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Comparison of The Strength of EEJ from Geomagnetic Data at Addis Ababa and Mbour for 27th January, 27TH February, 27th March 2013

Ekwubiri, E. C.

Subject area: Science,Engineering and Technology  ·  Area of research: Physics

Abstract

The INTERMAGNET Database was used to evaluate a detailed analysis of ground-based geomagnetic measurements from Addis Ababa (lat. 9.000 N, long. 38.800 E) and Mbour (lat. 14.390 N, long. 16.900 W) in the Africa/Indian Ocean region. Using the available dataset, the study period was chosen so that the data interval used was for the entire day (24 hours) of January 27, February 27, and March 27, 2013. The dataset utilized was for fluctuations in disturbed hours, and the average values of the per-minute data obtained from the INTERMAGNET Station were translated to per-hour readings. Using the average value of all the datasets examined for each geomagnetic component, the strength of the Equatorial Electrojet (EEJ) was calculated. A visualization of the geomagnetic H&X components across time showed how variable the EEJ was per minute. The daily average of the data revealed that the EEJ strength for the Horizontal component of the Earth’s Magnetic field (H-component) at Addis Ababa Station on January 27, February 27, and March 27, 2013, was 36177.11nT, 36247.43nT, and 36201.30nT, respectively while the EEJ strength for X-component at Mbour station on January 27, February 27, and March 27, 2013, was 32121.04nT, 32160.54nT, and 32161.63nT. The results obtained for Addis Ababa and Mbour show the equatorial Electrojet (EEJ) strength is supplementary at Addis Ababa than at Mbour on the same days.

Keywords

Equatorial Electrojet, Plasma, Geomagnetic Field, Intermagnet, and Ionosphere

References

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[3] Campbell, W. H., (1989), “The regular geomagnetic‐field variations during quiet solar conditions, in Geomagnetism”. vol. 3, edited by J. A. Jacobs, pp. 385–460, Academic, San Diego, Calif.

[4] Campbell, W. H., (1990), “Differences in geomagnetic Sq field representations due to variations in spherical harmonic analysis techniques”. J. Geophysics. Res., 95(A12), 20,923–20,936.

[5] Ekwubiri E. C., Aiyohuyin O. E., 2026, “Evaluation of the Fourth-degree Polynomial Correlation between Rotational Angular Velocity of Eighty-four Spiral Barred Galaxies with Radius”, Iconic Research and Engineering Journal Volume 9 Issue 9 March 2026 Page 603- 616. DOI: https://doi.org/10.64388/IREV9I9-1714886

[6] Ekwubiri, E.C., and Said R.S., (Ed), 2015; “Estimation of the Strength of EEJ from Solar Quiet Hours”. Lambert Academic Publishing. ISBN 978-3-659-45652-7

[7] Fejer, B, (2010), “Lunar‐dependent equatorial ionospheric electrodynamics effects during sudden stratospheric warming”.

[8] Forbes, J. M. (1981); “The Equatorial Electrojet, Rev. Geophysics”. Space Phys., 19, 469–504.

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[11] Kelly, M. C., (1989), “The Earth’s Ionosphere”, Academic Press, Inc., San Diego.

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How to cite this paper

Ekwubiri, E. C. "Comparison of The Strength of EEJ from Geomagnetic Data at Addis Ababa and Mbour for 27th January, 27TH February, 27th March 2013" Iconic Research And Engineering Journals Volume 9 Issue 9 2026 Page 2589-2597
Ekwubiri, E. C. "Comparison of The Strength of EEJ from Geomagnetic Data at Addis Ababa and Mbour for 27th January, 27TH February, 27th March 2013" Iconic Research And Engineering Journals, vol. 9, no. 9, Mar. 2026
Ekwubiri, E. C. (2026). Comparison of The Strength of EEJ from Geomagnetic Data at Addis Ababa and Mbour for 27th January, 27TH February, 27th March 2013. Iconic Research And Engineering Journals, 9(9).
Ekwubiri, E. C. "Comparison of The Strength of EEJ from Geomagnetic Data at Addis Ababa and Mbour for 27th January, 27TH February, 27th March 2013" Iconic Research And Engineering Journals, vol. 9, no. 9, Mar. 2026.
@article{1715554,
      author = {Ekwubiri, E. C.},
      title = {Comparison of The Strength of EEJ from Geomagnetic Data at Addis Ababa and Mbour for 27th January, 27TH February, 27th March 2013},
      journal = {Iconic Research And Engineering Journals},
      year = {2026},
      volume = {9},
      number = {9},
      pages = {2589-2597},
      issn = {2456-8880},
      url = {https://www.irejournals.com/formatedpaper/1715554.pdf},
      abstract = {The INTERMAGNET Database was used to evaluate a detailed analysis of ground-based geomagnetic measurements from Addis Ababa (lat. 9.000 N, long. 38.800 E) and Mbour (lat. 14.390 N, long. 16.900 W) in the Africa/Indian Ocean region. Using the available dataset, the study period was chosen so that the data interval used was for the entire day (24 hours) of January 27, February 27, and March 27, 2013. The dataset utilized was for fluctuations in disturbed hours, and the average values of the per-minute data obtained from the INTERMAGNET Station were translated to per-hour readings. Using the average value of all the datasets examined for each geomagnetic component, the strength of the Equatorial Electrojet (EEJ) was calculated. A visualization of the geomagnetic H&X components across time showed how variable the EEJ was per minute. The daily average of the data revealed that the EEJ strength for the Horizontal component of the Earth’s Magnetic field (H-component) at Addis Ababa Station on January 27, February 27, and March 27, 2013, was 36177.11nT, 36247.43nT, and 36201.30nT, respectively while the EEJ strength for X-component at Mbour station on January 27, February 27, and March 27, 2013, was 32121.04nT, 32160.54nT, and 32161.63nT. The results obtained for Addis Ababa and Mbour show the equatorial Electrojet (EEJ) strength is supplementary at Addis Ababa than at Mbour on the same days.},
      keywords = {Equatorial Electrojet, Plasma, Geomagnetic Field, Intermagnet, and Ionosphere},
      month = {March},
  }