The scientists studied flooding in the Meenachil river basin in Kerala using computer tools. They made maps to show where floods might happen in the future. They looked at a big flood in 2018 to see how it affected the area. By using rainfall and river data, they found the highest flood level and how much land was covered by water. They also saw that the water got deeper as it flowed downstream. The researchers used satellite images to see which types of land were affected by the flood.