Global monthly land surface water mapping using three water indices from Landsat-8 and Sentinel-2

This dataset provides monthly global land surface water mapping using water indices derived from Earth observation satellite data. It was generated using imagery from two satellite missions, Landsat-8 and Sentinel-2. The dataset includes three water indices: Normalized Difference Water Index (NDWI2), Modified Normalized Difference Water Index (MNDWI), and Water Index 2015 (WI2015). A pixel was classified as water if the average index value within each month exceeded 0, and as non-water otherwise. The dataset has a spatial resolution of 300 m, covering the period from January 2019 to December 2021. Each dataset is provided in GeoTIFF format, which can be visualized and analyzed using GIS software. This dataset can be used for hydrological studies, flood monitoring, and water resource management.