Meteorological Instruments

Meteorological Instruments Barometer Barometer  Used to determine atmospheric pressure – Two Types  Aneroid Barom

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Meteorological Instruments

Barometer

Barometer 

Used to determine atmospheric pressure – Two Types  Aneroid Barometer - Expansion or contraction of the vacuum chamber, caused by a change in air pressure, forces the pointer to move.  Mercurial Barometer – It uses a long glass tube, open at one end and closed at the other. Air pressure is measured by observing the height of the column of mercury in the tube.

Thermometer 

is a device that measures temperature or temperature gradient using a variety of different principles

Hygrometer or Psychrometer Hygrometers are instruments used for measuring relative humidity. A simple form of a hygrometer is specifically known as a "psychrometer" and consists of two thermometers .  Relative humidity is a term used to describe the amount of water vapor that exists in a gaseous mixture of air and water. 

Anemometer 

anemometer is a device for measuring wind speed, and is one instrument used in a weather station.

Wind Vane 

A weather vane, also called a wind vane, is a movable device attached to an elevated object such as a roof for showing the direction of the wind. Very often these are in the shape of cockerels and are called weather cocks. Arrows are also popular, but a multitude of designs have been used.

Prop Anemometer 

Helicoid propeller anemometer incorporating a wind vane for orientation.

Quiz 1._____ Used to determine atmospheric pressure.  2._____ is a movable device attached to an elevated object such as a roof for showing the direction of the wind.  3._____ is a device for measuring wind speed 

Quiz 4._____ are instruments used for measuring relative humidity.  5._____ is a device that measures temperature or temperature gradient using a variety of different principles  6._____7._____Two(2) types of barometer.  8._____is a term used to describe the amount of water vapor that exists in a gaseous mixture of air and water. 

Identify the following pictures 

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Identify the following pictures 

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