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Some Unusual Discrete Vlf Emissions Observed at a Low-latitude Ground Station at Agra : Volume 15, Issue 8 (30/11/-0001)

By Singh, B.

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Book Id: WPLBN0003977675
Format Type: PDF Article :
File Size: Pages 4
Reproduction Date: 2015

Title: Some Unusual Discrete Vlf Emissions Observed at a Low-latitude Ground Station at Agra : Volume 15, Issue 8 (30/11/-0001)  
Author: Singh, B.
Volume: Vol. 15, Issue 8
Language: English
Subject: Science, Annales, Geophysicae
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
-0001
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Singh, B. (-0001). Some Unusual Discrete Vlf Emissions Observed at a Low-latitude Ground Station at Agra : Volume 15, Issue 8 (30/11/-0001). Retrieved from http://worldlibrary.in/


Description
Description: Department of Physics, R. B. S. College, Bichpuri, Agra-283105, India. A detailed analysis of the VLF emissions data obtained during occasional whistler campaigns at the low-latitude ground station Agra (geomagnetic latitude 17°1' N, L = 1.15) has yielded some unusual discrete VLF emissions of the rising type. These include (1) emissions occurring at time intervals increasing in ge ommetrical progression, (2) emissions occuring simulta neously in different frequency ranges and (3) emissions observed during daytime. In the present study, the observed characteristics of these emissions are described and interpreted. It is shown that the increasing time delay between different components of the emissions match closely with the propagation time delays between different hops of a whistler of dispersion 19 s1/2, the unusual occurrence of the emissions in two different frequency ranges approximately at the same time may possibly be linked with their generation at two different locations, and the occurrence of emissions during daytime may be due to propagation under the influence of equatorial anomaly.

Summary
Some unusual discrete VLF emissions observed at a low-latitude ground station at Agra

 

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