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Acta Geophysica

, Volume 62, Issue 4, pp 973–989 | Cite as

Ionospheric response to magnetic activity at low and mid-latitude stations

  • Shola J. AdebiyiEmail author
  • Isaac A. Adimula
  • Olusola A. Oladipo
  • Benjamin W. Joshua
  • Babatunde O. Adebesin
  • Stephen O. Ikubanni
Research Article

Abstract

The F2-layer response to the moderate storm of 5–7 April 2010 was investigated using data from two equatorial stations (Ilorin: lat. 8.5°N, 4.5°E; Kwajalein: lat. 9°N, long. 167.2°E) and mid-latitude (San Vito: lat. 40.6°N, long. 17.8°E; Pruhonice: lat. 50°N, long. 14.6°E). Before storm commencement, enhancement, and depletion of NmF2 values were observed in the equatorial and mid-latitude stations, respectively, indicating the latitudinal dependence of the pre-storm event. All the stations with the exception of Kwajalein show positive phase in NmF2 response at the storm onset stage. Positive phase in NmF2 continues over Ilorin and appears on the daytime ionosphere of Kwajalein on 6 April, whereas negative phase suppressed the positive feature in Pruhonice and San Vito until the recovery condition. The differences in the response of F2-layer to the storm for the two equatorial stations were attributed to their longitudinal differences. On the average, both the AE and D st indices revealed poor correlation relationship. More studies are required to ascertain this finding.

Key words

moderate storm equatorial station ionosphere electric field positive phase mid-latitude 

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Copyright information

© Versita Warsaw and Springer-Verlag Wien 2014

Authors and Affiliations

  • Shola J. Adebiyi
    • 1
    Email author
  • Isaac A. Adimula
    • 2
  • Olusola A. Oladipo
    • 2
  • Benjamin W. Joshua
    • 3
  • Babatunde O. Adebesin
    • 1
  • Stephen O. Ikubanni
    • 1
  1. 1.Department of Industrial PhysicsLandmark UniversityOmu-Aran, Kwara StateNigeria
  2. 2.Department of PhysicsUniversity of IlorinIlorinNigeria
  3. 3.Department of PhysicsKebbi State University of Science and TechnologyAliero, Kebbi StateNigeria

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