*3.1. Historical Time Series Data*

Historical rainfall data used in this work cover the entire study area at the yearly scale. Climate data over the period 1953–2015 was provided by the National Meteorology Directorate (DMN) of the Society of Development and Exploitation, Aeoroportuary, Aeronautic and Meteorology (SODEXAM) of Côte d'Ivoire. These data consist of daily rainfall readings from ten rainfall stations (Table 1) selected to provide the most homogeneous coverage of the different climatic areas across in the Sassandra basin. The study variable is the annual rainfall for the period 1953–2015.


**Table 1.** Rainfall stations selected for the study.
