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A Study On The Final Phase Of The Bardarbunga Volcano Of 2015 Using Vlf Wave Of Nrk Signal Of Iceland Received At Kiel Longwave Monitor

Journal: International Journal of Scientific & Technology Research (Vol.6, No. 1)

Publication Date:

Authors : ; ; ; ; ; ; ;

Page : 1-6

Keywords : VLFLF; D-layer; volcanic activity; sunrise terminator time; D-layer dissipation time; night time fluctuation of VLF amplitude; day time fluctuation of VLF amplitude;

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Seismo-ionospheric changes often affect the VLF waves resulting in possible changes in the terminator times and often lead to night time fluctuations. The Bardarbunga volcano which started on 2014 ended on the last days of February of 2015. In this paper we present the results of the VLF analysis of the first three months of 2015 using a signal of 37.50 KHz where an analysis on the sunset terminator time D-layer dissipation time daytime fluctuation and night time fluctuation of the VLF amplitude was done. We contrasted the values of these parameters for the first two months of 2015 where the volcano was active with third month of 2015 when the volcano had completely subsided. The Sunset terminator time and the daytime fluctuations in the VLF amplitude for the first two months showed no major anomalies. The anomaly in the D-layer disappearance time and night time fluctuation count reached its peak values for the volcanically active months.

Last modified: 2017-06-11 22:58:29