<div dir="ltr"><div class="gmail-">Dear colleagues,<span class="gmail-Apple-converted-space"> </span><br class="gmail-">
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<div class="gmail-"> Please consider submitting your work to the JGR
Atmosphere-Space Physics special issue: Long term changes and trends in
the middle and upper atmosphere.<span class="gmail-Apple-converted-space"> </span><br class="gmail-">
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<div class="gmail-"> First manuscript for peer review: 15 August 2018</div>
<div class="gmail-"> Date last manuscript should be submitted for peer review: 31 January 2019</div>
<div class="gmail-"> Special section organizers: Jia Yue, Tao Li, Shunrong Zhang, Liying Qian, Jan Lastovicka</div>
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<div class="gmail-"> The section description is as follows:</div>
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<div class="gmail-"> 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.<span class="gmail-Apple-converted-space"> </span><br class="gmail-">
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<div class="gmail-"><br class="gmail-">
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<div class="gmail-">Sincerely,<span class="gmail-Apple-converted-space"> </span><br class="gmail-">
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<div class="gmail-"> Jia Yue<br class="gmail-">
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<div class="gmail-"> <span class="gmail-Apple-converted-space"> </span></div><br></div>