Intense Geomagnetic Storms and their possible effects on society:
Modern society is becoming ever increasingly dependent on space technology for daily routine functions, such as communication, navigation, data transmission, global surveillance of resource surveys, atmospheric weather, etc. Space weather can influence the performance and reliability of space-borne and ground based technological systems and can endanger human life and health. Intense and super intense geomagnetic storms create hostile space weather conditions that can generate many hazards to the spacecrafts as well as technological systems at ground. Geomagnetic storms can cause life-threatening power outages such as Hydro Quebec power failure during March 1989 magnetic storm. Strong geomagnetically induced currents (GICs) produced by short period variations in the geomagnetic field during intense magnetic storms can cause damage to power transmission lines and corrode long pipelines. Maitri station data clearly shows the correlation between the substorm activity and the southward component of the IMF. Adverse space weather conditions created by intense and super intense magnetic storms could affect communication, navigation and proper functioning as well as the life span of technological systems in space.