Arora, B.R.; Campbell, W.H.; Schiffmacher, E.R.
(J. Geomag. Geoelectr., v.47, p.653-665,1995., 1995)
The electrical conductivity profile of the Earth at depths of about 50 to 500 km was determined using the quiet ionospheric current variations observed at a line of stations near 75° East longitude. We found conductivity ...