Evaluation of geomagnetic storms — A case study

This paper studies the impact of the geomagnetic storm on the ionosphere. The investigation has been done with the help of the Vertical Total Electron Content (VTEC) data. It presents three case studies on geomagnetic storms which occurred on March 17th, 2015, March 6th, 2016 and May 8th, 2016. The effects of the storms have been explained by using the interplanetary magnetic field (IMF Bz) and the geomagnetic parameters. The analyses done in this paper are very significant for the applications of satellite-based navigational and communication system for which ionosphere poses severe challenges when geomagnetic activity is high.