Search Results - "Adeniyi, J O"

On the Pre‐Magnetic Storm Signatures in NmF2 in Some Equatorial, Low‐ and Mid‐Latitude Stations by Joshua, B. W., Adeniyi, J. O., Amory‐Mazaudier, C., Adebiyi, S. J.

“…In this paper, the ionospheric quiet‐time disturbances otherwise known as Pre‐Magnetic Storm Signatures (PMS) have been studied using the F2‐layer peak…”
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Excursions of Interhemispheric Field‐Aligned Currents in Africa by Owolabi, O. P., Bolaji, O. S., Adeniyi, J. O., Oyeyemi, E. O., Rabiu, A. B., Habarulema, J. B.

“…The interhemispheric field‐aligned currents (IHFACs) are the most evident currents connecting the solar quiet (Sq) current systems in the Northern and Southern…”
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Variability of total electron content over an equatorial West African station during low solar activity by Bolaji, O. S., Adeniyi, J. O., Radicella, S. M., Doherty, P. H.

“…Slant total electron content (STEC) data measured by the Global Positioning System receiver at Ilorin, Nigeria, with geographical coordinates 8.47°N, 4.68°E…”
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Nighttime morphology of vertical plasma drifts at Ouagadougou during different seasons and phases of sunspot cycles 20-22 by Adebesin, B. O., Rabiu, A. B., Adeniyi, J. O., Amory-Mazaudier, C.

“…The nighttime morphology of vertical plasma drift (Vd) inferred from ground‐based measurements of the F layer height at Ouagadougou (12.4°N, 358.6°E) in the…”
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Signature of the 29 March 2006 eclipse on the ionosphere over an equatorial station by Adeniyi, J. O., Radicella, S. M., Adimula, I. A., Willoughby, A. A., Oladipo, O. A., Olawepo, O.

“…This study documents some results of the effect of the 29 March 2006 eclipse on the ionosphere over Ilorin, Nigeria (longitude 4.57°E, latitude 8.53°N, dip…”
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Magnetic storm effects on the variation of TEC over Ilorin an equatorial station by Adeniyi, J. O., Doherty, P. H., Oladipo, O. A., Bolaji, O.

“…We have used total electron content (TEC) derived from dual‐frequency GPS receivers to study magnetically quiet and storm time variations of the ionosphere at…”
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Variability of Horizontal Magnetic Field Intensity Over Nigeria During Low Solar Activity by Bolaji, O. S., Adimula, I. A., Adeniyi, J. O., Yumoto, K.

“…Magnetic field intensity of the horizontal component (H) data measured from Magnetic Data Acquisition System (MAGDAS) at Ilorin (geographic latitude: 8.47°N,…”
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Analysis on 29 March 2006 eclipse effect on the ionosphere over Ilorin, Nigeria by Adeniyi, J. O., Oladipo, O. A., Radicella, S. M., Adimula, I. A., Olawepo, A. O.

“…Ionospheric measurements obtained during the 29 March 2006 eclipse period over Ilorin, Nigeria (longitude 4.57°E, latitude 8.53°N, dip 4.1°S), an equatorial…”
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Modelling M(3000)F2 at an African Equatorial Location for Better IRI‐Model Prediction by Adebesin, B. O., Adeniyi, J. O., Afolabi, P. A., Ikubanni, S. O., Adebiyi, S. J.

“…The F2‐layer propagation factor M(3000)F2 is important to ionospheric studies owning to its use in high High frequency radio communication/ionospheric…”
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Preliminary Results from the Magnetic Field Measurements Using MAGDAS at Ilorin, Nigeria by Rabiu, A. B., Adimula, I. A., Yumoto, K., Adeniyi, J. O., Maeda, G.

“…MAGDAS, the Magnetic Data Acquisition System, was successfully installed at the University of Ilorin, Nigeria—an equatorial station—in August 2006. MAGDAS is…”
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Equatorial F2-peak parameters in the IRI model by Adeniyi, J.O., Bilitza, D., Radicella, S.M., Willoughby, A.A.

