NASA NTRS · 19730012139
The equatorial electrojet satellite and surface comparison
Abstract
The OGO 4 and 6 (POGO) magnetic field results for the equatorial electrojet indicate that while the present models are approximately correct, the possibility of a westward component must be incorporated. The scatter diagrams of POGO amplitudes and surface data show a correlation. The ratios between the amplitudes estimated from surface data and those at 400 km altitude are as follows: India 5 to 8, East Africa (Addis Ababa) 4, Central Africa 3, West Africa (Nigeria) 3, South America (Huancayo) 5, and Philippines 5. The variation in the ratio is due to the conductivity structure of the earth in various zones.
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Cain, J. C., Sweeney, R. E.. 1972-12-01. The equatorial electrojet satellite and surface comparison. https://ntrs.nasa.gov/citations/19730012139
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