On the precession driven geodynamo

Pleiades Publishing Ltd - Tập 42 - Trang 460-466 - 2006
S. L. Shalimov1
1Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, Moscow, Russia

Tóm tắt

Formation of flow structures in the Earth’s liquid core enclosed in a precessing and rotating shell (mantle) is examined within the hydrodynamic approach. The kinematics and energetics of the motions in the Earth’s core initiated by precession allow one to regard these motions as a possible geodynamo mechanism at an early evolutionary stage of the Earth (prior to the formation of the solid core). The influence of the precession driven geodynamo on the stability of the geomagnetic field is discussed.

Tài liệu tham khảo

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