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<p class="MsoNormal"><span style="font-size:11.0pt">Dear colleagues,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">We are cordially inviting you to participate in this year’s AGU SA018 session on ionospheric irregularities and scintillation. We are again encouraging early-career and student participants who want to present
their work in the oral session. Please consider submitting your abstract by the submission deadline, July 31, 2024.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Session description:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Ionospheric irregularities are the source of scintillation, defined as rapid random fluctuations in the amplitude and phase of radio signals that adversely affect transionospheric communication and navigation
systems. Scintillations are the most severe at magnetic low- and high-latitudes; however, recent reports have demonstrated robust scintillation in midlatitude regions, as well. These irregularities with characteristic scales ranging from 100s of meters to
10s ok km in conjunction with larger-scale density perturbations impact radio and radar systems. The generation mechanisms producing these ionospheric density irregularities are controlled by the background density, electric fields, plasma drift, neutral winds,
and particle precipitation. Understanding the state of the system controlling the instability onset, growth, and saturation is paramount for forecasting and mitigation strategies. In this session, we invite both modeling and observational studies pertinent
to advancing our understanding of the role of various processes for the generation of ionospheric irregularities and their propagation impacts.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">See you in Washington, DC.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Sebastijan Mrak<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Matt Zettergren<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Romina Nikoukar<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Waqar Younas<o:p></o:p></span></p>
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