A new early-morning ionospheric phenomenon

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DC Field	Value	Language
dc.contributor.author	Bhargava, B. N	-
dc.date.accessioned	2010-03-11T16:34:38Z	-
dc.date.available	2010-03-11T16:34:38Z	-
dc.date.issued	1952-12	-
dc.identifier.citation	Nature, Vol. 170, No. 4336, pp. 983 - 984	en
dc.identifier.issn	0028-0836	-
dc.identifier.uri	http://hdl.handle.net/2248/5069	-
dc.description	Restricted Access	-
dc.description.abstract	EARLY in January 1952, when ionospheric observations were started at Kodaikanal (10° 14' N., 77° 28' E.), an interesting phenomenon, which, to my knowledge, has not hitherto been reported, was observed in the vertical-incidence virtual height/critical frequency records. It was found that on most of the mornings ionospheric echoes ceased to return some minutes to several hours before sunrise and reappeared at about ground sunrise time. Systematic daily observations were started early in March and h'f records taken at short intervals beginning about an hour before sunrise daily with the view of examining the frequency of occurrence and any possible seasonal characteristics of this `no echo' phenomenon.	en
dc.language.iso	en	en
dc.publisher	Nature Publishing Group	en
dc.relation.uri	http://www.nature.com/doifinder/10.1038/170983b0	en
dc.rights	© Nature Publishing Group	en
dc.subject	Early-Morning Ionospheric Phenomenon	en
dc.subject	Ionospheric Observations	en
dc.subject	Ionospheric Echoes	en
dc.title	A new early-morning ionospheric phenomenon	en
dc.type	Article	en
Appears in Collections:	IIAP Publications

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