28 March 2025

Geomagnetic Activity

Geomagnetic activity refers to disturbances in the Earth’s magnetic field caused by solar wind and cosmic rays interacting with the Earth’s magnetosphere. It is often measured using indices such as the Kp index, which quantifies the level of geomagnetic storms and fluctuations. High geomagnetic activity can lead to phenomena such as auroras (Northern and Southern Lights), disruptions in satellite and communication systems, and impacts on power grids. The activity is primarily influenced by solar conditions, including solar flares and coronal mass ejections, which can inject charged particles into the Earth’s vicinity. Monitoring geomagnetic activity is essential for understanding space weather and its effects on technology and the environment.