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Dear Colleagues,</div>
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We invite you to submit an abstract to the 2025 AGU Fall Meeting Session: <i>SA023 - Whole-Atmosphere Coupling and Ionosphere-Thermosphere-Magnetosphere Responses to Terrestrial and Space Weather Forcing</i>. The meeting will be held in New Orleans, LA, December
15-19, 2025, in a hybrid format.</div>
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<b>Session Details: </b></div>
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Session Title: SA023 - Whole-Atmosphere Coupling and Ionosphere-Thermosphere-Magnetosphere Responses to Terrestrial and Space Weather Forcing</div>
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Section: SPA-Aeronomy</div>
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Session Link: <a href="https://agu.confex.com/agu/agu25/prelim.cgi/Session/247350" id="OWA8b86611a-e6ad-fbcd-2d5d-54a436e4226a" class="OWAAutoLink">
https://agu.confex.com/agu/agu25/prelim.cgi/Session/247350</a> </div>
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Primary Convener: Federico Gasperini, Orion Space Solutions</div>
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Conveners: Xian Lu, Clemson University; Shantanab Debchoudhury, Embry-Riddle Aeronautical University; Xueling Shi, Virginia Polytechnic Institute and State University; Haonan Wu, National Center for Atmospheric Research</div>
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<b>Session Description: </b>The Ionosphere-Thermosphere-Magnetosphere (ITM) system responds dynamically to both terrestrial weather from below and space weather from above. This session explores the relative roles and interactions of atmospheric waves—such
as tides, planetary waves, and gravity waves—and external drivers, including solar irradiance, solar wind, and geomagnetic activity, in shaping global ITM variability. Special emphasis is placed on disturbances from sudden stratospheric warmings, volcanic
eruptions, tropospheric convection, and geomagnetic storms. We invite observational, theoretical, and modeling studies that investigate coupling across spatial and temporal scales, with contributions from satellite missions (e.g., ICON, GOLD, AWE, COSMIC-2,
MMS), ground-based networks (e.g., SuperDARN, GNSS, ISR, Fabry-Perot interferometers, magnetometer arrays), and advanced models (e.g., WACCM-X, MAGE, TIEGCM, SAMI3). This session encourages cross-disciplinary collaboration to improve understanding of whole-atmosphere
coupling and its impact on space weather, electrodynamics, and thermospheric structure.</div>
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We look forward to your contribution to our AGU25 session. Please note that the <b>
abstract submission deadline is</b> <b>Wednesday, 30 July 2025 </b>at 23:59 EDT/03:59 UTC. </div>
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Sincerely,</div>
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Federico Gasperini, Xian Lu, Shantanab Debchoudhury, Xueling Shi, Haonan Wu</div>
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