Authors: Agbo Udoka Jonas Ugbor Desmond Okechukwu
Publish Date: 2013/02/19
Volume: 120, Issue: 1-2, Pages: 83-86
Abstract
The work discusses the effect in the variations of secondary radioclimatic parameters in Nsukka Nigeria The data collected from the measured atmospheric profile using two automatic wireless weather stations for 3 years were used to estimate the propagation condition geoclimatic factor and effective earth radius The result shows that the calculated median value of kfactor is 1595 with an absolute span of 026 of the standard value of kfactor 1333 owing to the increase in relative humidity during the rainy seasons and intensive temperature inversion in the morning and early afternoon periods of December due to the dry harmattan for the season Also from the result superrefraction propagation condition was observed for about 7 months of a year while ducting condition dominates the remaining 5 months in the region The regression analysis of kfactor as a function of ground refractivity showed that the pair is strongly correlated 09996 These results have not been obtained in the region and it will help in planning of radio wave lineofsight for better signal receptionThe authors are grateful to the Centre for Basic Space Science University of Nigeria Nsukka Nigeria for donating two sets of the Vantage Pro2 weather station and research collaborations and the Nigeria Telecommunication NITEL for the use of its facilities
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