A study of blanketing sporadic E in the Indian equatorial region

Bhargava, B. N. ; Subrahmanyan, R. V. (1964) A study of blanketing sporadic E in the Indian equatorial region Proceedings of the Indian Academy of Sciences, Section A, 60 (4). pp. 271-285. ISSN 0370-0089

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Official URL: http://www.ias.ac.in/j_archive/proca/60/4/271-286/...

Related URL: http://dx.doi.org/10.1007/BF03046416


The paper describes the nature of the sporadic E layer of blanketing type observed at Kodaikanal (Lat. 10°.2 N; Long. 77°.5 E; dip: 3°.5 N). It is shown that in the Indian equatorial region, the frequency of occurrence of this type of Es is abnormally large when compared to similar latitudes in the west and that changes of large magnitudes occur in the F2 layer of the ionosphere as well as in the horizontal force of the earth's magnetic field simultaneously with the appearance of the blanketing Es. Lunar effects have also been shown to exist both in the time of appearance of blanketing Es and in its strength. Some evidence exists to show that blanketing Es as well as the blanketing frequency, fb Es, have a biennial maximum. These characteristics are discussed as part of the Far East Anomaly.

Item Type:Article
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Deposited On:10 Dec 2010 11:56
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