This repo contains the data cleaning steps for the Copernicus Hackathon: cloud and snow detection challenge. First we downloaded data from the Swedish Meteorological centre (SMHI) on hourly clouds observations and snow depth.
Then with the datetime stamps from the satellite imagery, we triangulate with ground measuremets to obtain annotated datasets indicating whether there was snow or clouds when the Sentinel 2 took the image. Data is accessible from SMHI website and their API.