May 17, 2026

Science Chronicle

A Science and Technology Blog

May 17, 2026

Science Chronicle

A Science and Technology Blog

Flood

Climate changeFloodFlood management
Prasad Ravindranath

A new district flood severity index factors in flood impact on people

Various indices that already exist focus on the magnitude of the floods or the inundation caused by the floods while ignoring the impact of flood on people, be it injury or deaths. The District Flood Severity Index developed by IIT Delhi and IIT Gandhinagar researchers addresses this lacuna

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Climate changeEnvironmentFloodMonsoon rainfallUrban planning
Chandan Sarangi

Urbanisation Shifts Peak Rainfall Inland, Increasing Flood Risk in Chennai

Storms interacting with Chennai’s urban environment consistently deposited their peak rainfall 16-20 km inland, whereas storms over rural areas peaked closer to the coast, within 8-12 km. Urbanisation thus plays a decisive role in altering the spatial distribution of rainfall, particularly by shifting the zone of heaviest precipitation farther inland

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