Speaker
Description
Solar flare effects (Sfe) are rapid variations in the Earth’s magnetic field. They are the response to an enhancement of the amount of radiation during Solar flare events.
The Carrington’s observations in 1859 related geomagnetic variations with solar radiations. They represented the first direct evidence of the connection between the Sun’s activity and the Earth’s environment. Since then, much progress has been made in the understanding Sun-Earth system. The interest for the effects of large flare events has increased with their capability to put technological systems in danger.
In this presentation, I will review the state-of-the-art of the Sfe, and the development and advances made in the knowledge concerning Sfe phenomena. First, I will offer a historical approach with a comprehensive description of which are the main characteristics of Sfe. This also includes specific topics like the puzzling reversed-Sfe or the night-time Sfe. I will stress the role played by the Service of Rapid Magnetic variations (SRMV) in Sfe knowledge and popularization. This will be followed by a discussion of the main current limiting factors in the process of detection and the proposed ways to overcome challenges such as creating an automatic detection method. I will clarify some aspects related to the geo-effectiveness of the solar flares producing magnetic disturbances. Also, I will provide an overview of the temporal evolution of the electric currents producing Sfe. The importance of key subjects such as the dynamic aspects of Sfe will be developed later. Finally, estimations of the size of large flares using historical ionospheric and magnetic data will be reviewed.