On the nearly axially-symmetrical model of the hydromagnetic dynamo of the earth |
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Authors: | SI Braginsky |
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Institution: | Institute for Physics of the Earth, Academy of Sciences, Moscow U.S.S.R. |
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Abstract: | A short review of the present state of the nearly axially-symmetrical dynamo model is given. A simplified theory for hydromagnetic dynamos taking into account the forces acting in the Earth's core is considered. The role of weak core-mantle friction is discussed and a form of solution is suggested which is characterized by a large geostrophic velocity in the core and by a boundary layer of a new type. The consequences of such a model (called model Z) for the Earth's dynamo are discussed. |
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