HR: 09:45h
AN: SM31E-08 INVITED    [Abstracts]
TI: Deformation methods in modelling of the inner magnetospheric electromagnetic fields
AU: * Toivanen, P K
EM: petri.toivanen@fmi.fi
AF: Finnish Meteorological Institute, Erik Palmenin Aukio 1, Helsinki, 00560, Finland
AB: Various deformation methods have been widely used in animation image processing. In common terms, they are mathematical presentations of deformations of an image drawn on an elastic material under stretching or compression of the material. Such a method has also been used in modelling of the magnetospheric magnetic fields, and recently been generalized to include also the electric fields. In this presentations, the theory of the deformation method and an application in a form of a new global magnetospheric electromagnetic field model are previewed. The main focus of the presentation is on the inner magnetospheric current systems and associated electromagnetic fields during quiet and disturbed periods. Finally, a short look at the modern deformation methods in image processing is taken. These methods include the Free Form Deformations and Moving Least Squares Deformations, and their future applications in magnetospheric field modelling are discussed.
DE: 2730 Magnetosphere: inner
DE: 2740 Magnetospheric configuration and dynamics
DE: 2753 Numerical modeling
DE: 2778 Ring current
DE: 7833 Mathematical and numerical techniques (0500, 3200)
SC: SPA-Magnetospheric Physics [SM]
MN: 2007 Fall Meeting