Fig. 6From: Global MHD simulation of magnetospheric response of preliminary impulse to large and sudden enhancement of the solar wind dynamic pressureDependence of FAC on solar wind dynamic pressure. The horizontal axis is the square root of the normalized pressure, and the vertical axis is the peak strength of the FAC for the PI signature in the ionosphere. Open triangles and open squares indicate the speed jump and density jump conditions, respectivelyBack to article page