Gyre-driven decay of the Earth’s magnetic dipole
The magnitude of the Earth’s magnetic dipole has decreased by 9% over the past 175 years. Here, the authors suggest that the rate of dipole decay is controlled by a huge gyre in the liquid metal outer core acting on a field asymmetry, and that decay is set to continue for the next few decades.
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Publishing Group
2016-01-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/ncomms10422 |