<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"><head>
<title></title>
<meta http-equiv="content-type" content="text/html;charset=utf-8"/>
<meta http-equiv="Content-Style-Type" content="text/css"/>
</head>
<body>
<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">Dear Colleagues,</span></font></div>
<div align="left"><font face="Times New Roman"><span style=" font-size:12pt"> </span></font></div>
<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">during the IUGG Assembly 8-18 July</span></font><font face="Times New Roman">
<span style=" font-size:12pt"> </span></font><font face="Arial" size="2"><span style=" font-size:10pt">2019 in Montreal there will be a session "JA05 - Solar
Influence on the Atmosphere" jointly organised by IAGA and IAMAS, which will cover all
aspects of solar-terrestrial sciences in relation to the atmosphere. The description of the
session is given below, and you may find a short version at
</span></font><a href="http://iugg2019montreal.com/ja.html"><font face="Arial" size="2"><span style=" font-size:10pt"><u>http://iugg2019montreal.com/ja.html</u></span></font></a>
<font face="Times New Roman"><span style=" font-size:12pt"> </span></font><font face="Arial" size="2"><span style=" font-size:10pt">.</span></font>
<font face="Times New Roman"><span style=" font-size:12pt"> </span></font></div>
<div align="left"><font face="Times New Roman"><span style=" font-size:12pt"><br />
</span></font></div>
<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">Please consider presenting your research results at this session. Abstract submission is
possible at</span></font><font face="Times New Roman"><span style=" font-size:12pt"> </span></font><a href="http://iugg2019montreal.com/abstract-submission.html">
<font face="Arial" size="2"><span style=" font-size:10pt"><u>http://iugg2019montreal.com/abstract-submission.html</u></span></font></a>
<font face="Arial" size="2"><span style=" font-size:10pt">, and the deadline is
Februay 18, 2019.</span></font><font face="Times New Roman"><span style=" font-size:12pt"> </span></font></div>
<div align="left"><font face="Times New Roman"><span style=" font-size:12pt"><br />
</span></font></div>
<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">Looking forward to seeing you in Montreal</span></font>
<font face="Times New Roman"><span style=" font-size:12pt"> </span></font></div>
<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">With best regards</span></font><font face="Times New Roman">
<span style=" font-size:12pt"> </span></font></div>
<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">Christoph Jacobi</span></font><font face="Times New Roman">
<span style=" font-size:12pt"> </span></font></div>
<div align="left"><font face="Times New Roman"><span style=" font-size:12pt"><br />
</span></font></div>
<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt"><br />
</span></font></div>
<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">JA05 - Solar Influence on the Atmosphere, Session description:</span></font>
<font face="Times New Roman"><span style=" font-size:12pt"> </span></font></div>
<div align="justify"><font face="Arial" size="2"><span style=" font-size:10pt">"Solar influence on climate keeps attracting much interest presently. This includes in
particular the role of the Sun both in the past climate as in future climate variability as an
important aspect. State-of the art climate models include a well resolved stratosphere and
partly mesosphere. This allows the prediction of global climate and its changes taking into
account expected solar related variability at short to long time scales.</span></font></div>
<div align="justify"><font face="Arial" size="2"><span style=" font-size:10pt">In the middle and upper atmosphere solar related electromagnetic and particle variability is
one dominant forcing mechanism for atmospheric variability at time scales from days to
decades. Solar wind effects on the whole atmosphere have to be considered. From available
datasets it is not always straightforward to distinguish between solar and meteorological
influences. Time series are often too short to clearly identify, e.g., the 11-year solar cycle in
the presence of nonlinear trends owing to lower atmospheric variability. The effect of
planetary waves at time scales of days to weeks is difficult to extract from time series in the
presence of the solar rotation effect and harmonics.</span></font></div>
<div align="justify"><font face="Arial" size="2"><span style=" font-size:10pt">Results from observations, including observation and modeling solar forcing, theoretical work
and modeling efforts to quantify meteorological and solar effects on the lower, middle, and
upper atmosphere are welcome. Reports on progress in reconstructing past climate and
future climate projections and the role of extraterrestrial forcing in these are desired. In
particular, results from national and international projects like VarSITI/ROSMIC, and from
global modeling initiatives are solicited."</span></font><font face="Times New Roman"><span style=" font-size:12pt"> </span></font></div>
<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt"><br />
</span></font></div>
<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">Promotionsausschuss der Fakultät für Physik und Geowissenschaften</span></font></div>
<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">Universität Leipzig</span></font></div>
<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">Tel.: +49-341-97-32400</span></font></div>
<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">Email: jacobi@uni-leipzig.de</span></font></div>
</body>
</html>