Abstract
Using data from three magnetic observatories across the magnetic dip equator in Nigeria, a method is devised which yields daily values of jet position, width and current intensity. Altogether 156 undisturbed days ( Cp ≤ 1.2) have been used in the analysis for three different seasons. The three jet characteristics, position, width and total current are found to vary considerably from day to day. Seasonal changes in the jet have been obtained using seasonal mean values of its characteristics. The electrojet has been found to move with season towards the summer hemisphere. The movement between December and June is 26 ± 7 km. The jet increases in width during the northern summer, when the sun is over the current layer. No significant change in its total current between seasons is detected.
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