The Disturbances of the Solar-Geomagnetic Activity

Abstract

Storm of October 2003 and November 2004 belongs to the second maximum in the 23rd solar sunspot's cycle. Spectacular solar-geophysical processes were registered in the geospace from 21 to 31 October 2003. During 03-10, November 2004, the largest flare were accompanied by halo CMEs emission and the super active sunspot groups dominated in the solar activity. During those days, in the magnetic field of Sun, super active group of sunspots appeared with solar flares. This explosion of energy from the Sun's magnetic field induced very intense disturbances in the Earth electromagnetic field. Therefore, October 2003 and November 2004 are registered as the magnetic storms of class A. In this paper, some specific characteristics of this exceptionally intense solargeomagnetic activity are shown. Whilst the elevated X-ray component from a solar flare or coronal mass ejection (CME) can be significant , the effects of large particle events to the secondary radiation environment at jet aircraft cruising altitudes, can have consequences for both people and micro electronics used in modern generation aircraft. It has been shown that dose rates increase with higher latitudes and altitudes, and due to the geomagnetic field that deflect incoming solar and galactic cosmic ray, we get greater shielding closer to the equator.