Horizontal transmission of the polar electric field to the equator

摘要: Abstract A mode which makes possible the instantaneous transmission of polar ionospheric electric field to equator is obtained. The problem solved analytically as an initial-boundary value by assuming a plane Earth-ionosphere waveguide system composed metallic ionosphere with vertical static magnetic and perfectly conducting Earth, TM0 (zeroth-order transverse magnetic) excited propagates instantaneously low-latitude accompanying same direction field. simultaneous occurrence PRI (preliminary reverse impulse) SC∗ DP-2 geomagnetic variations in high-latitude equatorial regions are interpreted terms originated associated mode. geometrical attenuation transmitted due finite scale causes disappearance at low-latitudes, but appears again dayside region because enhanced conductivity. twin current vortices for Hall caused scale. It suggested that direct flows between magnetosphere via ionosphere, when large generated magnetosphere. From mid-latitude part this current, may be mapped upward along lines force into low L-value hydromagnetic result penetration magnetospheric plasmasphere achieved way waveguide.