Abstract:
A comprehensive study of the geomagnetic oscillations during the storm of 8 – 10 March 1970 is made using data obtained from equatorial stations. The oscillation characteristics during the three main phases of the storm have been computed from detailed spectral analysis of closed-spaced horizontal force data. Simultaneity or otherwise of the various modes of oscillations has been ascertained by coherence analysis of records of different pairs of stations, the results are discussed in the light of various observational results and magnetospheric models postulated thereon.
