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IDII01 Low latitude atmosphere - ionosphere - magnetosphere
coupling, dynamics and energetics (including small scale coupling)
(Divisions II and III)
This symposium will address recent results on the dynamics and
energetics governing the atmosphere- ionosphere- magnetosphere-
interplanetary coupling processes of the equatorial region. Upward
transport of wave energy and momentum due to gravity, tidal and
planetary waves from below and extra-tropics control the phenomenology
of the equatorial atmosphere -ionosphere system. The observed large
zonal, day-to-day and interannual variability in the system dynamics
stems from these processes, while large variability arises also
from magnetospheric/interplanetary forcing through disturbance electric
fields and energy deposition at high latitudes with the consequent
coupling to equatorial latitudes. The objective is to better understand
the possible causes of these variabilities on different time scales,
and in function of longitude. Results will be welcome from ground
based and satellite borne experiments, and from modeling/theoretical
investigations, on the dynamics, electro dynamics, manifestations
of coupling process in terms of small and larges structures, and
variabilities in winds, temperatures, waves, plasma drifts, electric
fields and currents, in general, and especially, those related to
the major phenomena of the region: Equatorial plasma bubbles/Spread
F, Electrojet and Ionization Anomaly.
Convener: M. A. Abdu, Instituto Nacional de Pesquisas Espaciais
- INPE,Ave. dos Astronautas 1758; 12201 970, São Jose dos
Campos, SP, Brazil; tel +55 12 345 6797; fax +55 12 345 6990; e-mail:
abdu@dae.inpe.br
Co-conveners: Takuji Nakamura, Radio Science Center for Space
and Atmosphere (RASC), Kyoto University, Japan; B. T. Tsurutani,
Jet Propulsion Laboratory, USA
IDII02 Conjugate and interhemispheric polar studies (Divisions
II, III and V)
The Earth's magnetosphere is an electrodynamic system that couples
the northern and southern polar ionospheres, each with different
geophysical and electrodynamic properties. The unique physical characteristics
of the northern and southern polar regions must be considered in
models of the fully coupled, global, dynamic geospace system. For
example, the separation of geomagnetic and rotation poles, magnetic
field strength, and conductivity structures are different in the
two polar regions. Further, the solar wind electrodynamic coupling
to the northern and southern hemispheres can be very different depending
upon the orientation of the interplanetary magnetic field (IMF).
New instrument arrays in both hemispheres and the possibility of
simultaneous auroral imaging from satellites over both polar regions
provide new tools and opportunities to investigate interhemispheric
coupling. This symposium solicits the results from research that
contrasts and/or considers the coupled, interhemispheric, global
system, including consideration of when the two polar ionospheres
may not be coupled. Results from observational, theoretical and
computer simulation investigations are welcome.
Convener: C. R. Clauer, University of Michigan, Center for
Space Environment Modeling,2455 Hayward, Ann Arbor, MI 48109-2143,
USA; tel +1-734-476-6248; fax +1-734 763-0437; rclauer@umich.edu
Co-conveners: A. S Rodger, British Antarctic Survey, U.K.;
M. Freeman, British Antarctic Survey, U.K.; H. Yamagishi, National
Institute for Polar Research, Japan; V. Pilipenko, Institute of
the Physics of the Earth, Russia
IDII03 Space weather effects on the ionosphere (Division
II and IDCDC)
Space weather studies have become important due to the adverse
effects on satellites and disruptions in radio communications caused
by severe scintillation associated with some of such events occurring
in solar terrestrial system. Anomalies in electron density distribution
may also lead to errors in satellite based navigation. The session
will highlight the effect of space weather events on ionosphere
at low, middle and high latitudes. Studies dealing with the charged
particle precipitation at high latitudes and in the region of south
Atlantic Magnetic Anomaly will also be covered. The session will
also cover magnetosphere-high latitude-low latitude coupling under
geomagnetic quiet and disturbed conditions. Contributions on the
space weather effects on thermosphere at different latitudes are
also welcome.
Convener: H Chandra, Physical Research Laboratory, Navarangpura,
Ahmedabad 380 009, India; tel +91-79-26302129 ext. 4556; fax +91-79-26301502;e-mail:
hchandra@prl.ernet.in
Co-convener: Santi Basu, Air Force Research Laboratory, Hanscom
AFB, USA
IDII04 Electrodynamic processes in the equatorial and low latitudes:
Coupling with the global system (Division II and IDCDC)
Theoretical as well as experimental contributions related to
electrodynamic processes which play important roles in the transfer
of energy to and from the equatorial and low latitude ionospheric
regions and in the generation of plasma irregularities in these
regions are welcome. Special emphasis will be given to contributions
that deal with the coupling of these processes with the large scale
global system of fields and currents.
