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How is wind speed measured?
Answered by Science Channel
  • Science Channel

    Science Channel

  1. Wind speed was originally categorized according to the Beaufort scale. Developed in 1806 by Adm. Sir Francis Beaufort, this system ranges from zero to 12, with a higher number indicating greater speed. This scale was used prominently until 1949, when the knot was adopted as the international unit for wind speed by what became the World Meteorological Organization. In 1955, the United States adopted the knot for use on all official weather charts.

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