Variations of geomagnetic H, D, and Z field intensities on quiet days at west african latitudes

Obiekezie T.; Okeke F.

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2023-07-10 22:44

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OBIEKEZIE, T., OKEKE, F.. Variations of geomagnetic H, D, and Z field intensities on quiet days at west african latitudes. In: Moldavian Journal of the Physical Sciences, 2009, nr. 3-4(8), pp. 366-372. ISSN 1810-648X.

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Moldavian Journal of the Physical Sciences

Numărul 3-4(8) / 2009 / ISSN 1810-648X /ISSNe 2537-6365

Variations of geomagnetic H, D, and Z field intensities on quiet days at west african latitudes

Pag. 366-372

Obiekezie T.¹, Okeke F.²

¹ Department of Physics and Industrial Physics, Nnamdi Azikiwe University,
² Department of Physics and Astronomy University of Nigeria Nsukka

Disponibil în IBN: 19 noiembrie 2013

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In the framework of the French participation to the International Equatorial Electrojet Year (IEEY), a network of ten electro-magnetic stations was installed at African latitudes. These stations measured digitally the three components of the magnetic field and the two components of the telluric electric field, and operated over a period of 20 months. The magnetic data are used to study the variations of geomagnetic H, D, and Z field intensities on quiet days. Night-time variations in all the three geomagnetic elements were observed, which suggests there is a night-time current in the West African dip equatorial latitudes. The pattern of variations observed in H element, which peaks around noon, is seen to be due to the equatorial electrojet current. A reverse current called the counter electrojet current was noticed on some days.

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