
TY  - JOUR
A1  - Kumar, Abhikesh 
A1  - Kumar, Sushil 
T1  - Decay form of the echo amplitude and echo phase of typical early/fast VLF event on 19.8 kHz signal
JF  - The South Pacific Journal of Natural and Applied Sciences
JO  - S. Pac. J. Nat. App. Sci.
Y1  - 2011
VL  - 28
IS  - 1
SP  - 74
EP  - 77
KW  - Early/fast VLF perturbation, VLF scattering, echo amplitude and echo phase.
UR  - https://doi.org/10.1071/SP10009 
N2  - 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. 
ER  -

