Circular cities get, and are likely to get, more intense rainfall compared to triangular or square cities, a new study has found. “Circular city shape shows potential risks of extreme rainfall and resultant flood risk,” says the study published in Earth’s Future journal.
The research used “idealised large eddy simulations coupled with the weather research and forecasting model to bridge the knowledge gap”.
Girdled by the Outer Ring Road, Hyderabad is now a circular city. For three centuries, the city was shaped like a triangle due to the encircling wall. Hyderabad has been seeing extreme variation in rainfall pattern over the last few years with some areas recording heavier rainfall.