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Title: Hybrid-mode propagation of whistlers at low latitudes
Authors: Singh, Umesh Pal
Singh, A K
Singh, R P
Singh, RN
Issue Date: Aug-1992
Publisher: NISCAIR-CSIR, India
Abstract: Whistlers recorded at Varanasi (geomag. lat. 14°55'N) during the period Jan. 1976-Aug. 1978 have been analysed. It is shown that the nighttime whistlers are characterized by extremely small dispersion of less than 15 s1/2. This feature supports the hypothesis of combined ground-ionosphere waveguide and field-aligned propagation known as hybrid mode of propagation. The lower cut-off frequencies of these whistlers have been evaluated and majority of these whistlers are found to lie in the low frequency range of 1.7-3.4 kHz.
Page(s): 246-249
ISSN: 0975-105X (Online); 0367-8393 (Print)
Appears in Collections:IJRSP Vol.21(4) [August 1992]

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