Analisis Kejadian Badai Magnetik Berdasarkan Data Variasi Harian Magnetik di Kota Kupang

Gertrudis V. Kahar • Abdul Wahid • Hadi Imam Sutaji
Journal article Jurnal Fisika • 2018


     The research about analysis of magnetic storm events in Kupang City from October 2014 to September 2016 has been done. The purpose of this study is to determine the characteristic of storm events and the period of emergence magnetic storm from Kupang City. The data used is the daily magnetic variation data obtained from Meteorogical Climatological and Geophysical Agency in Kupang City. The data processing using by Microsoft Excel software to create graph data of the earth magnetic components against time and Matlab 2011 sofware to   determining the periodicity of magnetic storm events using Fast Fourier Transform (FFT). From the results of data processing, the characteristic of magnetic storm events in the study area from October 2014 to September 2016 were for the maximum magnetic interference activity level occurring on june 22th, 2015 due to burst of CME marked by the value of K index = 8, A index = 54.875 and degradation value of DST = -121 nT, so category middle storm and minimum magnetic interference activity level occurred  on February 10th, 2015 due to burst of CME and flare marked with value K index = 3, A index =11.5, and decreasing value of DST =-17 nT, thus categorized relatively quietly. The period of occurrence magnetic activity from October 2014 to September 2016 is within a period of one daily to ten daily.   Keywords : Daily magnetic variation, magnetic storm, K index, A index.




Jurnal Fisika

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