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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:"-webkit-standard",serif;color:black">Dear Colleagues,<span class="apple-converted-space"> </span><o:p></o:p></span></p>
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<span style="font-family:"-webkit-standard",serif;color:black"><o:p> </o:p></span></p>
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<span style="font-family:"-webkit-standard",serif;color:black">We would like to draw your attention and invite you to consider submitting an abstract to the <b>ST3.2 session in Ionosphere and Thermosphere</b> program group to be held at the EGU General Assembly
2022, April 3-8 in Vienna, Austria.<span class="apple-converted-space"> </span><o:p></o:p></span></p>
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<b><span style="font-family:"-webkit-standard",serif;color:black">Abstract submission:
</span></b><span style="font-family:"-webkit-standard",serif;color:black">https://meetingorganizer.copernicus.org/EGU22/session/43637
<o:p></o:p></span></p>
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<b><span style="font-family:"-webkit-standard",serif;color:black">ST4.2 - Towards better understanding of the ionospheric plasma irregularities and scintillations</span></b><span style="font-family:"-webkit-standard",serif;color:black"><o:p></o:p></span></p>
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<span style="font-family:"-webkit-standard",serif;color:black"><o:p> </o:p></span></p>
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<u><span style="font-family:"-webkit-standard",serif;color:black">Session details</span></u><span style="font-family:"-webkit-standard",serif;color:black">: <span class="apple-converted-space"> </span><o:p></o:p></span></p>
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<i><span style="font-family:"-webkit-standard",serif;color:black">Plasma density irregularities can occur at all latitudes in the Earth’s ionosphere. However, the onset and evolution of these irregularities as well as their influence on the radio wave signals
continue to be unsolved scientific questions. The various proposed generation mechanisms, including instability growth rates and seeding processes, are strongly coupled to the neutral atmosphere and magnetospheric dynamics, making the forecasting of ionospheric
irregularities much more challenging. Recent observations from ground- and space-based measurements, as well as new innovative data analysis and modeling techniques, e.g., data assimilation and machine learning, have the potential to advance our understanding
of the ionospheric irregularities. Studies that focus on the observation, modeling and prediction of plasma irregularities of different scales are welcome at this session. The mitigation of negative effects and recent developments to forecast scintillation
effects on Global Navigation Satellite or other communication systems are also of high interest.<span class="apple-converted-space"> </span></span></i><span style="font-family:"-webkit-standard",serif;color:black"><o:p></o:p></span></p>
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<span style="font-family:"-webkit-standard",serif;color:black">We look forward to receiving your contributions and thank you very much for your attention.<span class="apple-converted-space"> </span><o:p></o:p></span></p>
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<span style="font-family:"-webkit-standard",serif;color:black"><o:p> </o:p></span></p>
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<span style="font-family:"-webkit-standard",serif;color:black">Sincerely yours, session conveners,<span class="apple-converted-space"> </span><o:p></o:p></span></p>
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<span style="font-family:"-webkit-standard",serif;color:black">Chao Xiong,<span class="apple-converted-space"> </span><o:p></o:p></span></p>
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<span style="font-family:"-webkit-standard",serif;color:black">Lucilla Alfonsi,<span class="apple-converted-space"> </span><o:p></o:p></span></p>
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<span style="font-family:"-webkit-standard",serif;color:black">Jens Berdermann,<span class="apple-converted-space"> </span><o:p></o:p></span></p>
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<span style="font-family:"-webkit-standard",serif;color:black">Yaqi Jin,<span class="apple-converted-space"> </span><o:p></o:p></span></p>
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<span style="font-family:"-webkit-standard",serif;color:black">Jeffrey Klenzing<o:p></o:p></span></p>
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