|
|
 |
|
|
Ann. Geophys., 23, 3027-3034, 2005
www.ann-geophys.net/23/3027/2005/
© European Geosciences Union 2005
November 2003 event: effects on the Earth's ionosphere observed from ground-based ionosonde and GPS data
E. Blanch1, D. Altadill1, J. Boška2, D. Burešová2, and M. Hernández-Pajares3
1Observatori de l’Ebre, URL – CSIC, Roquetes, Spain
2Institute of Atmospheric Physics, Academy of Sciences CR, Prague, Czech Republic
3Technical University of Catalonia, UPC/gAGE, Barcelona, Spain
Abstract. Intense late-cycle solar activity during October and November 2003 produced
two strong geomagnetic storms: 28 October-5 November 2003 (October) and
19-23 November 2003 (November); both reached intense geomagnetic activity
levels, Kp=9, and Kp=8+, respectively. The October 2003
geomagnetic storm was stronger, but the effects on the Earth's ionosphere in
the mid-latitude European sector were more important during the November 2003
storm. The aim of this paper is to discuss two significant effects observed
on the ionosphere over the mid-latitude European sector produced by the
November 2003 geomagnetic storm, using data from ground ionosonde at Chilton
(51.5° N; 359.4° E), Pruhonice (50.0° N;
14.6° E) and El Arenosillo (37.1° N; 353.3° E),
jointly with GPS data. These effects are the presence of well developed
anomalous storm Es layers observed at latitudes as low as 37° N
and the presence of two thin belts: one having enhanced electron content and
other, depressed electron content. Both reside over the mid-latitude European
evening sector.
Full Article in PDF (3538 KB) |
|
|
