<div dir="ltr"><p class="MsoNormal" style="margin:0cm;font-size:12pt;font-family:Calibri,sans-serif"><span lang="EN-US" style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(38,38,38);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Dear Colleagues,</span></p>

<p class="MsoNormal" style="margin:0cm;font-size:12pt;font-family:Calibri,sans-serif"><span lang="EN-US" style="font-family:宋体"> </span></p>

<p class="MsoNormal" style="margin:0cm;font-size:12pt;font-family:Calibri,sans-serif"><span lang="EN-US" style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(38,38,38);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">We would like to invite you to submit
contributions to the ring current session at the 2024 AGU Fall Meeting (Washington,
D.C., 9-13 December 2024).  Abstracts
submission link is here: <a href="https://agu.confex.com/agu/agu24/prelim.cgi/Session/226541">https://agu.confex.com/agu/agu24/prelim.cgi/Session/226541</a></span><span lang="EN-US" style="font-size:10.5pt;font-family:宋体;color:rgb(38,38,38);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">. </span></p>

<p class="MsoNormal" style="margin:0cm;font-size:12pt;font-family:Calibri,sans-serif"><span lang="EN-US" style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(38,38,38);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">The submission deadline is <b>July 31st, 2024. </b> </span></p>

<p class="MsoNormal" style="margin:0cm;font-size:12pt;font-family:Calibri,sans-serif"><span lang="EN-US" style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(38,38,38);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"> </span></p>

<p class="MsoNormal" style="margin:0cm;font-size:12pt;font-family:Calibri,sans-serif"><b><span lang="EN-US" style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(38,38,38);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">SM020. Ring Current Particle
Sources, Losses, and its Coupling with Other Regions</span></b></p>

<p class="MsoNormal" style="margin:0cm;font-size:12pt;font-family:Calibri,sans-serif"><span lang="EN-US" style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(38,38,38);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"> </span></p>

<p class="MsoNormal" style="text-align:justify;margin:0cm;font-size:12pt;font-family:Calibri,sans-serif"><span lang="EN-US" style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(38,38,38);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Earth’s ring current is comprised of electrons and ions from
1 keV to several hundred keV and regulates the energy density and field
configuration of the magnetosphere. Abrupt changes in this population are
responsible for decreases in Earth's surface magnetic field, serving as an
indicator for geomagnetic storms. The storm-time ring current is linked to
harmful space weather effects, highlighting the need to study its source and
loss processes, and impacts on magnetosphere-ionosphere system. The instability
of ring current plasma provides free energy for generating various waves. The
electromagnetic ion cyclotron waves, magnetosonic waves, and whistler-mode
waves can scatter or heat particles of different species, resulting in their
precipitation to the ionosphere or energization in the magnetosphere. We invite
presentations of theoretical studies, numerical modeling, and observations to
advance understanding of the ring current dynamics, wave-particle interactions,
and the coupling between the ring current and particle populations in different
regimes.</span></p>

<p class="MsoNormal" style="text-align:justify;margin:0cm;font-size:12pt;font-family:Calibri,sans-serif"><span lang="EN-US" style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(38,38,38);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"> </span></p>

<p class="MsoNormal" style="margin:0cm;font-size:12pt;font-family:Calibri,sans-serif"><span lang="EN-US" style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(38,38,38);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Conveners: Qianli Ma, Cristian Ferradas, Jacob Bortnik,
Chao Yue</span></p><div><br></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><font style="background-color:rgb(255,255,255)"><div><font style="background-color:rgb(255,255,255)" face="arial, sans-serif">Chao YUE, Ph.D</font></div></font><p style="color:rgb(0,0,0);font-size:14px"><span><font face="arial, sans-serif">Assistant Professor </font></span></p><p style="color:rgb(0,0,0);font-size:14px"><span><font face="arial, sans-serif">School of Earth and Space Sciences</font></span></p><p style="color:rgb(0,0,0);font-size:14px"><span><font face="arial, sans-serif">Peking University, Beijing, China</font></span></p><p style="color:rgb(0,0,0);font-size:14px"><span><a href="http://faculty.pku.edu.cn/yuechao/" target="_blank"><font face="arial, sans-serif">http://faculty.pku.edu.cn/yuechao/</font></a></span></p></div></div></div></div></div></div></div>