Meeting Announcement: IAGA 11th Scientific Assembly, 2009 On behalf of the Local Organizing Committee (LOC) at the Geodetic and Geophysical Research Institute of the Hungarian Academy of Sciences, we are delighted to announce that the 11th Scientific Assembly of IAGA will be held from August 23-30, 2009 in Sopron, Hungary. For more information, please access the conference web site at http://www.iaga2009sopron.hu Looking forward to seeing You in Sopron, Laszlo Szarka, Chair of LOC Gabriella Satori, Co-chair Viktor Wesztergom, Co-chair Bertalan Zieger, Co-chair Preliminary Scientific Programme (approved symposia) Division I Internal Magnetic Fields I01. Planetary Dynamos: theory, models, observation and experiment I02. Geomagnetic jerks: observations and theory I03. Magnetospheric processes and their consequenses for MT response Functions I04. Continental Lithospheric formation and deformation I05. Near surface and environmental studies using electromagnetic induction I06. Deep mantle structure imaged by electromagnetic observations using long-period MT, cables and satellites I07. Crustal tectonic processes constrained by electromagnetic observations I08. EM modelling and inversions I09. EM studies in the ocean I10. Kinematics and geodynamics: global and regional inferences from paleomagnetic data I11. Magneto-cyclostratigraphy as a tool for high-resolution time frames I12. Developments in magnetic anisotropy I13. Paleointensity Results, methodological advances and open issues I14. Paleomagnetic, geomagnetic and rock-magnetic procedures: Field tests, instrumentation, statistics I15. Paleo-geomagnetic data and geodynamo models I16. Rock magnetism: Theory, experiments and observations I17. Environmental magnetism and biomagnetism I18. Paleomagnetism and rock magnetism of anomaly source rocks I19. Open poster session Division II Aeronomic Phenomena II01. Electromagnetic coupling related to lightning-induced phenomena from the troposphere to the magnetosphere II02. New findings concerning the polar summer mesosphere lower thermosphere/ionosphere region including the role of dusty plasmas II03. Long-term changes in the mesosphere-lower thermosphere and ionosphere II04. Solar and lower atmosphere forcing of the middle atmosphere-ionosphere system II05. Energetic particle precipitation into the atmosphere: sources and consequences II06. Equatorial atmosphere-ionosphere interactive processes: vertical and latitudinal coupling and magnetospheric forcing II07. Forcing of the middle and high latitude thermosphere from above and below II08. Remote sensing of the plasmasphere, and coupling to the ionosphere Division III Magnetospheric Phenomena III01. Magnetopaus and sheath processes III02. Substorm dynamics III03. Magnetosphere-ionosphere interactions and auroral processes III04. Perspectives from global models and synoptic observations: analysis techniques and data assimilation III05. Causes and evolution of plasma sheet pressure distribution Sources and sinks of the plasma sheet III06. Techniques and instrumentation in space plasma physics III07. Wave and particle dynamics in the ring current and radiation belts: Geomagnetic storms III08. Other magnetospheric worlds, planetary ionospheres and thermospheres III09. Conjugate and inter-hemispheric studies: IPY/IHY results III10. ULF waves III11. Reporter^(1)s review Division IV Solar Wind and Interplanetary Field IV01. New solar and interplanetary results IV02. From micro- to macro-scales in the heliosphere and magnetospheres IV03. IHY and universal processes IV04. CAWSES and ILWS IV05. Neutral-plasma interactions for planets, moons, asteroids, and comets IV06. Interplanetary radio emissions IV07. Reporter reviews Division V Geomagnetic Observatories, Surveys and Analyses V01. Connecting space and ground-based magnetic data for scientific benefit V02. Geomagnetic observatory practice, instrumentation and network V03. Geomagnetic jerks and rapid core field variations V04. Application, history and evolution of geomagnetic indices V05. Improved modelling of the lithospheric magnetic field V06. Tectonic interpretation of satellite, air-borne, ground and marine geomagnetic data V07. Results from the decade of geopotential research and future prospects V08. Reporter reviews Inter-Divisional Commission on Developing Countries DC01. Vertical couplings of low latitude middle atmosphere DC02. Deep mantle structure imaged by electromagnetic observations using long-period MT, cables, and satellites DC03. Low latitude ionosphere-thermosphere system in quiet and magnetically disturbed periods Inter-Divisional Commission on History H01. von Humboldt's legacy after 150 years H02. History of geomagnetic observations, observatories, & indices