Developing Rainfall Models For Enugu City


Suitable rainfall models of Enugu City is presented based on the statistical method of least squares. A total of 23 rainfall models are developed in all and grouped into 2 sets. The first set contains 4 rainfall models which represents an inverse relationship between rainfall intensities and durations for specified return periods of 1.1, 2.2, 5.5 and 11 years. High and positive values of coefficients of correlations of 0.9735 to 0.9885 were obtained; an indication of good curve fitting. The second set of rainfall models relates rainfall intensities to return period for specified durations of 15, 30, 45, 60, 90, 120 and 180 minutes. Seven models are generated in this set with coefficients of correlations between 0.886 – 0.9466. Partial series analysis were made with view of comparing the resulting models with those developed using the annual series. Though, rainfall models of the partial series exhibited good correlation, their prediction differed significantly with the corresponding models of original data sets and thus not adequate for field application. The two sets of models obtained from research (excluding the partial series models) served useful purpose for predicting rainfall events and in turn flood prediction and erosion control works.

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NWADIKE, E (2021). Developing Rainfall Models For Enugu City. Afribary. Retrieved from

MLA 8th

NWADIKE, ETHELBERTH "Developing Rainfall Models For Enugu City" Afribary. Afribary, 26 May. 2021, Accessed 13 Jun. 2024.


NWADIKE, ETHELBERTH . "Developing Rainfall Models For Enugu City". Afribary, Afribary, 26 May. 2021. Web. 13 Jun. 2024. < >.


NWADIKE, ETHELBERTH . "Developing Rainfall Models For Enugu City" Afribary (2021). Accessed June 13, 2024.