
This article by Yédjinnavènan Ahokpossi investigates temporal variations and trends in Benin’s annual rainfall distribution from 1940 to 2015 using data from six meteorological stations and three rain gauges. Various statistical methods, including modified Mann-Kendall and Bayesian change point detection, were employed to analyze trends, abrupt changes, and variability.
Results revealed periods of wet and dry phases and correlations between rainfall and atmospheric indices like the North Atlantic Oscillation and El Niño. The study offers insights into climate variability in Benin and the influence of oceanic and atmospheric factors on rainfall patterns.