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<p class="MsoNormal" style="text-align:justify"><span style="font-family:"Times New Roman",serif;color:black">Dear Colleagues,</span><span style="font-family:"Times New Roman",serif;color:black;mso-fareast-language:EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-align:justify"><span style="font-family:"Times New Roman",serif;color:black"> <o:p></o:p></span></p>
<p class="MsoNormal" style="text-align:justify"><span style="font-family:"Times New Roman",serif;color:black">We invite you to contribute your work to the 2025 AOGS Annual Meeting session
<b>(ST08) -</b> </span><b><span style="font-family:"Times New Roman",serif">Auroral Dynamics and their impact on the geospace system</span></b><span style="font-family:"Times New Roman",serif">.
</span><span style="font-family:"Times New Roman",serif;color:black"> The meeting will be held in Marina Bay Sands, Singapore from July 27th to August 1st, 2025. The abstract deadline is February 18, 2025.
<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align:justify"><span style="font-family:"Times New Roman",serif;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align:justify"><span style="font-family:"Times New Roman",serif;color:black">Submission link:
<a href="https://www.asiaoceania.org/aogs2025/public.asp?page=submissions.asp#SA">
https://www.asiaoceania.org/aogs2025/public.asp?page=submissions.asp#SA</a><o:p></o:p></span></p>
<p class="MsoNormal" style="text-align:justify"><span style="font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align:justify"><span style="font-family:"Times New Roman",serif">Session description:<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align:justify"><span style="font-family:"Times New Roman",serif">Auroral precipitation is the result of coupling among the solar wind and geospace system which includes the ionosphere, thermosphere and magnetosphere (ITM). Dynamics
in auroral particle precipitation reveals the physical processes in the magnetosphere and its response to the solar wind variations. The auroral dynamics also alters ionospheric and thermospheric conditions through photo-chemical, momentum transfer, and heating
processes. These processes create a strong feedback effect on ITM system and thus modify auroral activities. This session welcomes all contributions on auroral and related ITM observations, theories and modeling studies under different geophysical conditions
(geomagnetic activity, season, solar cycle and hemispheric dependence). <o:p></o:p></span></p>
<p class="MsoNormal" style="text-align:justify"><span style="font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align:justify"><span style="font-family:"Times New Roman",serif">Sincerely,<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align:justify"><span style="font-family:"Times New Roman",serif">Yongliang Zhang, Lei Cai, and Keisuke Hosokawa<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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