F-region effects following two severe magnetic storms over Delhi

Mahajan, K. K (1967) F-region effects following two severe magnetic storms over Delhi Journal of Atmospheric and Terrestrial Physics, 29 (1). pp. 61-71. ISSN 0021-9169

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Official URL: http://www.sciencedirect.com/science/article/pii/0...

Related URL: http://dx.doi.org/10.1016/0021-9169(67)90158-4

Abstract

F-region effects following two severe magnetic storms over Delhi are studied with N(h) profiles deduced from C4 ionograms. The major effects are a reduction in the electron density at heights above 200 km, and a considerable increase in the height of the maximum electron density, hmF2, during the night; there being little or no change in hmF2 during the sunlit hours. The effects are examined with the help of a parameter R0, which is the ratio of the loss coefficient, β and the vertical transport velocity, w. The parameter R0 is found to increase considerably on the storm nights. This increase is concluded as an increase in the loss coefficient and a decrease in the transport velocity. Further analysis of R0 indicates that the transport velocity decreases with height on storm nights in contrast to an increase with height on quiet nights.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
ID Code:75756
Deposited On:27 Dec 2011 12:34
Last Modified:27 Dec 2011 12:34

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