Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/4689
Title: Night time geomagnetic effects of solar flares
Authors: Sastri, J. H
Keywords: Diurnal Variations
Geomagnetism
Magnetic Variations
Solar Activity Effects
Solar Flares
Annual Variations
Daytime
Ionospheric Currents
Night Sky
Solar X-Rays
Issue Date: Jul-1975
Publisher: European Geophysical Society
Citation: Annales de Geophysique, Vol. 31, pp. 389 - 393
Abstract: A study of the normal run magnetogram data of two equatorial stations, Kodaikanal (Geo. Long. 77 deg 28 min E, Dip 3.5 deg N) and Huancayo (Geo. Long. 75 deg 20 min W, Dip 2.0 deg N), for a three year period (1969-1971), showed that solar flare effects on geomagnetic variation do occur even in the dark hemisphere. The night time geomagnetic effects of solar flares as observed at Kodaikanal are noticed to exhibit a distinct shape and possess sufficient amplitude in the H-component (more than 4 times the distance from the earth's center at the maximum). A comparative study of the characteristics of the night time geomagnetic effects of solar flares observed at Kodaikanal in relation to the simultaneous day time effects observed at Huancayo, revealed that the night time effects are characterized by slower rise and decay compared to day time effects.
URI: http://hdl.handle.net/2248/4689
ISSN: 0003-4029
Appears in Collections:IIAP Publications

Files in This Item:
File Description SizeFormat 
Night time geomagnetic effects of solar flares282.62 kBAdobe PDFThumbnail
View/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.