“…We have used measurements of an ionosonde station near the magnetic equator in Ouagadougou, Burkina Faso to evaluate the ability of the International Reference…”
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Variability of the ionospheric electron density at fixed heights and validation of IRI-2007 profile’s prediction at Ilorin by Oladipo, O.A., Adeniyi, J.O., Radicella, S.M., Adimula, I.A.

“…A study on the variability of the equatorial ionospheric electron density was carried out at fixed heights below the F2 peak using one month data for each of…”
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Comparative Investigation of the Digisonde‐Derived Electron Density and IRI Profiles at a Station Near the African Magnetic Equator During LowSolar Activity by Adebiyi, S. J., Adeniyi, J. O., Adebesin, B. O., Ikubanni, S. O., Adimula, I. A., Oladipo, O. A., Olawepo, A. O., Adekoya, B. J., Joshua, B. W.

“…Information about the altitudinal distribution of ionospheric electron density (Ne) in the African equatorial region is very scanty. Such information is vital…”
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Variability of foF2 for an equatorial station and comparison with the foF2 maps in IRI model by Adeniyi, J.O., Oladipo, O.A., Radicella, S.M.

“…In this study, foF2 data obtained from an equatorial station in West Africa were subjected to an occurrence probability distribution test. This was done on an…”
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Quantitative Characteristics of Equatorial Ionization Gradient Above 150 km at Low Solar Activity by Adebesin, B. O., Adeniyi, J. O., Oladipo, O. A., Olawepo, A. O., Adimula, I. A.

“…The electron ionization gradient (dN/dh) characteristics were quantitatively presented using data from Ilorin (8.50°N, 4.68°E) Digisonde during low solar…”
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Variation of Digisonde‐Derived Scale Height During Quiet and Disturbed Geomagnetic Conditions Over an African Equatorial Station by Adebiyi, S. J., Adeniyi, J. O., Reinisch, B. W., Adebesin, B. O., Ikubanni, S. O., Adimula, I. A., Oladipo, O. A., Olawepo, A. O., Joshua, B. W., Adekoya, B. J.

“…One inherent parameter in the extrapolation of ionospheric topside profile is the scale height, which can be derived from an ionogram. For the first time in…”
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Geomagnetic Storms Impact on Post-sunset Equatorial Ionosphere at Ilorin During 2010 by Olawepo, A. O., Oladipo, O. A., Sodiq, S., Odeyemi, O., Joshua, B. W., Adebiyi, S. J., Adeniyi, J. O., Adimula, I. A.

“…Night-time equatorial ionosphere has been known to be characterised by irregularities which manifest as spread F in ionograms and as L-band scintillations in…”
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Equatorial F2-layer peak height and correlation with vertical ion drift and M(3000)F2 by Obrou, O.K., Bilitza, D., Adeniyi, J.O., Radicella, S.M.

“…Ionosonde data recorded at Korhogo, Côte-d'Ivoire (Latitude +9.3; Longitude −5.4, Dip −0.67) during a year of low solar activity (1995) were used to…”
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Pattern of Ionization Gradient, Solar Quiet Magnetic Element, and F2‐Layer Bottomside Thickness Parameter at African Equatorial Location by Adebesin, B. O., Adeniyi, J. O., Adimula, I. A., Adebiyi, S. J., Ikubanni, S. O., Oladipo, O. A., Olawepo, A. O.

“…The study of ionization gradient (dN/dh) profile in the description of ionospheric dynamics is not common. This is the first attempt at finding the dependence…”
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Variability of equatorial ionospheric electron density at fixed heights below the F2 peak by Oladipo, O.A., Adeniyi, J.O., Radicella, S.M., Obrou, O.K.

“…A study on variability of the equatorial ionosphere was carried out at fixed heights below the F2 peak for two different levels of solar activity. The study…”
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