A Study on Water Security for Bengaluru: A Predictive Analytics using Sentinel data

Water is the lifeline of living beings. It is one of the most essential fundamental element to sustain the life. Bengaluru-“The City of Gardens”, “The city of Thousand Lakes” or “Necklace of Lakes” has now become like a once upon a time story because of heavy exploitation of the resources and uprooting of the trees in the name of Urbanization. Bengaluru was said to have around 1000 lakes earlier and now because of real estate revolution many lakes are dried up and sky scraping buildings are seen everywhere. It is said that now around 100 odd lakes only are there and no lake is Potable. Almost all the lakes in Bengaluru fall in D or E category. We need to safeguard our lakes, recharge, maintain our wells, and enhance the utilization of our groundwater aquifers effectively [1 May 7 2024, Avinash Murthy]. It is important to study and understand the declination of the areas of existing potable water lakes. Sentinel data, which is supplied by the Copernicus Program of the European Space Agency, is essential for tracking changes in urban areas, aquatic bodies, and land usage. Data from Sentinel-1 (SAR) and Sentinel-2 (optical) are very pertinent. In order to analyse satellite data and develop prediction models, geospatial approaches are essential. This involves the use of remote sensing tools and Geographic Information Systems (GIS). Using the sentinel images [2] of 4 lakes of Bengaluru North, the diameter of the water body is obtained from previous records and the primary data of 2025 is gathered in our work.