Solar flare effects in geomagnetic field at Indian stations—Part III : Alibag, outside equatorial electrojet

Abstract

The paper describes the solar flare effects (SFEs ) in horizontal (<i>H</i>), eastward (<i>Y</i>)<i> </i>and vertical (<i>Z</i>) fields at Alibag, a station outside the equatorial electrojet current region. The amplitude of SFE(<i>H</i>)<i> </i>is a broad maximum around noon , while SFE(<i>Y</i>) is positive in the forenoon and minimum in the afternoon hours. The SFE(<i>Z</i>) field seems to be negative at any time of the day. These features are consistent with the effects expected of a normal <i>S</i>_q current over the station.