Magnetic flux expulsion from the core as a possible cause of the unusually large acceleration of the north magnetic pole during the 1990s
International audience The north magnetic pole (NMP) has been drifting in a north‐northwesterly directionsince the 19th century. Both local surveys and geomagnetic models derived fromobservatory and satellite data show that the NMP suddenly accelerated during the 1990s.Its speed increased from about...
Published in: | Journal of Geophysical Research |
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Main Authors: | , , |
Other Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2010
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Subjects: | |
Online Access: | https://hal-insu.archives-ouvertes.fr/insu-01288849 https://hal-insu.archives-ouvertes.fr/insu-01288849/document https://hal-insu.archives-ouvertes.fr/insu-01288849/file/jgrb7143.pdf https://doi.org/10.1029/2009JB007143 |