Remote Detection of Cyanobacterial Blooms and Chlorophyll-a Analysis in a Eutrophic Reservoir Using Sentinel-2

Harmful cyanobacterial blooms have been one of the most challenging ecological problems faced by freshwater bodies for more than a century. The use satellite images as tool to analyze these is an innovative technology that will facilitate water governance and help develop measures guarantee security. To assess viability Sentinel-2 identifying chlorophyl-a, different bands were considered, those consistent with cyanobacteria analysis analyzed. This was supplemented assessment indices their respective correlations field data. assessed following: Normalized Difference Water Index (NDWI), Differences Vegetation (NDVI), green (gNDVI), Soil Moisture (NSMI), Toming’s Index. band (B3) obtained best correlating results both chlorophyll (R2 = 0.678) 0.931). study composition can be powerful assessing physiology strains. NDWI gave R2 value 0.849 downstream point concentration cyanobacteria. high 0.859 chlorophyll-a 0.721 Notable differences in correlation upstream points indices. These show valuable lake monitoring research, especially considering data routinely available many years frequent free.