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<p class="MsoNormal"><span style="color:black">Dear Colleagues,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">We would like to invite you to submit abstracts to the </span><b><span style="color:#1603FF">“ST24. Advances in the Understanding of Equatorial and Low Latitude Ionosphere-Thermosphere System Processes Through
Observations and Modeling”</span></b><span style="color:black"> Session at the <b>
AOGS2023 Annual Meeting</b>. </span><span style="font-size:14.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> </span><span style="font-size:14.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><b><i><u><span style="color:black">Session Description:</span></u></i></b><b><i><span style="color:black"> </span></i></b><i><span style="color:black"><o:p></o:p></span></i></p>
<p class="MsoNormal"><span style="color:black">The equatorial and low latitude ionosphere-thermosphere (IT) system is governed through various dynamical processes and phenomena, such as the Equatorial Electrojet (EEJ), the Equatorial Ionization Anomaly (EIA),
or the Equatorial Temperature and Wind Anomaly (ETWA). In addition, the behavior of this IT system is influenced by solar forcing from above, thermospheric winds and thus the ionospheric dynamo, penetration and disturbance dynamo electric fields during geomagnetic
storms and magnetospheric substorms, atmospheric wave activities from below, and traveling atmospheric/ionospheric disturbances (TADs/TIDs) from mid/high latitudes. These factors along with small-scale processes result in various ionospheric irregularities
so-called Equatorial Plasma Bubble (EPB) and evoking radio scintillations. Further, particular background conditions, such as magnetic declination vs. terminator alignment, geomagnetic activities, or wave activity regulate their morphology and variability.
Determining these conditions and understanding their interactions have challenged the research community for decades. Recently, satellite (e.g. GOLD, ICON, COSMIC, Swarm, etc.) and ground-based measurements and modeling studies (global IT-coupling models and
regional high-resolution numerical models) have revealed several new and interesting features about the formation and variability of the EEJ, EIA, EPBs, and scintillations.
</span><span style="color:red">This session solicits presentations related to space and ground-based measurements and modeling efforts that contribute to a better understanding of the equatorial- and low-latitude IT system. Studies of equatorial phenomena extending
to middle and high latitudes are also welcome.</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">The abstract submission due date is </span><b><span style="color:#1603FF">Feb. 14, 2023</span></b><b><span style="color:black">.</span></b><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="color:black">Conveners:</span></b><span style="color:black"> Deepak Kumar Karan, Yuichi Otsuka, Sumanta Sarkhel, Tulasi Ram Sudarsanam, and Endawoke Yizengaw <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:black">If you have any questions, please do not hesitate to contact us.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:black">Sincerely,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Deepak K Karan, on behalf of the conveners</span><o:p></o:p></p>
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