Data on the characteristics and modelling of precipitation intensity duration and frequency in southern Nigerian cities
Description
The data characterized precipitation of six capital cities in Nigeria (which experience very high rainfall amounts annually), since the regular monitoring and modelling of precipitation characteristics is scarce in these areas. The precipitation data for each city was analyzed statistically, having extracted the maximum data for each year. Rainfall daily maxima for each city and year were obtained. Minimum, mean and median rainfall were also obtained. The number of days in each year and the total annual sum were as well featured. Furthermore, different durations were obtained for the maximum rainfall data after arranging the maximum precipitation in descending order. The Gumbel probability position method was to obtain the frequency of each maximum precipitation in each city. Rainfall Intensity, Duration and Frequency curves and models were thereafter developed from the data as presented. Performances and goodness of fit tests were used to evaluate the developed models. Precipitation duration curves were also developed for each city studied and these are as well included in the dataset. Results of analysis performed from the r-studio translated in tables as well as the r-codes used all included in this repository.