Weather Measurement Instruments

Weather has a great effect on every day life on the homestead.  Because many homesteads are out in the boondocks, watching weather forecasters on your local news station isn’t the most accurate way to assess or predict weather for your homestead.  There are very sophisticated, electronic weather predicting equipment currently available on market.  But, what if electricity is at a premium on your homestead?  Or maybe, you wish to understand weather basics?  Or possibly, you wish to discover the perfect micro-climate for your orchard?  This list is for you!  Create your own Weather Station for your homestead with these basic tools.

Thermometer

Is a an instrument for measuring and indicating temperature, typically consisting of a narrow, sealed glass tube marked with graduations and having at one end a bulb containing mercury or alcohol that expands and contracts in the tube with heating and cooling.

Barometer, Altimeter and Barographs

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Barometer

Is an instrument measuring atmospheric, or barometric pressure, which predicts changes in the weather and determines altitude.  Barometric pressure, is the pressure exerted by the weight of air in the atmosphere.  A barometer  has a glass tube closed at one end with an open mercury-filled reservoir at the base. Mercury in the tube adjusts until the weight of the mercury column balances the atmospheric force.

High atmospheric pressure places more force, forcing mercury higher in the column.

Low pressure allows the mercury to drop to a lower level in the column by lowering the force placed on the reservoir.  Barometers measure atmospheric pressure in a stationary position.  Altimeters are essentially the same instruments, but are intended to be taken from place to place.

Barograph

A barograph is the same instrument as a barometer, but also includes a device which automatically records the barometric pressure over a time period.

Rain Gauge

A rain gauge is a type of instrument to gather and measure the amount of liquid precipitation over a set period of time.

Hygrometer

Rain Gauge

A Hygrometer is an instrument used for measuring the moisture content in the atmosphere.

Wind Gauge & Anemometer

A Wind Gauge and Anemometer are instruments used for measuring the direction and force or speed of the wind.

Compass

A Compass is an instrument for determining directions by means of a magnetic needle or group of needles turning freely on a pivot and pointing to the magnetic north.

Clock

A Clock is an instrument which measures and indicates time, commonly by means of hands moving on a dial.

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Anemometer

Calendar

A calendar is a system for fixing the beginning, length, and divisions of the year and arranging days and longer divisions of time (as weeks and months) in a definite order.

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