Our results show that both drought and flood episodes (seven and six episodes, respectively) can be captured using the PDCI. Drought remains the most relevant risk to Sahel’s crop productivity. Some recent large-scale floods led to yield loss. However, floods cause smaller risks to agricultural productivity compared to droughts. Floods may even result in enhanced crop yields.
https://onlinelibrary.wiley.com/doi/10.1002/hyp.14978?af=R