Large-scale Irregularities In The Equatorial Ionosphere
Abstract
Variations in the Faraday fading period of the 40 MHz signal from satellite BE-B have been used to study large-scale irregularities in the equatorial ionosphere. It is found that the irregularities have sizes ranging from 50–400 km, with an average value of 160 km. The observed amplitudes lie between 0.15 and 3.3 per cent of the background total electron content and the latitude variation of amplitude shows a maximum at the magnetic equator and a minimum at a dip of about 22°S. It is suggested that the irregularities are caused by atmospheric gravity waves with a period of around 40 min. The irregularities occur mainly between 0600–1100 LT.
URI
http://www.sciencedirect.com/science/article/pii/0021916975900616http://hdl.handle.net/11295/66145
Citation
Journal of Atmospheric and Terrestrial Physics Volume 37, Issue 4, April 1975, Pages 663–667Publisher
University of Nairobi