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--></style></head><body lang=EN-US link="#467886" vlink="#96607D" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal>Dear Colleagues,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>We invite you to submit abstracts to AGU session <a href="https://agu.confex.com/agu/agu24/prelim.cgi/Session/229437">SA013 – High-latitude Ionospheric Dynamics and the Impact of Forcing from Above and Below</a><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><b>Session Description<o:p></o:p></b></p><p class=MsoNormal>The high-latitude ionosphere is a dynamic environment heavily influenced by driving from above and below. The magnetosphere drives convection and auroral precipitation which in turn impacts local ionospheric structure. The thermosphere/lower-atmosphere imparts momentum through atmospheric waves and wind, as well as modulates ionospheric chemistry. The system response timescales to these influences vary so there is a complex interplay of forcing and hysteresis. Furthermore, these factors often generate gradients, shears, and complex flow patterns which interact to trigger nonlinear plasma dynamics. The fully coupled magnetosphere-ionosphere-thermosphere system is difficult to concurrently measure across all spatial (from sub-meter to multiple Earth radii) and temporal (from seconds to solar cycle) scales of importance. Data and modeling studies using a wide range of platforms and models are increasing our understanding of this interesting and complex environment. This session welcomes presentations of research investigating high-latitude ionospheric dynamics, especially those using diverse multi-instrument or combined observation-modeling approaches.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><b>URL:</b> <a href="https://agu.confex.com/agu/agu24/prelim.cgi/Session/229437">https://agu.confex.com/agu/agu24/prelim.cgi/Session/229437</a><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Please feel free to reach out with any questions. We look forward to seeing you at AGU in December!<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='margin-left:.5in'>Meghan Burleigh (<a href="mailto:meghan.r.burleigh.civ@us.navy.mil"><span class=outlook-search-highlight><span style='color:#0078D7'>meghan.r.burleigh.civ@us.navy.mil</span></span></a>)<o:p></o:p></p><p class=MsoNormal style='margin-left:.5in'>Leslie Lamarche (<a href="mailto:leslie.lamarche@sri.com">leslie.lamarche@sri.com</a>)<o:p></o:p></p><p class=MsoNormal style='margin-left:.5in'>Kristina Lynch (<a href="mailto:Kristina.A.Lynch@dartmouth.edu"><span class=outlook-search-highlight><span style='font-family:"Calibri",sans-serif;color:#0078D7'>Kristina.A.Lynch@dartmouth.edu</span></span></a><span style='font-family:"Calibri",sans-serif;color:black'>)</span><o:p></o:p></p></div></body></html>