Very long sequences of geomagnetic activity and its annual variation

dc.contributor.author	Bhargava, B. N
dc.contributor.author	Naqvi, Ali. M
dc.date.accessioned	2010-03-09T15:27:39Z
dc.date.available	2010-03-09T15:27:39Z
dc.date.issued	1954-03
dc.identifier.citation	Nature, Vol. 173, pp. 498 - 500	en
dc.identifier.issn	0028-0836
dc.identifier.uri	http://hdl.handle.net/2248/5062
dc.description	Open Access	en
dc.description	Restricted Access
dc.description.abstract	IT is well known that moderate geomagnetic storms tend to recur after 27 days. Such storms are not related to sunspots, are almost always of gradual commencement type and are well marked only during two or three years immediately preceding the sunspot minima. A large number of such sequences, consisting of seven or eight storms, have been recorded; a few much longer sequences have been mentioned by Bartels1. The longest sequence of which we are aware in the literature consisted of seventeen recurrences between December 9, 1929, and March 13, 1931.	en
dc.language.iso	en	en
dc.publisher	Nature Publishing Group	en
dc.relation.uri	http://www.nature.com/nature/journal/v173/n4402/abs/173498a0.html	en
dc.rights	© Nature Publishing Group	en
dc.subject	Geomagnetic Activity	en
dc.subject	Sunspots	en
dc.subject	Storms	en
dc.subject	Moderate Geomagnetic Storms	en
dc.title	Very long sequences of geomagnetic activity and its annual variation	en
dc.type	Article	en