Convenor: Dr. P. Muralikrishna, Instituto Nacional de Pesquisas
Espaciais - INPE, C. P. 515, 12 201-970, São José
dos Campos-SP, Brazil; tel. +55 12 3945 7148 ; fax: +55 12 3945
6990; e-mail: murali@dae.inpe.br
Co-convenor: Dr. Archana Bhattacharya, Indian Institute of
Geomagnetism, Mumbai, INDIA
GAII01 Electrical energy deposition processes in the middle
and upper atmosphere
This session is intended to investigate the processes, which
deposit electrical energy in the middle and upper atmosphere, and
their consequences on the local, regional and global scale. Topics
of particular interest are transient luminous events such as sprites,
elves and jets, and their environmental initiation conditions. For
example, thunderstorm development, lightning activity, gravity-
and planetary waves, and the atmospheric conductivity. Consequences
of interest are atmospheric chemical composition changes, ionospheric
modification, infrasonic wave generation, troposphere/ionosphere
coupling and the impact on the global circuit.
Convener: M. Füllekrug, Institiut für Geophysik,
Universität Frankfurt am Main, Feldbergstrasse 47, D-60323
Frankfurt am Main, Germany, tel: +49 69 798 23959, fax: +49 69 798
23280, email: fuellekr@geophysik.uni-frankfurt.de
Co-conveners: Fernanda T. São Sabbas, Aeronomy Division
(DAE), Instituto Nacional de Pesquisas Espaciais (INPE), São
José dos Campos, Brazil; Elisabeth Blanc, Laboratoire de
Detection et de Geophysique, Comissariat a l'Energie Atomique (CEA),
Bruyeres le Chatel, France.
GAII02 Planetary ionospheres and thermospheres
Planetary ionospheres and thermospheres constitute the outer
layer of the planets' upper atmospheres through which they interact
with their space environment. In the long term, these layers partly
control the loss of chemical species and therefore the evolution
of planetary atmospheres. All of these phenomena depend on a diversity
of factors : planetary gravity, heliocentric distance, atmospheric/ionospheric
species sources and losses, magnetic field intensity and geometry
etc. Planetary exploration reveals this diversity in unprecedented
detail. This symposium will welcome all contributions to new observations,
interpretations and models of planetary thermospheres and ionospheres
contributing to the exploration and improved underestanding of this
diversity and of the underlying "universal" laws controling
the planets' upper atmospheres. New results on the Mars, Saturn
and Titan upper atmospheres provided by the Mars and Cassini/Huygens
missions will be particularly welcome.
Convener: M. Blanc, Observatoire Astronomique Marseille
Provence, 2 place Le Verrier, 13248 Marseille Cedex 04, France ;
tel. + 33 4 95 04 41 59 ; fax + 33 4 95 04 41 58 ; e-mail : blanc@oamp.fr
Co-Conveners: H. Waite, Southwest Research Institute, USA;
G. M. Keating, George Washington University, Virginia, USA
GAII03 Data assimilation techniques for the ionosphere-thermosphere-magnetosphere
system
Over the past decade, data assimilation models have become a
dominant tool for specifications and forecasts in meteorology and
oceanography. However, in the field of space physics these models
are only emerging, largely due to the lack of suitable data in the
past. However, this situation is changing rapidly with the significant
increase in the number of data that will become available over the
next decade. This data, which will come from a variety of sources,
will be available in real-time for assimilation into physics-based
specification and forecast models. In order to adapt modern data
assimilation techniques developed in meteorology and oceanography
to the near-Earth space regimes, a rigorous examination of the statistical
properties of the system is necessary. Papers dealing with data
sources, data quality issues, and data assimilation models and techniques
are welcome.
Convener: L.Scherliess, Utah State University, Center for
Atmospheric and Space Sciences, Logan, UT 84322, U.S.A; tel. +01
435 797 7189; fax +01 435 797 2992; e-mail ludger@gaim.cass.usu.edu
Co-convener: T. Matsuo, National Center for Atmospheric Research,
USA.
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