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<p class="MsoNormal" style="background-image:initial;background-repeat:initial"><span lang="EN" style="font-size:9.5pt;font-family:Arial">Dear Colleagues,</span></p>
<p class="MsoNormal" style="background-image:initial;background-repeat:initial"><span lang="EN" style="font-size:9.5pt;font-family:Arial"> </span></p>
<p class="MsoNormal" style="background-image:initial;background-repeat:initial"><span lang="EN" style="font-size:9.5pt;font-family:Arial">Just to remind everyone that the deadline for the
abstract is coming soon. Hope to see you
in Seoul.</span><span style="font-size:9.5pt;font-family:Arial"></span></p>
<p class="MsoNormal" style="background-image:initial;background-repeat:initial"><span style="font-size:9.5pt;font-family:Arial"> </span></p>
<p class="MsoNormal" style="background-image:initial;background-repeat:initial"><span lang="EN" style="font-size:9.5pt;font-family:Arial">The <a name="m_6144475297516304532_OLE_LINK1">2016 URSI Asia-Pacific
Radio Science Conference </a>(URSI AP-RASC 2016) will be held from Aug
21 to 25, 2016 in Seoul, Korea. There are several special sessions of this
conference will be of particular interest to the CEDAR community.</span><span style="font-size:9.5pt;font-family:Arial"></span></p>
<p class="MsoNormal" style="background-image:initial;background-repeat:initial"><span lang="EN" style="font-size:9.5pt;font-family:Arial">The paper submission deadline for special sessions is on April
5, 2016, and the guidelines for paper submission can be found at<a href="http://aprasc2016.org/Paper_Submission.php"><span style="color:blue">http://aprasc2016.org/Paper_Submission.php</span></a>.</span><span style="font-size:9.5pt;font-family:Arial"></span></p>
<p class="MsoNormal" style="background-image:initial;background-repeat:initial"><span lang="EN" style="font-size:9.5pt;font-family:Arial"> Should you have any queries regarding any of the
matters mentioned in the above, please do not hesitate to contact us on E-mail:<a href="mailto:secretariat@aprasc2016.org">secretariat@aprasc2016.org</a> or
Tel: <a href="file://localhost/tel/%252B82-42-472-7464">+82-42-472-7464</a>.</span><span style="font-size:9.5pt;font-family:Arial"></span></p>
<p class="MsoNormal" style="background-image:initial;background-repeat:initial"><span style="font-size:9.5pt;font-family:Arial"> </span></p>
<p class="MsoNormal" style="background-image:initial;background-repeat:initial"><span lang="EN" style="font-size:9.5pt;font-family:Arial">S-G2: Ionospheric Density Variability in the Polar Region</span><span style="font-size:9.5pt;font-family:Arial"></span></p>
<p class="MsoNormal" style="background-image:initial;background-repeat:initial"><span lang="EN" style="font-size:9.5pt;font-family:Arial">• Session Conveners: Session Conveners: Geonhwa Jee
(Korea Polar Research Institute, Korea) and Qian Wu (High Altitude Observatory,
National Center for Atmospheric Research, USA)</span><span style="font-size:9.5pt;font-family:Arial"></span></p>
<p class="MsoNormal" style="background-image:initial;background-repeat:initial"><span lang="EN" style="font-size:9.5pt;font-family:Arial">Ionosphere in the polar region has a key role in
receiving energy from the sun via the magnetosphere-ionosphere coupling. The
received energy in the polar region is not restricted to the polar region but
it has also profound effects on the global ionosphere and thermosphere.
Therefore, it is critical to understand how the polar ionospheric density
varies with various geophysical conditions. In this session, we will overview
the current observational and numerical modeling efforts to describe the
ionospheric density variability in the polar region. Also discussed will be the
thermospheric effects on the ionospheric density in the polar region.</span><span style="font-size:9.5pt;font-family:Arial"></span></p>
<p class="MsoNormal" style="background-image:initial;background-repeat:initial"><span lang="EN" style="font-size:9.5pt;font-family:Arial"> </span><span style="font-size:9.5pt;font-family:Arial"></span></p>
<p class="MsoNormal" style="background-image:initial;background-repeat:initial"><span lang="EN" style="font-size:9.5pt;font-family:Arial">S-G3: Radar probing for the Ionospheric variability</span><span style="font-size:9.5pt;font-family:Arial"></span></p>
<p class="MsoNormal" style="background-image:initial;background-repeat:initial"><span lang="EN" style="font-size:9.5pt;font-family:Arial">• Session Conveners: Session Conveners: Young-Sil Kwak
(Korea Astronomy and Space Science Institute, Korea) and Yuichi Otsuka
(Institute for Space-Earth Environmental Research, Nagoya Univ., Japan)</span><span style="font-size:9.5pt;font-family:Arial"></span></p>
<p class="MsoNormal" style="background-image:initial;background-repeat:initial"><span lang="EN" style="font-size:9.5pt;font-family:Arial">Ionosphere variations cause diffraction of the radio
waves that can be responsible for scintillation, fading, and disruption of the
propagating signals. As radar is powerful instrument probing the ionospheric
parameters, radars have been used to describe the ionospheric variabilities
since several decades. In this session, the current radar observational efforts
to investigate the ionospheric variabilities in low-, mid- and high-latitude
regions will be addressed. We discuss generation mechanisms of the
irregularities associated with equatorial spread F (ESF), auroral and equatorial
electrojets, sporadic E, medium-scale traveling ionospheric disturbances and so
on. Coupling processes between E and F regions are also interesting. Recently,
advanced application of post-beam steering and radar imaging techniques allow
showing two-dimensional fine structure of the irregularities. This session
welcomes all scientific and technical papers dealing with the ionospheric
irregularities at all latitudinal regions.</span><span style="font-size:9.5pt;font-family:Arial"></span></p>
<p class="MsoNormal" style="background-image:initial;background-repeat:initial"><span lang="EN" style="font-size:9.5pt;font-family:Arial"> </span><span style="font-size:9.5pt;font-family:Arial"></span></p>
<p class="MsoNormal" style="background-image:initial;background-repeat:initial"><span lang="EN" style="font-size:9.5pt;font-family:Arial">S-G4: Satellite Probing for the Ionospheric Variability</span><span style="font-size:9.5pt;font-family:Arial"></span></p>
<p class="MsoNormal" style="background-image:initial;background-repeat:initial"><span lang="EN" style="font-size:9.5pt;font-family:Arial">• Session Conveners: Jaeheung Park (Korea Astronomy and
Space Science Institute, Korea) and Charles Lin (National Cheng Kung
University, Taiwan)</span><span style="font-size:9.5pt;font-family:Arial"></span></p>
<p class="MsoNormal" style="background-image:initial;background-repeat:initial"><span lang="EN" style="font-size:9.5pt;font-family:Arial">Ionospheric variability is an important factor affecting
radio wave propagation. As satellite observations can cover a wider spatial
range over the globe, they have made great contributions to studying the
ionospheric variability and dynamics in addition to existing ground-based
observations. This session solicits ionospheric studies achieved with satellite
observations. Recent advances and overview of forthcoming innovative satellite
missions dedicated to the related topic will also be addressed.</span><span style="font-size:9.5pt;font-family:Arial"></span></p>
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<div><br></div>-- <br><div class="gmail_signature"><div dir="ltr"><div><div><div>Qian Wu<br></div>High Altitude Observatory<br></div><div>National Center for Atmospheric Research</div>P.O.Box 3000<br></div>Boulder, Co 80307-3000<br>(303) 497 2176<br>(303) 497 2180<br></div></div>
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