Convective-region geometry as the cause of Uranus' and Neptune's unusual magnetic fields

@article{Stanley2004ConvectiveregionGA,
  title={Convective-region geometry as the cause of Uranus' and Neptune's unusual magnetic fields},
  author={Sabine Stanley and Jeremy Bloxham},
  journal={Nature},
  year={2004},
  volume={428},
  pages={151-153}
}
The discovery of Uranus' and Neptune's non-dipolar, non-axisymmetric magnetic fields destroyed the picture—established by Earth, Jupiter and Saturn—that planetary magnetic fields are dominated by axial dipoles. Although various explanations for these unusual fields have been proposed, the cause of such field morphologies remains unexplained. Planetary magnetic fields are generated by complex fluid motions in electrically conducting regions of the planets (a process known as dynamo action), and… 
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