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How do we measure the weather?

How do we measure the weather?. Weather. The daily atmospheric conditions Includes temperature, pressure, wind speed and direction, relative humidity, and precipitation. Temperature. Thermometer: Degrees Fahrenheit or Degrees Celsius. . Pressure.

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How do we measure the weather?

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  1. How do we measure the weather?

  2. Weather • The daily atmospheric conditions • Includes temperature, pressure, wind speed and direction, relative humidity, and precipitation.

  3. Temperature • Thermometer: Degrees Fahrenheit or Degrees Celsius.

  4. Pressure • A barometer measures atmospheric pressure in inches or millibars. Normal pressure at sea level is about 30 inches or 1013 millibars of pressure.

  5. Wind Speed • Anemometer

  6. Wind Direction • Wind Vane/Weather Vane. The pointer shows the direction of the wind.

  7. Relative Humidity • Psychrometer • Relative humidity is a measure of the amount of water in the air compared with the amount of water the air can hold at the temperature it happens to be when you measure it. • For example, you measure 20 grams of water vapor at room temperature. At room temperature the air can hold 40 grams of water vapor. • Relative humidity = 20 grams/40 grams = 0.5 * 100= 50% humidity.

  8. Precipitation • Rain Gauge or Meter Stick (for snow and ice)

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