Where has it flooded 2. Why has it flooded? Why here? Why now? a. Elevation The low-lying areas (green & blue) have flooded first. Source: https://en-gb.topographic-map.com/maps/lpj1/Bengaluru/; Flooded areas marked out in blue. Moreover, areas subject to the highest flooding were often the lowest lying within a vicinity. Naturally, water flowed into them. b. Land-use change …