Night time geomagnetic effects of solar flares

Sastri, J. H

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dc.contributor.author	Sastri, J. H
dc.date.accessioned	2009-07-30T10:12:13Z
dc.date.available	2009-07-30T10:12:13Z
dc.date.issued	1975-07
dc.identifier.citation	Annales de Geophysique, Vol. 31, pp. 389 - 393	en
dc.identifier.issn	0003-4029
dc.identifier.uri	http://hdl.handle.net/2248/4689
dc.description.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.	en
dc.language.iso	en	en
dc.publisher	European Geophysical Society	en
dc.relation.uri	http://adsabs.harvard.edu//abs/1975AnG....31..389S	en
dc.subject	Diurnal Variations	en
dc.subject	Geomagnetism	en
dc.subject	Magnetic Variations	en
dc.subject	Solar Activity Effects	en
dc.subject	Solar Flares	en
dc.subject	Annual Variations	en
dc.subject	Daytime	en
dc.subject	Ionospheric Currents	en
dc.subject	Night Sky	en
dc.subject	Solar X-Rays	en
dc.title	Night time geomagnetic effects of solar flares	en
dc.type	Article	en