
%0 Journal Article
%A Kumar, Abhikesh 
%A Kumar, Sushil 
%T Decay form of the echo amplitude and echo phase of typical early/fast VLF event on 19.8 kHz signal
%J The South Pacific Journal of Natural and Applied Sciences
%D 2011/02/10
%V 28
%N 1
%P 74-77
%K Early/fast VLF perturbation, VLF scattering, echo amplitude and echo phase.
%R https://doi.org/10.1071/SP10009
%U https://www.publish.csiro.au/paper/SP10009 
%X In this paper, the echo amplitude (M) and echo phase (&#248;) of typical early/fast events on NWC (19.8 kHz) signal received at Suva, Fiji, are modelled to determine their form of recovery (decay). We applied logarithmic and exponential fitting formulas for M and &#248; obtained using a simple theoretical model of VLF wave scattering from lightning-induced electron density perturbations in the lower ionosphere and found that they are highly logarithmic. 
