Unusually high geomagnetic activity in 2003

Abstract

In 2003, geomagnetic activity was found to be considerably higher than in any other year of the current solar cycle. This was caused by the time coincidence of large low-latitude coronal holes and a significant burst of the flare and eruptive activity of the Sun. The features of recent intensification of the activity are discussed, and the long-period behavior of indices of the geomagnetic activity in the 23rd and previous cycles is compared. The large magnetic storms in October-November 2003 are analyzed in more detail.

Orbit-centered atmospheric density prediction using artificial neural networks

“…Out of the years that CHAMP was collecting data, years 2003 and 2007 were certainly very interesting from the point of view of space weather and therefore were selected for testing. During 2003 (Dst =-22, ap=21.8 and F 10.7 =128) the geomagnetic activity was the highest of that solar cycle [49]. In contrast, during 2007 (Dst =-8, ap=7.5 and F 10.7 =73) the solar cycle went through a period of very low activity (solar minimum, see ref [50]) and therefore the solar and geomagnetic activities were very low.…”