Statistics of vertical refractivity gradient over Akure, Nigeria

Abstract

Vertical radio refractivity gradient is an important factor for the design and planning of microwave communication links. In this work, radio refractivity and distribution of vertical radio refractivity gradient at different times of the day over a tropical station was studied using the ECMWF dataset. Results obtained showed that the refractivity values were higher during the wet season but lower in the dry season. The various probability of occurrence of subrefraction, super-refraction and ducting were reported in the region.