Data on spatial distribution of tracers for optical sensing of stream surface flow

Here, we present the numerical and field data used in the manuscript entitled Spatial distribution of tracers for optical sensing of stream surface flow. Numerical data were synthetically generated considering different values of seeding density and aggregation levels of tracers for image-velocimetry analyses. In total, 33,600 synthetic images were generated. Field data correspond with the Basento River case study located in southern Italy. The respective footage at 12 fps, pre-processed and stabilised frames, and reference velocity data are provided in this dataset.