The Impact of Harmattan Particles on Microwave Propagation in the Savannah Region

  IJCTT-book-cover
 
International Journal of Computer Trends and Technology (IJCTT)          
 
© 2015 by IJCTT Journal
Volume-29 Number-1
Year of Publication : 2015
Authors : D. D. Dajab, Naldongar Parfait, E.A. Adedokun
  10.14445/22312803/IJCTT-V29P108

MLA

D. D. Dajab, Naldongar Parfait, E.A. Adedokun "The Impact of Harmattan Particles on Microwave Propagation in the Savannah Region". International Journal of Computer Trends and Technology (IJCTT) V29(1):40-45, October 2015. ISSN:2231-2803. www.ijcttjournal.org. Published by Seventh Sense Research Group.

Abstract -
Harmattan intensity may be so great that visibility at ground level is reduced to less than a hundred meters by the dust clusters. The precipitations like snow, rain absorb and scatter electromagnetic energy leading to cancellation in its signal strength. In this paper, the records of ground level visibility during harmattan will be analyzed with respect to the approximated particle rate (or density) of harmattan. The specific particle attenuation possible on radio frequency signals during harmattan was analyzed, computed and plotted results obtained. The attenuation variations obtained indicates a significant loss in power during harmattan periods.

References
1. .Naldongar Parfait, An assessment of the Impact of Harmattan Particles on Microwave Propagation in the Savannah Region, M.Sc thesis, Electrical Engineering Department, Ahmadu Bello University, Zaria.2007, (unpublished).
2. D.D. Dajab, perspectives on the effects of Harmattan on Radio Frequency Waves, Journal of Applied sciences Research, INSInet publication November 2006, (pages 1014-1017).
3. Neyman, A.B “Study of short wave reception in Zaria “PhD dissertation, Electrical Engr Dept. A.B.U, 1981(pages 1-2; 62-63).
4. Records, (2004, 2005, 2006); Meteorological Department International Airport of N’djamena ASECNA (Chad)
5. D.D Dajab, Characterisation and Modelling of 900MHz Indoor Wireless communication channels in the savannah region, PhD. Dissertation, Electrical Eng. Dept. Ahmadu Bello University, Zaria 2005, (pages 45-52; 144-152)
6. M. Ezekiel method of correlation analysis, 2nd edition, New York, John Wiley, 1941, Chap 12.

Keywords
harmattan, specific particle attenuation and radio frequency.