Experimental Parameters for the Volland Convection Electric Field Model

The data obtained by some ground based and space-craft observations are gathered to give the experimental parameters for Vollaml's model of magnetospheric convection electric field. The results are well consistent with the plasmapause characteristics measured by the satellite GEOS-2 and with the Harang discontinuity dynamics measured by the STAREradars and with the magnetospheric-ionospheric electric fields measured in recent years. It is shown that the Volland's model with parameters represented by experimental results can be used to study the magnetosphere and ionosphere.