Preliminary reverse impulse in SC (Y) at off - equatorial stations in India

Rastogi, R G; Ahmed, K

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Please use this identifier to cite or link to this item: http://nopr.niscpr.res.in/handle/123456789/10166

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DC Field	Value	Language
dc.contributor.author	Rastogi, R G	-
dc.contributor.author	Ahmed, K	-
dc.date.accessioned	2010-08-30T09:50:32Z	-
dc.date.available	2010-08-30T09:50:32Z	-
dc.date.issued	2010-08	-
dc.identifier.issn	0975-105X (Online); 0367-8393 (Print)	-
dc.identifier.uri	http://hdl.handle.net/123456789/10166	-
dc.description	203-207	en_US
dc.description.abstract	The storm sudden commencement (SSC) at 2345 hrs UT on 24 September 1998, occurring at around local sunrise for Indian stations had produced uniquely two–step impulses on the H magnetogram at all stations. The amplitude ∆H had increased progressively from Trivandrum to Gulmarg, unlike the characteristic of the day time equatorial enhancement of SC (H). The solar wind parameters too showed abnormal variations during the period of SC. The magnetogram trace for declination (or eastward field Y) recorded a preliminary reverse impulse (PRI) close to the latitude of Sq focus at stations Gulmarg, Ujjain, Nagpur and Shillong. The PRI was absent in SC (Y) at equatorial stations Trivandrum and Pondicherry. This observations show a new complex relationship between the ionospheric dynamo and magnetospheric dawn / dusk electric field with the equatorial geomagnetic field around sunrise.	en_US
dc.language.iso	en_US	en_US
dc.publisher	CSIR	en_US
dc.relation.ispartof	94.20.Vv; 94.30.vf; 96.60.Vg	en_US
dc.rights	CC Attribution-Noncommercial-No Derivative Works 2.5 India	en_US
dc.source	IJRSP Vol.39(4) [August 2010]	en_US
dc.subject	Preliminary reverse impulse (PRI)	en_US
dc.subject	Sudden storm commencement (SSC)	en_US
dc.subject	Geomagnetic eastward component	en_US
dc.title	Preliminary reverse impulse in SC (Y) at off - equatorial stations in India	en_US
dc.type	Article	en_US
Appears in Collections:	IJRSP Vol.39(4) [August 2010]

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