ANALISIS INDEKS AKTIVITAS GEOMAGNET PADA SAAT BADAI GEOMAGNET 13 OKTOBER 2016

  • M. Fakhrul Islam Masruri Sekolah Tinggi Meteorologi Klimatologi dan Geofisika
  • Bayu Merdeka Tri Fristiyan Nanda Sekolah Tinggi Meteorologi Klimatologi dan Geofisika
Keywords: index, geomagnetic, storm

Abstract

Geomagnetic storms occur due to abnormal activity in the sun that affects the intensity of the solar wind. This storm is marked by changes in the value of daily variations of a large, fast and irregular magnetic field. The effects of geomagnetic storms around the earth can have an impact on human activity in outer space and on the earth's surface. One of the occurrences of geomagnetic storm ever recorded is on October 13, 2016. In determining the level of geomagnetic disturbance used geomagnetic index. The geomagnetic index is a simple measure that describes the magnetic activity derived from the ionosphere and the earth's magnetosphere. This study aims to analyze the geomagnetic index when the storm occurred on October 13, 2016. Geomagnetic indexes analyzed include K index, A index and Dst index, especially in the region of Sumatra. The data used are daily variation data of H (horizontal) magnetic field component of BMKG magnetometer sensor record at Gunungsitoli station, Tuntungan station, Sicincin station, Liwa station and Tangerang station. Based on the results of the analysis can be identified if the geomagnetic storm on October 13, 2016 includes strong geomagnetic storm criteria when viewed from the Dst index value that touches the number below -100 nT.

Published
2019-04-29
How to Cite
Islam Masruri, M. F., & Tri Fristiyan Nanda, B. M. (2019). ANALISIS INDEKS AKTIVITAS GEOMAGNET PADA SAAT BADAI GEOMAGNET 13 OKTOBER 2016. Jurnal Meteorologi Klimatologi Dan Geofisika, 5(2), 71-78. https://doi.org/10.36754/jmkg.v5i2.60