The dependence of the value of the field-aligned current in the ionosphere on the local time for low velocity of convection

For low velocities of convection, the normal component of the current near the magnetopause is calculated in a case when the magnetopause is a tangential discontinuity. It is shown that for the great pressure of the magnetospheric plasma this component of the current, closing through the ionosphere, create the global system of field-aligned currents which is consistent with the Triad data on the value, the direction and the distribution with the local time.