Possible self-consistent mechanism of formation and disintegration of a ring current

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   One of possible self-consistent mechanism of formation and disintegration
   of a ring current (RC) is offered in this work. It is known, that on the
   main phase of magnetosphere disturbance at low and average latitudes there
   is a reduction of a horizontal component of a geomagnetic field, and on
   the restored phase the field grows and comes back practically to an
   initial level. This phenomenon is explained by formation and
   disintegration RC, concentrated basically in the field of geomagnetic
   equator on distances equal to several radiuses from a surface of the
   Earth. At the same time in magnetosphere areas outside of RC (the maximum
   is located in an interval L?3-4) it should be expected the return picture:
   the magnetic field grows on the main phase of magnetic storm, and on the
   reductional phase it decreases up to the unperturbed meaning.
   The analysis has shown, that at such changes of a field in external and
   internal areas (in relation to RC) the direction of particles movement and
   the change of its energy has various character. In internal area of RC on
   the main phase of magnetic storm the particles move from the Earth and
   also cool down, and on the reductional phase ? to the Earth, and heat up.
   In external area of a ring current a picture is opposite: on the main
   phase the charged particles will move to the Earth (to current ring ) and
   thus to be heated up, and on the reductional phase ? leave from the Earth
   (from a ring) and to cool down. Hence, on the main phase of magnetic storm
   from side to side of an arrangement of maximum RC there are natural
   conditions, at which the ring current can amplify at the expense of
   opposite movement of the charged particles to it. At the same time on the
   reductional phase the charged particles move from a ring current, causing
   thus its additional reduction. The beginning of disintegration of RC is
   weakening Solar wind (SW) and return of the magnetosphere to the
   conditions of stationary SW.