An Experimental Investigation on Saltwater Intrusion in Kona Seema, Mapping, And Modeling Using GIS

The experimental study focused on investigating saltwater intrusion in the coastal areas of Konaseema. Coastal regions face significant challenges due to saltwater intrusion into freshwater sources, impacting ecosystems and local communities. Field investigations involve monitoring groundwater salinity levels at various locations in Konaseema by using a TDS meter (Total Dissolved Solids). We visited 29 different villages and evaluated 206 wells and pumps manually from different areas covering an area of around 800kmsq. Then the test data were arranged, and maps were collected from various sources like Google Maps, and the Administrative Map of India. The data obtained from water testing were used to develop the spatial distribution map. Then the data collected was analyzed by developing an interpolation map showing the distinct colors and lines of intrusion in the study area. The water quality analysis work's findings were displayed as Spatial Distribution maps that may be utilized to comprehend better the study area's current salinity and the intrusion level situation. The variation in the TDS level and its intrusion was discussed according to the outcomes of the data analysis. Key Words: Saltwater intrusion, Salinity, TDS meter, Spatial Distribution, GIS