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Publikováno v:
Journal of Geophysical Research : Solid Earth
Journal of Geophysical Research : Solid Earth, American Geophysical Union, 2010, 115 (B5), pp.B05105. ⟨10.1029/2009JB006994⟩
Chulliat, A & Olsen, N 2010, ' Observation of magnetic diffusion in the Earth's outer core from Magsat, Ørsted, and CHAMP data ', Journal of Geophysical Research. Solid Earth, vol. 115, no. B5, B05105, pp. 1-13 . https://doi.org/10.1029/2009JB006994
Journal of Geophysical Research : Solid Earth, American Geophysical Union, 2010, 115 (B5), pp.B05105. ⟨10.1029/2009JB006994⟩
Chulliat, A & Olsen, N 2010, ' Observation of magnetic diffusion in the Earth's outer core from Magsat, Ørsted, and CHAMP data ', Journal of Geophysical Research. Solid Earth, vol. 115, no. B5, B05105, pp. 1-13 . https://doi.org/10.1029/2009JB006994
The frozen flux assumption consists in neglecting magnetic diffusion in the core. It has been widely used to compute core flows from geomagnetic observations. Here we investigate the validity of this assumption over the time interval 1980-2005, using
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https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f2602cb4033b401927007cd73d6b1364
https://hal.archives-ouvertes.fr/hal-00540455/document
https://hal.archives-ouvertes.fr/hal-00540455/document