UAV and Sentinel-2 Data for Shoreline Extraction and Positional Accuracy Assessment at Coronation Park, Lake Ontario, Canada

Version 2. This version replaces the earlier supplementary and statistical files following peer-review revision. It includes the corrected UAV photogrammetry workflow, final GCP information, corrected statistical datasets and sensitivity analyses, and supplementary robustness figures. The original UAV and Sentinel-2 source datasets remain unchanged.