The Nature of the Earth’s Electromagnetic Field and Mechanism of its Energy Generation

Abstract

We assume that the Earth’s electromagnetic field is generated by the magneto-hydro-dynamo action provided by the planet’s liquid metal core. Its essence is in the motion of the conducting liquid core where self-excitation of the electric and magnetic poloidal (meridional) and toroidal (parallel) fields occurs. During rotation of the inner planet’s shells with different angular velocities, in the case of asymmetric thermal convection of the shell mass, the intensity of the fields is increased. This condition for the Earth is achieved because the rotation and magnetic axes do not coincide and thermal convection supposedly takes place. But a physically justified theory of the Earth’s phenomenon of an electromagnetic field is absent. There is no explanation of the mechanism of generation of the energy of this field except for the general physical principle of mass and charge interaction. Also, ideas or hypotheses about the source of replenishment of the Earth’s energy that is spent for gravitational and thermal irradiation are absent. The only source of solar and star irradiated energy is accepted to be interior nuclear fusion.