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Hot wire anemometers use a fine wire (on the order of several micrometres) electrically heated to some temperature above the ambient. Air flowing past the wire cools the wire. As the electrical resistance of most metals is dependent upon the temperature of the metal ( tungsten is a popular choice for hot-wires), a relationship can be obtained ...
Weather stations typically have these following instruments: . Thermometer for measuring air and sea surface temperature; Barometer for measuring atmospheric pressure; Hygrometer for measuring humidity
Modern instruments used to measure wind speed and direction are called anemoscopes, anemometers and wind vanes. These types of instruments are used by the wind energy industry, both for wind resource assessment and turbine control.
Each remote sensing instrument collects data about the atmosphere from a remote location and, usually, stores the data where the instrument is located. The most common types of remote sensing are radar, lidar, and satellites (also photogrammetry). The main uses of radar are to collect information concerning the coverage and characteristics of ...
Tower of the Winds, Athens 2nd century BCE.A bronze Triton once served as a weather-vane but has vanished. An anemoscope is a device designed to show the direction of the wind, or to indicate a change of wind direction .
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