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<div>Dear Colleagues,</div>
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<div>We are excited to announce the 45th COSPAR Scientific Assembly to be held July 13-21, 2024 in Busan, South Korea, and invite you to contribute by submitting abstracts for the C1.3 session.</div>
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<div><b>C1.3 Session:</b> Atmospheric and Ionospheric Perturbations at Low, Mid, and High Latitudes from Known Sources</div>
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<div><b>Session Description:</b></div>
<div>Natural and man-made phenomena such as geomagnetic storms, eclipses, volcanoes, earthquakes, tornadoes, tropospheric storms, and explosions generate various atmospheric waves. Some of these waves generate perturbations of measurable magnitudes in the upper
atmosphere and ionosphere. Worldwide observational facilities enable the tracing of the evolution of perturbations, and the development of sophisticated atmosphere-ionosphere coupling models enables the simulation of the propagation of atmospheric waves. However,
we do not yet have sufficient knowledge about the dependence of the characteristics of atmospheric and ionospheric perturbations such as the spatial extent, magnitude, and morphology of perturbations on different sources. This session provides an opportunity
to discuss recent progress in the study of the generation of atmospheric waves, their propagation, and the ionospheric response to these waves in low, mid, and high latitudes. We welcome the presentation of observations, numerical simulation results, and theoretical
studies for known natural and man-made events.</div>
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<div>Abstract Submission Deadline: <b>9 February 2024</b></div>
<div>Submission Guidelines: Please review the guidelines on our conference website (<a href="https://www.cospar2024.org/" class="OWAAutoLink" id="LPlnk851723" previewremoved="true">https://www.cospar2024.org/</a>).</div>
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<div>Thank you for your anticipated contribution, and we look forward to your active involvement in the C1.3 session.</div>
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<div>Best regards,</div>
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<div>Young-Sil Kwak (Korea Astronomy and Space Science Institute, Korea), Main Scientific Organizer</div>
<div>Hyosub Kil (Johns Hopkins University Applied Physics Laboratory, US), Deputy Organizer</div>
<div>Charles Lin (National Cheng Kung University, Taiwan), SOC</div>
<div>Huixin Liu (Kyushu University, Japan), SOC</div>
<div>Jiuhou Lei (University of Science and Technology of China, China), SOC</div>
<div>Tatsuhiro Yokoyama (Kyoto University, Japan), SOC</div>
<div>Woo Kyoung Lee (Korea Astronomy and Space Science Institute, Korea), SOC</div>
<div>Rui Wang (Polar Research Institute of China, China), SOC</div>
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<div style="font-size:13px; font-family:Tahoma">----------------------------------------------------------<br>
Young-Sil Kwak, Ph.D.</div>
<div style="font-size:13px; font-family:Tahoma">Korea Astronomy and Space Science Institute<br>
776, Daedeok-Daero, Yuseong-gu <br>
Daejeon, 34055, South Korea<br>
E-mail: yskwak@kasi.re.kr, youngsilkwak@gmail.com<br>
Tel: +82-42-865-2039 Fax:+82-42-865-3272 </div>
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