Analysis of Geomagnetic Storms and Solar Indices

Enhanced solar activities are believed to cause substantial space weather effects in the Earth’s environment. Space weather can cause havoc on the technological systems the residents of the Earth heavily rely on. Space weather effects are mainly prevalent when the shielding Earth’s magnetic field lets in energy and particles from the Sun. The Disturbance storm time (Dst) index can provide a quantitative measure for space weather effects. In this study, we compared data from the Dst index, the number of sunspots, and the frequency of Coronal Mass Ejections to investigate relationships between solar activity and signatures of space weather. The time-frequency (wavelet) analysis technique has been employed on five solar cycles worth of Dst and sunspot number data and all of the data of Coronal Mass Ejections. The presentation discusses the result of our analysis.