Empirical Evaluation of Wet -Term of Refractivity in Nigeria

Authors : O. Agunlejika, T.I. Raji

Pages : 63-68

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Publication Date : 2010-06-01

Article Type : Research Paper

Abstract :This paper presents the evaluation of the wet-term of the surface refractivity for twenty three sites in Nigeria carefully selected such that there is wide coverage for the country using ten-year data collected from Nigeria Meteorological Agency. The analysis showed that the southern sites have higher N-wet values compared to the northern sites. 50 % of the time, wet term refractivity is higher than 100 N-units in the southern sites. However, six out of eleven northern sites considered have values less than 50 N-units during the dry season
Keywords : Refractivity, Wet term, N wet, Nigeria, Troposphere, Propagation