Magnetic satellite missions: where have we been and where are we going?
Author:
- Mioara MandeaMMMioara Mandea
- 24 July 2006
- journal article
- Published by MathDoc/Centre Mersenne in Comptes Rendus. Géoscience
- Vol. 338 (14-15) , 1002-1011
Abstract
High-quality magnetic observations have been obtained in recent years from a number of satellite missions. I discuss here the issues regarding the multi-year low-orbit satellite missions: Ørsted, CHAMP and SAC-C, and briefly what is expected from the European Space Agency's forthcoming Swarm constellation. The magnetic satellite data, combined with ground-based data, have provided unique opportunities for studying the core magnetic field and its secular variation, core flow, mantle conductivity and lithospheric composition, as well as the dynamics of the ionospheric and magnetospheric currents. A few examples of recent improvements in our knowledge of the magnetic field are presented, together with future investigations in measuring and modelling the Earth's magnetic field.Keywords
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