021 AGU Fall Meeting SA022 Session on Traveling Ionospheric Disturbances. The link to the session is: <a href="https://agu.confex.com/agu/fm21/prelim.cgi/Session/125340" class="OWAAutoLink" id="LPlnk248156" previewremoved="true">https://agu.confex.com/agu/fm21/prelim.cgi/Session/125340</a></font></p>
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The abstract submission deadline is: <span style="font-family:arial,sans-serif,serif,EmojiFont; font-size:15px; text-align:justify">Wednesday, 04 August 2021 at 23:59 EDT/03:59+1 GMT.</span></p>
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<font face="arial, sans-serif, serif, EmojiFont"><span style="color:rgb(38,38,38); font-family:Roboto,sans-serif; font-size:14px">This session will focus on the identification and source differentiation of traveling ionospheric disturbances (TIDs), which are
 frequently observed in the ionosphere at all latitudes and longitudes. TIDs can be driven from above by solar and magnetospheric disturbances, or driven from below by lower atmospheric and surface forcing, including but not limited to tropospheric weather
 events (hurricanes, tornadoes, tropical cyclones, thunderstorms, etc.), earthquakes, tsunamis, volcanic eruptions, explosions, and spacecraft launches. TIDs generated from different types of sources may exhibit similar or very different characteristics in
 their spatial and temporal scales, periodicities, propagation speeds and directions. Meanwhile, TIDs generated from the same type of sources may exhibit different characteristics depending on the local ionospheric conditions. Therefore, it remains a challenge
 to distinguish TIDs from different types of sources in ionospheric observations. We solicit theoretical, observational, and modeling contributions on better understanding of the origins, generation mechanisms, and characteristics of TIDs.</span></font><br>
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<font style="font-family:arial,sans-serif,serif,EmojiFont">Conveners: Kate Zawdie, US Naval Research Laboratory</font></p>
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<font style="font-family:arial,sans-serif,serif,EmojiFont">                   Jeffrey Klenzing, NASA Goddard Space Flight Center</font></p>
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<font style="font-family:arial,sans-serif,serif,EmojiFont">                   Stephen Roland Kaeppler, Clemson University</font></p>
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<font style="font-family:arial,sans-serif,serif,EmojiFont">                   Xing Meng, NASA Jet Propulsion Laboratory</font></p>
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<font style="font-family:arial,sans-serif,serif,EmojiFont">          </font></p>
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<font style="font-family:arial,sans-serif,serif,EmojiFont">We look forward to seeing you in New Orleans or online!</font></p>
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<font style="font-family:arial,sans-serif,serif,EmojiFont">Thank you.</font></p>
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<font style="font-family:arial,sans-serif,serif,EmojiFont">Sincerely,</font></p>
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<font face="arial, sans-serif, serif, EmojiFont">Kate, Jeff, Steve and Xing</font></p>
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