CEDAR email: 2016 URSI Asia-Pacific Radio Science Conference

Qian Wu qwu at ucar.edu
Thu Feb 18 16:26:03 MST 2016

Dear Friends,

The 2016 URSI Asia-Pacific Radio Science Conference (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.

The paper submission deadline for special sessions is on April 5, 2016, and
the guidelines for paper submission can be found at

 Should you have any queries regarding any of the matters mentioned in the
above, please do not hesitate to contact us on E-mail:
secretariat at aprasc2016.org or Tel: +82-42-472-7464.

S-G2: Ionospheric Density Variability in the Polar Region

• Session Conveners: Session Conveners: Geonhwa Jee (Korea Polar Research
Institute, Korea) and Qian Wu (High Altitude Observatory, National Center
for Atmospheric Research, USA)

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.

S-G3: Radar probing for the Ionospheric variability

• 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)

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.

S-G4: Satellite Probing for the Ionospheric Variability

• Session Conveners: Jaeheung Park (Korea Astronomy and Space Science
Institute, Korea) and Charles Lin (National Cheng Kung University, Taiwan)

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.

Qian Wu
High Altitude Observatory
National Center for Atmospheric Research
P.O.Box 3000
Boulder, Co 80307-3000
(303) 497 2176
(303) 497 2180
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