xxth GENERAL ASSEMBLY OF IUGG VIENNA (AUSTRIA)

GAMl.l
*** CALL FOR PAPERS ***
DIVISION I - INTERNAL MAGNETIC FIELDS
Secular Variation; Modern,
Prehistorical
Jeremy Bloxham, Dept of Earth &
Harvard University, 20 Oxford
MA 02138,USA. [Fax: 617 495 8839]
Stanislav Braginsky
ASSEMBLY 1991
Historical and
Planetary
Street,
Sciences,
Cambridge
Topics covered will range f rom studies of the short period
secular variation based on modern observations, through
studies over hundreds of years from historical observations,
to studies spanning tens or hundreds of thousands of years
based on archaemagnetic and palaeomagnetic measurements. The
symposium should provide a developing insight into the
geodynamo.
GAM1.2 Geodynamo Processes and Boundary Conditions
Andrew M Soward, School of Mathematics,
The University, Newcastle upon Tyne NEl 7RU, UK.
David E Loper
Aspects of geodynamo theory will be considered, including core
dynamics but excluding direct numerical simulation which will
be addressed in another session. Conditions at the core-mantle
interface will be considered 1n relation to boundary
conditions for dynamo models, including structure, composition
and dynamics of the D" layer.
GAM1.3 Numerical Modelling of Planetary Dynamos
D R Fearn, Dept of Mathematics, Glasgow University,
University Gardens, Glasgow Gl2 8QW,UK.
K-H Radler
All aspects of numerical modelling of planetary dynamos will
be considered , with particular e mphasis on full
magnetohydrodynamic dynamos.
GAM1.4 Core Waves, Instabilities and Surface Flows
Kathy Whaler, Dept of Earth Sciences, Leeds
University, Leeds LS2 9JT, UK.
Ibrahim A Eltayeb
This session will provide a forum for models of
geomagnetically derived flows at the core surface and their
interpretation . Topics to be covered include waves in the
core , shown by the morphology of the field and the westward
drift, and the initiation, growth and propagation of
instabilities .
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