<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=Windows-1252">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Aptos;
panose-1:2 11 0 4 2 2 2 2 2 4;}
@font-face
{font-family:Roboto;
panose-1:2 0 0 0 0 0 0 0 0 0;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
font-size:11.0pt;
font-family:"Aptos",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#467886;
text-decoration:underline;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:11.0pt;
mso-ligatures:none;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style>
</head>
<body lang="EN-US" link="#467886" vlink="#96607D" style="word-wrap:break-word">
<div class="WordSection1">
<div>
<p class="MsoNormal">Dear colleague:</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">We would like to invite you <a href="https://www.agu.org/annual-meeting">
to submit abstracts to the AGU</a> session: “<a href="https://agu.confex.com/agu/agu24/prelim.cgi/Session/225090">100 years of the E layer Observations</a>” and join us for this special occasion. We want to highlight the important E-region research and celebrate
the century of Appleton's first observations of the E layer. Abstracts related to theory, observations, simulations, and machine learning, among others are welcomed. </p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">We would also like to hear your ideas about how to celebrate the century of the research in our area.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Sincerely,</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Eliana Nossa, Steve Kaeppler, Aroh Barjatya, Brett McCuen</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Description:</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><span style="font-family:Roboto;color:black;background:white">This year marks the 100th anniversary of the first E-region observation experiments performed by Sir Edward Appleton in 1924. Since then, there have been significant advances
in understanding E-region physics, and the E-layer has been routinely used by high-frequency (HF) radio and ground radar operators. This session welcomes abstracts that highlight the latest advancements in understanding of the E-region dynamics, as well as
open questions related to sporadic E-layer forecast, lower E-layer formation mechanism, as well as novel applications. Papers related to theory, observations, experiments, modeling, E-region data assimilation and neutral density forecasting, and other applications
are all encouraged. The session also aims to hear about observations of neutral winds and neutral densities that could further help to investigate various E-region phenomena.</span></p>
</div>
</div>
</body>
</html>