Diurnal Variation of Surface Radio Refractivity Over Three Meteorological Stations in Nigeria

Authors

  • Gabriel Adisa Adegboyega Bells University of Technology, Ota
  • Temitope Sadiq Bells University of Technology, Ota

DOI:

https://doi.org/10.22385/jctecs.v6i0.104

Keywords:

Refractivity, Refractive Index, radio wave propagation

Abstract

Analysis and study of the vertical variation of refractivity in the troposphere is required for radio systems planning in order to achieve successful operation. The diurnal variation of surface radio refractivity over three meteorological stations in Nigeria is presented. The stations include Lagos-Ikeja (6⁰35’N, 3⁰40’E), Akure (7⁰15’09”N, 5⁰11’35”E) and Minna (9⁰37’N, 6⁰32’E). Monthly mean values of temperature, pressure and relative humidity were used to compute refractivity for three stations. The surface refractivity also shows latitudinal and seasonal variation. The maximum refractivity values were obtained for Ikeja (Lagos) of 394 N-units, Akure of 404 N-units and Minna of 364 N-units.

Downloads

Download data is not yet available.

Author Biography

  • Gabriel Adisa Adegboyega, Bells University of Technology, Ota

    Dr. G.A Adegboyega,

    Senior Lecturer

    Department of Electrical/Electronics & Computer Engineering,

    Bells University of Technology

     

References

Ajayi G.O. (1989), Physics of the Troposphere Radio Propagation; A Proceeding of the ICTP College on Theoretical and Experimental Radio Propagation Physics, Trieste, Italy, pp. 6-24.

Bean, B.R. and Dutton, E.J. (1968), Radio Meteorology, 1-20, Dover Edition, New York, USA.

Bean, B.R. and Dutton, E.J. (1966), Radio Meteorology, US Department of Commerce, National Bureau of Standards Monograph 92.

Hall, M.P.M. (1979) Effects of the Troposphere on Radio Communications, 14-46, IEEE Peter Pergrinus Ltd. London and New York.

ITU-R (2003) The Radio Refractive Index. Its Formula and Refractivity Data, pp. 453-459.

Lane, J.A. and Bean, B.R. (1963) A radio Meteorological Study, Part 1. Existing Radio Meteorological Parameters; Part II; An Analysis of VHF Field Strength Variations and Refractive Index Profiles; Part III. A New Turbulence Paramenter J.Res. Natl. Bur. Std, Vol 67, pp. 589-604.

Downloads

Published

2016-06-27

Issue

Vol. 6

Section

Articles

License

The journal is currently an open access journal.

The articles receive both rigorous peer-review and expedited online publication.

The journal encourages young researchers to submit their unpublished papers.

The authors retain their article’s copyright.

The authors retain publishing rights without restrictions.

Thus, authors may use their own articles for the following non-commercial purposes without asking our permission (and subject only to acknowledging first publication in Journal of Communications Technology, Electronics and Computer Science and giving a full reference or web link, as appropriate).

Authors cannot submit a manuscript for publication to other journals simultaneously. It is a waste of valuable resources because editors and referees spent a great deal of time processing submitted manuscripts. It is also unethical to republish similar research articles (text/figures/tables) again because journals have limited page space and it most likely violates copyrights which have already been transferred to the first journal. Therefore, all journals require a signed author's copyright transfer agreement stating the originality of the research work submitted through a manuscript. As stated above that authors should submit original, new and unpublished research work to the journal. The ethical issues such as plagiarism, fraudulent and duplicate publication, violation of copyrights, authorship and conflict of interest are serious issues concerning ethical integrity when submitting a manuscript to a journal for publication.

The contents of papers are the sole responsibility of the authors, and publication shall not imply the concurrence of the Editors or Publisher.