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<p class="MsoNormal"><span style="font-family:"Times New Roman";mso-fareast-font-family:
"Times New Roman"">Dear colleagues,</span></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman";mso-fareast-font-family:
"Times New Roman""> </span></p>
<p class="MsoNormal" style="text-indent:.5in"><span style="font-family:"Times New Roman";
mso-fareast-font-family:"Times New Roman"">Please consider submit your papers to the JGR special section. It is important to avoid delays in manuscript submissions and
revisions. We encourage authors to act in a timely manner and remain responsive throughout the review process.
</span></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman";mso-fareast-font-family:
"Times New Roman""> </span></p>
<p class="MsoNormal" style="text-indent:.5in"><span style="font-family:"Times New Roman";
mso-fareast-font-family:"Times New Roman";color:#424242;border:none windowtext 1.0pt;
mso-border-alt:none windowtext 0in;padding:0in">Call for Papers for “Long-term changes
and Trends in the Middle and Upper Atmosphere”</span></p>
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</span><span style="font-family:"Times New Roman";mso-fareast-font-family:"Times New Roman""></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-family:"Times New Roman";color:#424242;border:none windowtext 1.0pt;
mso-border-alt:none windowtext 0in;padding:0in">Submission Open:</span></b><span style="font-family:"Times New Roman";color:#424242;border:none windowtext 1.0pt;
mso-border-alt:none windowtext 0in;padding:0in"> 01
August 2018</span><span style="font-family:"Times New Roman""></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-family:"Times New Roman";color:#424242;border:none windowtext 1.0pt;
mso-border-alt:none windowtext 0in;padding:0in">Submission Deadline:</span></b><span style="font-family:"Times New Roman";color:#424242;border:none windowtext 1.0pt;
mso-border-alt:none windowtext 0in;padding:0in"> 31
January 2019</span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><br>
<span style="font-family:"Times New Roman";color:#424242;border:none windowtext 1.0pt;
mso-border-alt:none windowtext 0in;padding:0in"></span><span style="font-family:"Times New Roman""></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-family:"Times New Roman";color:#424242;border:none windowtext 1.0pt;
mso-border-alt:none windowtext 0in;padding:0in">Special Section Organizers:</span></b><span style="font-family:"Times New Roman";color:#424242;border:none windowtext 1.0pt;
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Jia Yue, Hampton University, University of Maryland College Park; Tao Li, University of Science and Technology of China; Shunrong Zhang, MITLiying Qian, NCAR; Jan Lastovicka, Institute of Atmospheric Physics, CAS</span></p>
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</span></p>
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<span style="font-family:"Times New Roman";color:#424242;
border:none windowtext 1.0pt;mso-border-alt:none windowtext 0in;padding:0in">This special issue is inspired by the recent 10th Trend Workshop in May 2018, but is open to all relevant submissions. Long-term
changes to Earth’s middle and upper atmosphere are becoming more and more relevant to the future of our world and it is paramount that we quantify and understand changes occurring at all levels within the coupled atmospheric system. The increasing concentration
of greenhouse gases, stratospheric ozone depletion, varying solar and geomagnetic activity, secular change of Earth’s magnetic field, and changing dynamics propagating up from the troposphere are some of the possible causes of long-term changes in the stratosphere,
mesosphere, thermosphere and ionosphere. The goals of this workshop are to review the current state of knowledge about trends in these atmospheric regions, and to discuss what research is necessary for resolving inconsistencies, reducing uncertainties, and
achieving a deeper understanding of middle and upper atmospheric climate change – especially the relative influences of anthropogenic and solar effects. Topics on long-term variations of the middle and upper atmosphere and ionosphere such as QBO, ENSO, MJO
are all welcomed. <br>
</span></p>
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text-indent:.5in">
<br>
<span style="font-family:"Times New Roman";color:#424242;
border:none windowtext 1.0pt;mso-border-alt:none windowtext 0in;padding:0in"></span><span style="font-family:"Times New Roman""></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
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<span style="font-family:"Times New Roman";color:#424242;
border:none windowtext 1.0pt;mso-border-alt:none windowtext 0in;padding:0in">Authors are to submit through the GEMS site for JGR: Space Physics at
<u>https://jgr-spacephysics-submit.agu.org</u> or for JGR: Atmospheres at <u>https://jgr-atmospheres-submit.agu.org</u>. When authors submit a manuscript, they must select the appropriate special section designation. For additional information please contact
<a href="mailto:jgr-spacephysics@agu.org"><span style="color:blue">jgr-spacephysics@agu.org</span></a> and jgr-atmospheres@agu.org</span></p>
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<br>
<span style="font-family:"Times New Roman";color:#424242;
border:none windowtext 1.0pt;mso-border-alt:none windowtext 0in;padding:0in"></span><span style="font-family:"Times New Roman""></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
text-indent:.5in">
<span style="font-family:"Times New Roman";color:#424242;
border:none windowtext 1.0pt;mso-border-alt:none windowtext 0in;padding:0in">Sincerely,</span><span style="font-family:"Times New Roman""></span></p>
<span style="font-family:"Times New Roman";color:#424242;border:none windowtext 1.0pt;
mso-border-alt:none windowtext 0in;padding:0in"> Jia Yue and Tao Li</span></div>
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