A case for variational geomagnetic data assimilation: insights from a one-dimensional, nonlinear, and sparsely observed MHD system

Secular variations of the geomagnetic field have been measured with a continuously improving accuracy during the last few hundred years, culminating nowadays with satellite data. It is however well known that the dynamics of the magnetic field is linked to that of the velocity field in the core and...

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Bibliographic Details
Main Authors: A. Fournier, C. Eymin, T. Alboussière
Format: Article
Language:English
Published: Copernicus Publications 2007-01-01
Series:Nonlinear Processes in Geophysics
Online Access:http://www.nonlin-processes-geophys.net/14/163/2007/npg-14-163-2007.pdf