<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><font color="#000000">Dear Colleagues,</font><div><font color="#000000"><br></font></div><div><font color="#000000">We would like to invite your participation in the joint CEDAR/GEM Session: <span style="caret-color: rgb(0, 0, 0);"><b>New Perspectives on Whole-Atmosphere Coupling and MIT System Impacts</b></span></font></div><div><font color="#000000"><span style="caret-color: rgb(0, 0, 0);"><b><br></b></span></font></div><div><span style="caret-color: rgb(0, 0, 0);"><b><font color="#1b1af6">Session Description:</font></b></span></div><div><div style="box-sizing: border-box; margin: 0px 0px 36px; padding: 0px;"><div style="box-sizing: border-box; margin: 0px; padding: 0px;"><p style="box-sizing: border-box; margin: 0px 0px 1rem; padding: 0px;"><span style="color: rgb(0, 0, 0); caret-color: rgb(0, 0, 0);">Coupling across atmospheric layers is a fundamental driver of variability in the Magnetosphere-Ionosphere-Thermosphere (MIT) system, shaping both space weather and long-term upper atmospheric trends. The MIT system is highly responsive to external drivers, including variations in solar irradiance, solar wind-interplanetary coupling, as well as internal fluctuations from the lower atmosphere. Sudden Stratospheric Warmings are well-established drivers of upper atmospheric variability, but growing evidence shows that other episodic disturbances—including volcanic eruptions and tropospheric convection—can also generate large-scale effects, influencing plasma outflows, neutral-plasma interactions, and storm-time responses. More broadly, lower atmospheric variability—including tides, gravity waves, planetary waves, Kelvin waves, and other disturbances—can modulate plasma transport, </span><span style="color: rgb(0, 0, 0); caret-color: rgb(0, 0, 0);">ionospheric structuring, and even magnetospheric electrodynamics. Superimposed on these terrestrial-induced variations are abrupt disturbances triggered by solar flares and geomagnetic perturbations in the form of particle precipitation, plasma outflow, field-aligned currents, heat flux, etc. </span></p><p style="box-sizing: border-box; margin: 0px 0px 1rem; padding: 0px;"><span style="color: rgb(0, 0, 0); caret-color: rgb(0, 0, 0);">The CEDAR and GEM communities are uniquely positioned to collaboratively study this whole-atmosphere coupling and its impacts on the MIT system. This session welcomes observational, theoretical, and modeling studies that investigate MIT coupling across spatial and temporal scales, with emphasis on new insights from multi-instrument satellite missions (e.g., ICON, GOLD, COSMIC-2, MMS, THEMIS, Van Allen Probes), ground-based networks, and state-of-the-art models (e.g., WACCM-X, MAGE, TIEGCM, SAMI3). Contributions addressing the roles of atmospheric waves and geomagnetic activity in space weather, energy transfer mechanisms, electrodynamic feedback, and interhemispheric asymmetries are particularly encouraged. The theme of this session closely aligns with the NSF/ANSWERS solicitation to support collaborative research on space physics</span></p><div><p style="caret-color: rgb(0, 0, 0); box-sizing: border-box; margin: 0px 0px 1rem; padding: 0px;"><font color="#1b1af6"><b>Session URL:</b></font><font color="#000000"><b> </b>https://cedarscience.org/workshop/2025-workshop-new-perspectives-whole-atmosphere-coupling-and-mit-system-impacts-0</font></p></div><div><span style="caret-color: rgb(42, 42, 42); color: rgb(0, 0, 0);">This session is scheduled from </span><font color="#000000">10am—12pm, Wednesday, June 25, 2025. </font><span style="caret-color: rgb(42, 42, 42); color: rgb(0, 0, 0);">If you would like to contribute to the session, please contact one of the conveners.</span></div><div><font color="#000000"><span style="caret-color: rgb(42, 42, 42);"><br></span></font></div><p style="box-sizing: border-box; margin: 0px 0px 1rem; padding: 0px;"><span style="color: rgb(0, 0, 0);">Look forward to seeing you at CEDAR/GEM!</span></p><p style="box-sizing: border-box; margin: 0px 0px 1rem; padding: 0px;"><font color="#000000">Xian Lu (<a href="mailto:liuh@ucar.edu">xianl@clemson.edu</a>)</font></p><p style="box-sizing: border-box; margin: 0px 0px 1rem; padding: 0px;"><font color="#000000">on behalf of the Conveners</font></p><div class="gmail-field gmail-field--name-field-workshop-conveners gmail-field--type-string-long gmail-field--label-above" style="box-sizing: border-box; margin: 0px 0px 36px; padding: 0px;"><div class="gmail-field-item" style="box-sizing: border-box; margin: 0px; padding: 0px;"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">Federico Gasperini (</span><a href="mailto:federico.gasperini@arcfield.com">federico.gasperini@arcfield.com</a><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">)</span></div><div class="gmail-field-item" style="box-sizing: border-box; margin: 0px; padding: 0px;"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">Jens Oberheide (</span><a href="mailto:joberhe@clemson.edu">joberhe@clemson.edu</a><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">)</span></div><div class="gmail-field-item" style="box-sizing: border-box; margin: 0px; padding: 0px;"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">Scott Thaller (</span><a href="mailto:scott.thaller@arcfield.com">scott.thaller@arcfield.com</a><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">)</span></div><div class="gmail-field-item" style="box-sizing: border-box; margin: 0px; padding: 0px;"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">Dong Lin (</span><a href="mailto:ldong@ucar.edu">ldong@ucar.edu</a><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">)</span></div><div class="gmail-field-item" style="box-sizing: border-box; margin: 0px; padding: 0px;"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">Scott England (</span><a href="mailto:englands@vt.edu">englands@vt.edu</a><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">)</span></div><div class="gmail-field-item" style="box-sizing: border-box; margin: 0px; padding: 0px;"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">Shun-Rong Zhang (</span><a href="mailto:shunrong@mit.edu">shunrong@mit.edu</a><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">)</span></div><div class="gmail-field-item" style="box-sizing: border-box; margin: 0px; padding: 0px;"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">Laila Andersson (</span><a href="mailto:Laila.Andersson@lasp.colorado.edu">Laila.Andersson@lasp.colorado.edu</a><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">)</span></div><div class="gmail-field-item" style="box-sizing: border-box; margin: 0px; padding: 0px;"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">Goodwin Lindsay (</span><a href="mailto:lindsay.v.goodwin@njit.edu">lindsay.v.goodwin@njit.edu</a><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">)</span></div><div class="gmail-field-item" style="box-sizing: border-box; margin: 0px; padding: 0px;"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">Dogacan Ozturk (</span><a href="mailto:dsozturk@alaska.edu">dsozturk@alaska.edu</a><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">)</span></div><div class="gmail-field-item" style="box-sizing: border-box; margin: 0px; padding: 0px;"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">Joe Huba (</span><a href="mailto:jdhuba@gmail.com">jdhuba@gmail.com</a><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">)</span></div></div></div></div></div></body></html>