“…The water pixels of the study area were extracted using the water map generated by applying Normalised Difference Water Index (NDWI). This index is widely used for the delineation of the surface water bodies employing Sentinel imagery in diverse aquatic ecosystems (McFeeters 1996;Ouma and Tateishi, 2006;Lu et al, MSIL1C 22-05-2016MSIL1C 22-05- , 7-5-2017MSIL1C 22-05- , 12-5-2018MSIL1C 22-05- , 17-5-2019MSIL1C 22-05- , 21-5-2020MSIL1C 22-05- , 26-5-2021MSIL1C 22-05- 16-02-2017MSIL1C 22-05- , 21-2-2018MSIL1C 22-05- , 16-2-2019MSIL1C 22-05- , 21-2-2020 -2016, 14-05-2017, 29-05-2018, 24-05-2019, 28-05-2020, 13-05-2021 09-02-2016, 03-02-2017, 28-02-2018, 13-02-2019, 18-02-2020, 22-02-2021 2017; Deng et al, 2020;Phankamolsil and Kositsakulchai 2020) including reservoirs Anand et al (2019a;. This index uses NIR and green bands, as it is strongly absorbed by the water (McFeeters, 1996).…”