ABSTRACT
The numerical models that have been successful in reproducing observed diurnal variations of geomagnetic field perturbations include: J. P. Schieldge et al., and C. Hanuise et al. J. M. Forbes and R. S. Lindzen presented the first fully three-dimensional model of the equatorial electrojet (EEJ). They find coupling of the meridional and zonal current structures of the EEJ. Calculation with a steady zonal wind of speed 100 m/s had practically no effect on the latitudinal width of EEJ. The comparison is based on certain parameters that depict the structures and features of hourly latitudinal profiles of EEJ currents and magnetic field. The observed winds made a remarkable difference in their successful reproduction of observed features of EEJ. The westward currents on the flanks of the dip equator play such a crucial role in the manifestations of the EEJ that every effort should be made to describe clearly how it arises.
