Title :
On ionospheric pre-storm phenomena
Author :
Chukwuma, Victor U.
Author_Institution :
Dept. of Phys., Olabisi Onabanjo Univ., Ago-Iwoye, Nigeria
Abstract :
A study of the ionospheric pre-storm phenomena is presented using global ionosonde and geophysical data obtained during November 20-21, 2003. The results show that pre-storm phenomena don´t originate from local time effect. Also a probable role by the magnetospheric electric fields as the main drivers of pre-storm phenomena could not be confirmed by the analysis of hmF2 from the ionosonde stations. Furthermore, investigation of solar flare effects on the pre-storm phenomena didn´t reveal them as the main drivers. The present results appear to suggest that pre-storm ionospheric phenomena exist but remain an unresolved problem.
Keywords :
ionosphere; magnetic storms; magnetosphere; solar flares; AD 2003 11 20 to 21; global ionosonde data; hmF2; ionospheric prestorm phenomena; local time effect; magnetospheric electric field; solar flare effect; Electric fields; Generators; Ionosphere; Magnetic noise; Magnetic shielding; Magnetosphere; Storms;
Conference_Titel :
General Assembly and Scientific Symposium, 2011 XXXth URSI
Conference_Location :
Istanbul
Print_ISBN :
978-1-4244-5117-3
DOI :
10.1109/URSIGASS.2011.6050976
