Abstract
In this paper we report pulsing hiss emissions observed at low latitude Indian station Varanasi (geomag. Lat.=14°55′N, Long.=153°55′E) in which intensity seems to decrease with increase in frequency. The bandwidth of the pulsing hiss also decreases with increase in frequency. The entire dynamic spectra has irregular structure and varied from pulse to pulse. It is proposed that pulsing hiss is generated through wave particle interaction near the geomagnetic equator and propagated to the earth in the whistler mode. Further, the micropulsations propagating along the geomagnetic field lines could modulate the growth rate of the wave resulting in the modulation of hiss intensity.
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More From: Journal of Atmospheric and Solar-Terrestrial Physics
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