A system of estimating and reporting wind speeds invented in the early 19th century by Admiral Beaufort of the British Navy. In its present form for international meteorological use it equates (a) Beaufort force, (b) wind speed, (c) descriptive term, (d) visible effects upon land or sea objects.
A system for estimating the wind speed by observing the state of the sea, using a scale on which successive ranges of wind velocities are assigned code numbers from 0 to 12, corresponding to categories from calm to hurricane. Devised by British Admiral Sir Francis Beaufort (1774-1857).
A scale classifying wind strength in terms of observable effects both on the sea and over land. Copies of the Beaufort Wind Scale for both land and water are included with this terminology guide.
A system of estimating and reporting wind speeds. In its present form for international meteorological use it equates (a) Beaufort force (or Beaufort number), (b) wind speed, (c) descriptive term, and (d) visible effects upon land objects or sea surf.
A system of estimating and reporting wind speeds. It is based on the Beaufort Force or Number, which is composed of the wind speed, a descriptive term, and the visible effects upon land objects and/or sea surfaces. The scale was devised by Sir Francis Beaufort (1777-1857), hydrographer to the British Royal Navy. SEE CHART BELOW.
a system using numbers from 0 to 12 to express wind speed; devised by Admiral Sir Francis Beaufort in early nineteenth century and slightly revised over the years
A system used to classify wind speed, developed in 1805 by British Admiral Francis Beaufort.
First used in the early nineteenth century by the British Navy. For every number on the scale, there is a descriptive term such as light air, strong breeze, fresh gale, etc.
A system of estimating and reporting wind speed, originally based on the effect of various wind speeds on the amount of canvas that a full-rigged nineteenth century frigate could carry.
A method for estimating wind speed based on observation of visual indicators of wind effects (e.g. smoke drift, flag and tree movement). Suggested for use when an anemometer is lacking or is not in operating condition.
Used to gauge wind speed using observations of the winds effects on trees and other objects. LINK TO BEAUFORT SCALE TABLE
Descriptive system that determines wind speed by noting the effect of the wind on the environment. Originally developed for use at sea by Admiral Beaufort of the British Navy in 1806.
A system of estimating and reporting wind speeds using a numerical scale ranging from 0 ( calm) to 12 ( hurricane). It was invented in the early nineteenth century by Admiral Beaufort of the British Navy and was originally based on the effects of various wind speeds on the amount of canvas that a full- rigged frigate of the period could carry. It has since been modified and modernized and in its present form for international meteorological use it equates 1) Beaufort force (or Beaufort number), 2) wind speed, 3) descriptive term, and 4) visible effects upon land objects or sea surface. One land adaptation is the NRM wind scale. U.S. Weather Bureau, 1955: Circular N, 7th ed., p. 100. U.S. Weather Bureau, 1954: Circular M, 9th ed, p. 14. Byers, H. R., 1944: General Meteorology, 83–85. Donn, W. L., 1951: Meteorology with Marine Applications, 132–135. List, R. J., ed., 1951: Smithsonian Meteorological Tables, 6th rev. ed., p. 119.