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http://hdl.handle.net/2248/3774
Title: | Response of the equatorial ionosphere to solar magnetic sector crossing |
Authors: | Sastri, J. H |
Keywords: | Earth Ionosphere:Solar Wind Solar Wind:Earth Ionosphere |
Issue Date: | Apr-1985 |
Publisher: | National Research Council of Canada |
Citation: | Canadian Journal of Physics, Vol, 63, No. 4, pp. 472 - 474 |
Abstract: | A superposed epoch analysis has been carried out of h′F values at Kodaikanal (10°14′N, 77°28′E, dip 3.0°N) pertaining to years of high sunspot activity using solar wind sector boundary passages past the earth as key days. It is found that there is a reduction in h′F values at 2000 LT 1 or 2 days after the sector boundary crossing. The amplitude of this effect which is noticed with both (+, −) and (−, +) sector boundary crossings is higher in equinoxes than in solstices. The response of the equatorial F region to sector boundary crossing seems to originate from perturbations of the equatorial east–west electric field in the post-sunset period associated with the enhancement in geomagnetic activity in the wake of sector boundary crossing. |
Description: | Open Access |
URI: | http://hdl.handle.net/2248/3774 |
ISSN: | 0008-4204 |
Appears in Collections: | IIAP Publications |
Files in This Item:
File | Description | Size | Format | |
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Response of the equatorial ionosphere to solar magnetic sector crossing | Open Access | 197.53 kB | Adobe PDF | View/Open |
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