The researchers used satellite images and GIS technology to study two watersheds in Karnataka. They analyzed the shape and size of the land to estimate how much water can flow through them during heavy rain. The Chikkur watershed has a higher peak discharge of 46.56 cusecs, while the Lailapura watershed has a lower peak discharge of 10.31 cusecs. This information helps in understanding how water moves through these areas and can be useful for managing water resources in the region.