IONOSPHERIC EFFECT OF NON-STORM HILDCAA (HIGH INTENSITY LONG DURATION CONTINUOUS AURORAL ACTIVITY)

Authors

  • Binod Adhikari Patan Multiple Campus, Patandhoka, Lalitpur
  • Roshan Kumar Mishra St. Xavier’s College, Maitighar, Kathmandu
  • Drabindra Pandit St. Xavier’s College, Maitighar, Kathmandu
  • Binod Bhattarai St. Xavier’s College, Maitighar, Kathmandu
  • Narayan Prasad Chapagain Patan Multiple Campus, Patandhoka, Lalitpur

DOI:

https://doi.org/10.3126/jist.v22i1.17737

Keywords:

Geomagnetic disturbances, HILDCAA, Coupling, Ionospheric parameters, Wavelet transform

Abstract

The magnetosphere of the Earth is temporarily changed by geomagnetic disturbances. Geomagnetic disturbances are caused by solar wind, shock wave or clouds of solar magnetic field. During their interactions energy is transferred into the magnetosphere. Apart from this, solar wind pressure also compresses the magnetosphere. Both kinds of interactions cause an increase in plasma movement through the magnetosphere and ionosphere. The geomagnetic disturbances may sustain for a few minutes to many hours depending upon the intensity of energy and particles released from the Sun. The geomagnetic disturbances are measured by geomagnetic indices for short periods of time. In this work, we discuss the impact of peculiar type of geomagnetic disturbances known as high intensity long duration continuous auroral activity on the Earth’s ionosphere. This analysis leads to understand the impact on communication system due to coupling between solar terrestrial environments. It will also broaden the various aspects on how ionospheric critical frequency (foF2), F2 layer peak density height (hmF2), high frequency (hF) and horizontal component of earth magnetic field can be lifted from lower to higher altitudes.

Journal of Institute of Science and Technology
Volume 22, Issue 1, July 2017, page: 34-40

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Published

2017-07-18

How to Cite

Adhikari, B., Mishra, R. K., Pandit, D., Bhattarai, B., & Chapagain, N. P. (2017). IONOSPHERIC EFFECT OF NON-STORM HILDCAA (HIGH INTENSITY LONG DURATION CONTINUOUS AURORAL ACTIVITY). Journal of Institute of Science and Technology, 22(1), 34–40. https://doi.org/10.3126/jist.v22i1.17737

Issue

Vol. 22 No. 1 (2017)

Section

Research Articles

License

The views and interpretations in this journal are those of the author(s). They are not attributable to the Institute of Science and Technology, T.U. and do not imply the expression of any opinion concerning the legal status of any country, territory, city, area of its authorities, or concerning the delimitation of its frontiers of boundaries.

The copyright of the articles is held by the Institute of Science and Technology, T.U.