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<p><b>Invitation to 2015 CEDAR workshop "Long-term variations in the
geospace environment"</b><br>
</p>
<p>Long term variations in the geospace environment are caused by a
variety of sources, including the 11-year solar cycle and the
secular variation in the geomagnetic field. Accurate knowledge of
long-term trends in all portions of the geospace environment are
essential to understand and predict behaviour in the ionosphere
and thermosphere. The changing predictions for the current solar
cycle (24) are a good example of how this gap in our knowledge
limits forecasting capability. It also highlights the importance
of incorporating multiple sources of data.
</p>
<p>There are now many instruments and datasets that have been
operating continuously or sporadically over several solar cycles,
allowing long-term studies of the influence of solar irradiance,
secular changes in the magnetic field, and changes in the
composition of the lower atmosphere and thermosphere. This
workshop will address the progress and problems in our
understanding of these long-term variations. Invited talks will
give an overview of the available datasets and discuss the current
state of investigation of long-term variations in the sun,
geomagnetic field, ionosphere/thermosphere, and lower atmosphere.
Submitted presentations and directed discussion will cover topics
including long-term variation in the solar spectrum, the influence
of changes in lower atmospheric composition on the upper
atmosphere, and the long-term variability of the ionosphere. This
workshop will help observational space physicists and modelers
share their progress and requirements to better attack the problem
of long-term variations in interconnected regions of the geospace
environment.<br>
</p>
<p><b><span timesnewroman??,serif?="">Time: 16:00-18:00 on June
25th, 2015 (Thursday)<br>
</span></b></p>
<p><span timesnewroman??,serif?="">We </span><span
timesnewroman??,serif?="">would like to invite</span><span
timesnewroman??,serif?=""> interested people to present their
work, tools, or ideas in this session. More information can be
found at the CEDAR webpage:<br>
</span></p>
<p><span timesnewroman??,serif?=""><a class="moz-txt-link-freetext" href="http://cedarweb.vsp.ucar.edu/wiki/index.php/2015_Workshop:Geospace_variations">http://cedarweb.vsp.ucar.edu/wiki/index.php/2015_Workshop:Geospace_variations</a></span><b><span
timesnewroman??,serif?=""><br>
</span></b></p>
<p><span timesnewroman??,serif?="">Convenors: Jeff Klenzing
(<a class="moz-txt-link-abbreviated" href="mailto:jeffrey.klenzing@nasa.gov">jeffrey.klenzing@nasa.gov</a>), Angeline Burrell
(<a class="moz-txt-link-abbreviated" href="mailto:ab763@leicester.ac.uk">ab763@leicester.ac.uk</a>)</span><b><span timesnewroman??,serif?=""><br>
</span></b></p>
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