Solar flares, magnetic clouds, and geomagnetic storms
Abstract
Firstly, semi-empirical distributions of solar wind proton number density and velocity ordered around the Heliospherical Current Sheet (HCS) of the inner heliosphere are considered. Then, the velocity profiles of flare-generated Coronal Mass Ejections (CMEs) running through the inhomogeneous heliosphere are calculated. They show that the velocities strongly depend on flare positions with respect to the HCS. Finally, a specific mutual flare-HCS-Earth location leading to a strong geomagnetic storm is deduced from calculations and supported by a few real events of solar-terrestrial physics.
- Publication:
-
Solar Physics
- Pub Date:
- February 1993
- DOI:
- 10.1007/BF00646493
- Bibcode:
- 1993SoPh..143..365I
- Keywords:
-
- Earth Ionosphere;
- Environment Effects;
- Experiment Design;
- Ionospheric Disturbances;
- Spaceborne Experiments;
- Environmental Monitoring;
- Mathematical Models;
- Rocket Launching;
- Short Wave Radio Transmission;
- Geophysics;
- Flare;
- Solar Wind;
- Velocity Profile;
- Current Sheet;
- Coronal Mass Ejection