Providing relatively fine spatial resolution multispectral data. Landsat-8. Landsat-7 (L8 and L7. respectively) and Sentinel-2 (S2) from 2013 to 2018 have been used in this study for enabling high-frequency monitoring of water quality of two small (the smaller with an area of 1. https://www.roneverhart.com/Dr-Squish-Squishy-Refill/