Field-satellite matchup dataset for Sentinel-2 chlorophyll-a modelling across heterogeneous inland waterbodies

This dataset contains the field-satellite matchup data used in the study “Evaluation of minimal local recalibration for reducing transfer error in Sentinel-2 chlorophyll a estimation across heterogeneous waterbodies”. It includes waterbody identifiers, sampling and Sentinel-2 acquisition dates, pelagic reference point coordinates, laboratory-measured chlorophyll-a concentrations, auxiliary water-quality variables, extracted Sentinel-2 reflectance values, and calculated spectral indices used in the modelling workflow.