Observations of unusual whistlers during daytime at Jammu |
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| Authors: | K K Singh R P Patel J Singh B Kumar A K Singh R P Singh B L Koul Lalmani |
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| Affiliation: | (1) Atmospheric Research Laboratory, Physics Department, Banaras Hindu University, Varanasi, India;(2) Physics Department, G. G. M. Science College, Canal Road, Jammu, India;(3) Vice-Chancellor, V. K. S. University, Arrah, Bihar, India;(4) Physics Department, National Institute of Technology Srinagar, Camp Classes, Old University Campus, Canal Road, Jammu, India |
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| Abstract: | In this paper, we report observations of unusual whistlers recorded at Jammu (geomag. lat. = 22°26′N; L = 1.17), India on March 8, 1999 during the daytime. They are interpreted as one-hop ducted whistlers having propagated along
higher L-values in closely spaced narrow ducts from the opposite hemispheres. After leakage from the duct, the waves might have propagated
in the earth-ionosphere waveguide towards the equator in surface mode. Tentative explanation of the dynamic spectra of these
events is briefly presented. |
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| Keywords: | Unusual whistlers ducted propagation waveguide mode one hop |
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