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<p class="MsoNormal">Dear CEDAR community,<o:p></o:p></p>
<p class="MsoNormal"><span style="color:#333333;background:white"><br>
</span>Happy Lunar New Year!<o:p></o:p></p>
<p class="MsoNormal">Asia Oceania Geosciences Society 20th Annual Meeting (AOGS2023) will be held from 30 Jul to 04 Aug 2023 in Singapore. <a href="https://www.asiaoceania.org/aogs2023/">https://www.asiaoceania.org/aogs2023/</a><o:p></o:p></p>
<p class="MsoNormal"><span style="color:black">We would like to invite you to submit abstracts to the ST03 session
<span style="background:white">"Recent Advance in Understanding Ionospheric Disturbances and Irregularities Link to Waves from Below". <o:p></o:p></span></span></p>
<p class="MsoNormal">Please note that the deadline for the abstract submission is 14 Feb 2023.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Abstract submission page:<o:p></o:p></p>
<p class="MsoNormal"><a href="https://www.asiaoceania.org/aogs2023/public.asp?page=submit_abstracts.asp">https://www.asiaoceania.org/aogs2023/public.asp?page=submit_abstracts.asp</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Session Description:<o:p></o:p></p>
<p class="MsoNormal"><b><span style="font-size:12.0pt;color:#333333;background:#F9F9F9">Recent Advance in Understanding Ionospheric Disturbances and Irregularities Link to Waves from Below</span></b><span style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="color:#333333;background:white">Ionospheric space weather was originally considered to be driven by solar activities. However, in the last decades, scientists realized more about another branch of space weather related to the
natural and anthropogenic activities that occur on our Earth, such as terrestrial weather activities, earthquakes, tsunamis, volcanic eruptions, and rocket launches. These natural and anthropogenic sources can generate various spatial and temporal scales of
atmospheric waves and disturbances propagating upward into the upper atmosphere, significantly influencing the neutral wind, temperature, the constituent structure of the atmosphere, and even the global thermosphere/ionosphere circulation. The most ubiquitous
and frequently observed ionospheric signatures related to atmospheric acoustic-gravity waves are traveling ionospheric disturbances (TIDs) and irregularities (e.g., plasma bubbles). The significant ionospheric changes can impact our navigation and communication
systems. Understanding how the atmosphere waves reach the upper atmosphere and cause variations in the space environment around Earth is critical for understanding the day-to-day or momentary variability of the ionosphere and advancing the ability of space
weather forecasts. This section welcomes observational and theoretical modeling studies that describe the recent progress of the ionospheric disturbances and irregularities linked to waves originating from below, as well as the understanding of the underlying
physical mechanisms governing the day-to-day and momentary variabilities of mid- and low-latitude ionosphere.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#333333;background:white"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#333333;background:white">Best regards,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#333333">Dr. Min-Yang Chou (NASA Goddard Space Flight Center)<br>
Prof. Charles Lin (National Cheng Kung University)<br>
Prof. Yang-Yi Sun (China University of Geosciences)<br>
Prof. Tatsuhiro Yokoyama (Kyoto University)<br>
Dr. Jia Yue (NASA Goddard Space Flight Center)</span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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