Electromagnetically driven westward drift and inner-core superrotation in Earth’s core

@article{Livermore2013ElectromagneticallyDW,
  title={Electromagnetically driven westward drift and inner-core superrotation in Earth’s core},
  author={Philip W. Livermore and Rainer Hollerbach and Andrew Jackson},
  journal={Proceedings of the National Academy of Sciences},
  year={2013},
  volume={110},
  pages={15914 - 15918}
}
Significance Seismic probing of the earth’s deep interior has shown that the inner core, the solid core of our planet, rotates slightly faster (i.e., eastward) than the rest of the earth. Quite independently, observations of the geomagnetic field provide evidence of westward-drifting features at the edge of the liquid outer core. This paper describes a computer model that suggests that the geomagnetic field itself may provide a link between them: The associated electromagnetic torque currently… 

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