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World Journal of Engineering
Research and Technology

( An ISO 9001:2015 Certified International Journal )

An International Peer Reviewed Journal for Engineering Research and Technology

ISSN 2454-695X

Impact Factor : 5.924

ICV : 79.45

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Abstract

OVER-VIEW OF WHISTLER AND VLF ACTIVITY IN JAMMU AND KASHMIR

*Dr. Rajou Kumar Pandita Ph.D and Prof. Farooq Ahmed Sofi

ABSTRACT

In this paper, an up to date review of VLF emissions and whistler research in Jammu and Kashmir has been presented. Some new results of existence of Whistlers and VLF emissions, periodic emissions, hiss type of emissions and chorus emissions at our low latitude ground station, Jammu have been presented. Using an improved system, a unique type of Whistlers in addition to usual type of VLF emissions have been recorded for the first time at our ground station, Jammu from the year 1997-2001 during day and night time. From the dispersion analysis of the whistlers recorded at Jammu, it is found that all the Whistlers have extremely small dispersion (ESD) in the range of 5-10 s1/2, which clearly supports non-ducted propagation of day-time whistlers at low latitudes, completely in contrast with the earlier findings of ducted propagation of day-time whistlers in the presence of equatorial anomaly.

[Full Text Article]