Weather Tools and How to use Them

Rain Gauge

Measures the amount of rain that has fallen.
The way it works is that it collect the rain in a cup and you measure it with a ruler in millimeters or inches.

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Anemometer

Measures the wind speed. There are many types, but the simplest to use are: digital, and handheld. Digital anemometers display the wind speed on a screen. Usually you mount it on a post about 33 feet in the air. a handheld one you hold up to the breeze, and the wind speed is shown on a dial on the device.

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Thermometer

Measures the temperature. There are 2 main types of thermometers: alcohol, and mercury. They both work similarly, they both use the temperature to expand, or contract the liquid inside of them. Basically this means that the red line moves up and down according to the temperature. You place the thermometer in a box about two feet off the ground to get an accurate reading.

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Hydrometer

Measures the amount of moisture in the air. These are an essential to weather forecasters. Without these you can not know what the dew point is, or the likely hood of rain. These are often placed with the thermometer in the weather box.

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Barometer

Measures the air pressure in an area. Barometers are also an essential to at home weather forecasting people. They can tell you if a storm is coming, and how quickly it is coming. If the Barometer is rising, that means that clear skies and good weather are happening or coming. If it is low or dropping, this means that bad weather is coming, or is happening.

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Weather Super Computer

Calculates where and when weather will happen. Weather super computers are sometimes the size of a room. They take weather data from millions of weather stations almost all have one of the weather tools above.Every plane that flies over our heads is gathering weather data. Many people have a weather station in their backyards, and many highways have weather stations. Every day many weather balloons go up into the skies gathering weather data. To predict the weather the super computer runs hundreds of weather simulations of the weather. After it runs all of them, it uses the simulations that happened the most and that is what it thinks will happen.

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Sources

http://inventors.about.com/od/astartinventions.htm
http://www.history.noaa.gov/tools/weathertech.html
Honeywell Weather Station User Manual
A Guide to Weather

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