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