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<p class="MsoNormal"><span style="font-size:11.0pt;color:black;mso-ligatures:none">Dear colleagues,</span><span style="font-size:13.5pt;color:black;mso-ligatures:none"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black;mso-ligatures:none"> </span><span style="font-size:13.5pt;color:black;mso-ligatures:none"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black;mso-ligatures:none">We are cordially inviting you to submit abstracts to this year’s AGU SA018 session on ionospheric irregularities and scintillation.
</span><span style="font-size:13.5pt;color:black;mso-ligatures:none"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black;mso-ligatures:none"> </span><span style="font-size:13.5pt;color:black;mso-ligatures:none"><o:p></o:p></span></p>
<p class="MsoNormal"><u><span style="font-size:11.0pt;color:black;mso-ligatures:none">Session description:</span></u><u><span style="font-size:13.5pt;color:black;mso-ligatures:none"><o:p></o:p></span></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black;mso-ligatures:none">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:13.5pt;color:black;mso-ligatures:none"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black;mso-ligatures:none">We are looking forward to seeing you in San Francisco.</span><span style="font-size:13.5pt;color:black;mso-ligatures:none"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black;mso-ligatures:none"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black;mso-ligatures:none">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:13.5pt;color:black;mso-ligatures:none"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black;mso-ligatures:none">Sebastijan Mrak</span><span style="font-size:13.5pt;color:black;mso-ligatures:none"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black;mso-ligatures:none">Matt Zettergren</span><span style="font-size:13.5pt;color:black;mso-ligatures:none"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black;mso-ligatures:none">Romina Nikoukar</span><span style="font-size:13.5pt;color:black;mso-ligatures:none"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black;mso-ligatures:none">Waqar Younas</span><span style="font-size:13.5pt;color:black;mso-ligatures:none"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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