Spatio-Temporal Variability of Rainfall Distribution in the Western Region of Ghana

C. B. Boye；I. Yakubu；D. S. Pokperlaar

Rainfall Distribution Pattern ； Western Region of Ghana

Research Journal of Environmental and Earth Sciences

3卷4期（2011 / 06 / 05）

393 - 399

英文

The Western region of Ghana experiences the highest rainfall. The predominant activity in this region includes agriculture and mining. Due to the good climatic conditions coupled with the concentration of mining companies in the area, people from the various parts of the country migrate to this region. The study was carried out to determine the rainfall distribution pattern over a thirty year period from 1975 to 2005 in the western region of Ghana. Ilwis, ArcGIS and Microsoft excel software were used for the data interpolation and trend of the rainfall pattern. The data used for this included monthly and annual rainfall data for selected districts within the region and topographic map. The results revealed that there is a general rise in recorded rainfall quantities from 1975 through 1985, 1995 to 2005 in all the selected meteorological stations within the study area, except Tarkwa which showed an erratic trend. There are other isolated reductions in rainfall pattern over the period. The rated environmental degradation should to check to improve on the situation within the region.