Solar activity and atmospheric tide effect on the polar conductivity and the vertical electric field in the stratosphere at low latitude Original Research Article

Balloonborne measurements of the polar conductivity and the vertical electric field were carried out over a period of 1984–1994 from Hyderabad, Central India. The conductivity values show positive correlation with solar activity between 20 and 35 km. Between 5 and 20 km the conductivity values show an anti-correlation with solar activity. The vertical electric field does not show solar cycle effect. However, the electric field and the conductivity show a semi-diurnal variation at balloon float altitude.