Research Article Open Access
Despite the presence and use of modern aviation equipment and instrumentation, there are still regular
occurrences of air wish ups with very grave consequences. Often this has been attributed not only to equipment failures
but to the inability of the operators to read or understood the role of nature in air navigation. These natural effects are
the cloud cover, rainfall (both the volume and rate) as well as temperature. This paper uses empirical information of
some of these meteorological conditions on radar signal reception to predict weather conditions. The work was carried
out at Akanu Ibiam International Airport situated in Enugu, one of the old regional capitals of Nigeria, Enugu (6.42oN,
7.61oE). This was because of its strategic position and weather variations. It is neither of the heavy rainfall area nor of
the hot dry zone of the country. It also has some hills around it which gave its name, Enugu, meaning on top of a hill.
Using simple model, it was found that as the rainfall rate Ã°ÂÂÂÃ°ÂÂÂ increased the value of the return power Ã°ÂÂÂÃ°ÂÂÂ« is only
significantly noticeable at higher frequencies of 30GHz and above but for lower Ã°ÂÂÂÃ°ÂÂÂ the backscatter echo signal Ã°ÂÂÂÃ°ÂÂÂ« is
negligibly small irrespective of the values of the frequency. The results show that for communication in Enugu, radar
frequency of between 10 and 30 GHz are recommended.
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Author(s): Eke J,Ohaneme C.O.,Onoh G.N.
Meteorological conditions, radar, attenuation, target, echo signal rainfall rate, cloud cover, back scatter., Optical Communication,Electronic Materials,Electric Drivers and Application.