Data represents satellite derived measures of cyanobacteria biomass across largest US lakes. This dataset is not publicly accessible because: Already publicly available at link below. It can be accessed through the following means: Original satellite files are publicly available at https://oceancolor.gsfc.nasa.gov/about/projects/cyan/. Format: GeoTIFF data, HE5 files. This dataset is associated with the following publication: Coffer, M., B. Schaeffer, W. Salls, J. Minucci, and O. Cronin-Golomb. Recommendations for temporal aggregation of water quality data from multi-platform satellite constellations. INTERNATIONAL JOURNAL OF REMOTE SENSING. Taylor & Francis, Inc., Philadelphia, PA, USA, 47(1): 177-199, (2026).