Beaufort scale
Empirical measure describing wind speed based on observed conditions
Beaufort scale
The Beaufort scale ( BOH-fərt) is an empirical measure that relates wind speed to observed conditions at sea or on land. Its full name is the Beaufort wind force scale. It was devised in 1805 by Francis Beaufort, a hydrographer in the British Royal Navy. It was officially adopted by the Royal Navy and later spread internationally.
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