The average rainfall for a given region can be approximated by taking samples from scattered weather stations. But that sparse distribution of samples can make it difficult to form a truly accurate map of rainfall patterns--which can be invaluable for predicting floods. So researchers from the University of Hanover in Germany have come up with a better, and surprisingly more accurate, approach: measuring the speed of windshield wipers.
The average rainfall for a given region can be approximated by taking samples from scattered weather stations. But that sparse distribution of samples can make it difficult to form a truly accurate map of rainfall patterns--which can be invaluable for predicting floods. So researchers from the University of Hanover in Germany have come up with a better, and surprisingly more accurate, approach: measuring the speed of windshield wipers.
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