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In meteorology, an anemometer (from Ancient Greek άνεμος (ánemos) 'wind' and μέτρον (métron) 'measure') is a device that measures wind speed and direction. It is a common instrument used in weather stations. The earliest known description of an anemometer was by Italian architect and author Leon Battista Alberti (1404–1472) in 1450.
Anemometer for measuring wind speed; Pyranometer for measuring solar radiation; Rain gauge for measuring liquid precipitation over a set period of time; Wind sock for measuring general wind speed and wind direction; Wind vane (also called a weather vane or a weathercock) for showing the wind direction
An anemoscope c1920s built by the American instrument maker Julien P. Friez & Sons is in the collection of Harvard university was designed to be used as part of an automatic wind recorder alongside a wind speed measuring anemometer. [3] Today anemoscopes are used in meteorological stations, and in transport especially boats.
An anemometer is commonly used to measure wind speed. Global distribution of wind speed at 10m above ground averaged over the years 1981–2010 from the CHELSA-BIOCLIM+ data set [ 1 ] In meteorology , wind speed , or wind flow speed , is a fundamental atmospheric quantity caused by air moving from high to low pressure , usually due to changes ...
In 1450, Leone Battista Alberti developed a swinging-plate anemometer, and is known as the first anemometer. [1] In 1607, Galileo Galilei constructs a thermoscope. In 1643, Evangelista Torricelli invents the mercury barometer. [1] In 1662, Sir Christopher Wren invented the mechanical, self-emptying, tipping bucket rain gauge.
Anemometer, weather vane, anemoscope A windsock (a wind cone or wind sleeve) is a conical textile tube that resembles a giant sock . It can be used as a basic indicator of wind speed and direction , or as decoration.
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A hot-wire anemometer, for example, registers decreases in wire temperature, which can be translated into airflow velocity by analyzing the rate of change. Convective cooling is a function of airflow rate, and the electrical resistance of most metals is dependent upon the temperature of the metal, which is affected by the convective cooling. [5]
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