App developed on Google Earth Engine for preliminary eutrophication assessment worldwide. The App uses and uses MODIS-Aqua (Moderate Resolution Imaging Spectroradiometer on Aqua) chlorophyll a as the main parameter to evaluate potentially eutrophic waters (see Terauchi et al. 2014 (doi:10.1007/s10872-014-0222-z), 2018 (doi:10.1117/12.2324641))