Impacts of Climate Change on Hydrological Regimes in the Congo River Basin

In light of the significance of the study area and its vulnerabilities to hydrological variations, it is crucial to have a current understanding of food and drought patterns in the present and in the future. [...] The PBIAS is another measure of model accuracy that is calculated by comparing the mean of the observed values to the mean of the simulated values and expressing the difference as a percentage of the observed mean. [...] The parameter with the most influence on the performance of the model is the deep aquifer percolation fraction (RCHRG_DP) with a t-stat and p-value of −0.09 and 0.92, respectively, whereas the least sensitive parameter is the average slope steepness (HRU_SLP) with a t-stat and a p-value of 0 and 0.99, respectively. [...] The hiighestt discharge value can be observed at the outlet,, while the southern part of the basin is the largest section in the basin with the least amount of discharge. [...] To summarize, the projections suggest four key highlights: first, the rise in tempera- tures can lead to high incidents of drought regimes in the basin and an overall decrease in discharge in the center and southwestern parts of the basin; second, the high-intensity rainfalls and increase in annual precipitation may lead to increased discharge, especially in the northern and northwestern extremiti.