Scientists using Doppler lidar to measure air currents and vortices created by uncontrolled blazes show why big fires spread more easily

There has been a rash of severe wildfires this year, in Europe, the US and elsewhere. A new study, using data on 23 wildfires in America’s western states, shows how such fires grow and spread by creating their own weather. The study, by researchers at San José State University, gathered the wildfire data using Doppler lidar, a form of laser-based radar.

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