Analysis of Annual Rainfall and Annual Number of Rainy Days in the Research for Indices of Climate Change in the Zambezian Phytogeographic Region
N’Landu Dikumbwa1,*, Scott Tshibang Nawej2, Gabriel Mutundo Teteka2, Benjamin Mayaka Kibwila3, Jules Aloni Komanda3
Revue Internationale de Géomatique, Vol.35, pp. 13-30, 2026, DOI:10.32604/rig.2026.068019
- 05 February 2026
Abstract Rainfall data from four weather stations, quite far from each other, but located in the Zambezian phytogeographic region, were analysed for the research for indices of climate change. Two variables, rainfall and the annual number of rainy days, were considered. The rainfall data examined are 114 years for Luanda (1901–2014), 106 years for Lubumbashi (1916–2021), respectively, 54 and 41 years for Huambo (1961–2014) and Boma (1981–2021); 100 years (1921–2021) for the annual number of rainy days for only the Lubumbashi weather station. The results were a widespread decline in rainfall at all weather stations. Despite… More >