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How Weather is Measured

Thermometer

Thermometer for measuring air and sea surface temperature. A thermometer is a device that measures temperature or a temperature gradient. Thermometers are widely used in industry to monitor processes, in meteorology, in medicine, and in scientific research.
 

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+ Barometer

Barometer for measuring atmospheric pressure A barometer is a scientific instrument used in meteorology to measure atmospheric pressure. Pressure tendency can forecast short term changes in the weather.

+ Hygrometer

Hygrometer for measuring humidity A hygrometer is an instrument used for measuring the water vapour in the atmosphere, in soil, or in confined spaces. Humidity measurement instruments usually rely on measurements of some other quantity such as temperature, pressure, mass or a mechanical or electrical change in a substance as moisture is absorbed.

+ Anemometer

Anemometer for measuring wind speed An anemometer is a device used for measuring the speed of wind, and is also a common weather station instrument. The first known description of an anemometer was given by Leon Battista Alberti in 1450.

+ Pyranometer

Pyranometer for measuring solar radiation A pyranometer is a type of actinometer used for measuring solar irradiance on a planar surface and it is designed to measure the solar radiation flux density from the hemisphere above within a wavelength range 0.3 μm to 3 μm.

+ Rain Gauge

Rain gauge for measuring liquid precipitation over a set period of time A rain gauge is an instrument used by meteorologists and hydrologists to gather and measure the amount of liquid precipitation over a set period of time. Eg Rain, Sleet, snow and hail