Why are intense geomagnetic storms so important for human life?

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Geomagnetic Storms, Dst Index, Space Weathe, Hazards.

Scientific paper

Increasing knowledge concerning the space environment surrounding the earth has become one of the main focuses of research. This is mainly due to the fact that the adverse conditions in near-earth space cause significant damage to technological systems and, consequently, considerable economic losses. Many types of space weather-related anomalies and failings have been identified in recent years, thus converting adverse space weather into one of the threats facing modern human technology. Therefore important efforts should be made to find technical and operational solutions to space weather problems. In this framework, the need to implement reliable real-time warning tools is evident. Meanwhile, the fewer parameters involved in making predictions, the more valuable the tools will be. The present work develops a warning procedure based on the use of the z component of the interplanetary magnetic field only. The aim of this tool is to warn of the occurrence of intense geomagnetic variations, as measured by the geomagnetic Dst index. A comparison of our results with those criteria available in the relevant literature for the occurrence of intense geomagnetic activity shows a significant improvement in alerting capability.

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