This tool has been developed within the IDEWA project to produce Chlorophyll-a (CHL-A) and Total Suspended Material (TSM) maps starting from Landsat L8 and L9 data. The investigated area, which cannot be changed, is a small subset of the Saragoza Province (North-East Spain), centred on the Mequinenza village, just at the confluence of the Ebro and Segre rivers.