November 2004 space weather events: Real-time observations and forecasts

Trichtchenko, L.; Zhukov, A.; van der Linden, R.; Stankov, S.M.; Jakowski, N.; StanisJawska, I.; Juchnikowski, G.; Wilkinson, P.; Patterson, G.; Thomson, A. W. P.. 2007 November 2004 space weather events: Real-time observations and forecasts. Space Weather, 5, S06001.

Before downloading, please read NORA policies.

Download (4MB)


Space weather events with their solar origin and their distribution through the heliosphere affect the whole magnetosphere-ionosphere-Earth system. Their real-time monitoring and forecasting are important for science and technology. Here we discuss one of the largest space weather events of Solar Cycle 23, in November 2004, which was also one of the most difficult periods to forecast. Nine halo coronal mass ejections (CMEs), interacting on their way through the interplanetary medium and forming two geoeffective interplanetary structures, exemplify the complexity of the event. Real-time and quasi-real-time observations of the ground geomagnetic field show rapid and extensive expansion of the auroral oval to 55 in geomagnetic latitude accompanied by great variability of the ionosphere. Geomagnetically induced currents (GICs) seen in ground networks, such as power grids and pipelines, were significant during the event, although no problems were reported. Forecasts of the CME propagation, global and local ground geomagnetic activity, and ionospheric parameters, issued by several regional warning centers, revealed certain deficiencies in predictions of the interplanetary characteristics of the CME, size of the geomagnetic disturbances, and complexity of the ionospheric variations produced by this event. This paper is a collective report based on the materials presented at the splinter session on November 2004 events during the first European Space Weather Week.

Item Type: Publication - Article
Digital Object Identifier (DOI):
Programmes: BGS Programmes > Seismology and Geomagnetism
NORA Subject Terms: Space Sciences
Date made live: 12 Nov 2007 15:30 +0 (UTC)

Actions (login required)

View Item View Item

Document Downloads

Downloads for past 30 days

Downloads per month over past year

More statistics for this item...