observational data and the descriptive statistics script of the influence of the sea on the coastal aquifer

This dataset contains groundwater level observations from monitoring wells (ONU27, ONU28, F11) and corresponding sea level data used to analyze tidal response in a coastal aquifer system. The dataset includes time series of groundwater levels, tidal levels, and derived parameters used to estimate aquifer hydraulic properties. The data were used in the manuscript submitted to the Journal of Hydrology entitled "Hydrodynamic functioning of coastal aquifers in the ancient volcanic massifs of Grande Comore Island: Application of simple and multi-component tidal wave analysis methods and machine learning techniques".