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Periodical article Periodical article Leiden University catalogue Leiden University catalogue WorldCat catalogue WorldCat
Title:Rainfall reliability over Ghana
Author:Ofori-Sarpong, E.
Year:1991
Periodical:Journal of Eastern African Research and Development (ISSN 0251-0405)
Volume:21
Pages:93-106
Language:English
Notes:biblio. refs., ills.
Geographic terms:Ghana
West Africa
Subjects:rain
Environment, Ecology
Abstract:Rainfall reliability and variability are of great importance in agriculture. Reliability studies determine the agricultural potential and provide an estimate of long-term crop risks. They are also of great significance in drought studies. Ghana is basically agricultural and agriculture accounts for about 65 percent of the foreign exchange earnings. It is against this background that this paper examines rainfall reliability in the country. A test using the annual rainfall in Ghana for a thirty-year period (1931-1960) shows with 90 percent certainty that annual rainfall in Ghana has a normal distribution. The southeast coastal region has the highest coefficient of variation and the least reliability of rainfall, and is thus the most drought-prone area in the country. For agriculture to be more viable, irrigation is of paramount importance in this region. Bibliogr., sum.
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