Section outline

  • Measuring

    The art of Self Discipline

    Global Network.   World Meteorological Assoc.

    A world wide global network of monitoring stations and satellites gather data to tell us all what the weather is doing.

    The network helps to predict what could be life threatening weather patterns such as typhoons cyclones, storms, strong winds, heavy snow storms and weather induced landslides.

    Incredible cooperation between almost every country in the world to get up to date warnings on weather issues.

    One of the lead tools in the study of climatic change.

    Maps | Data Basin
    Climate is the study of weather patterns over a long period of time. Areas on the planet are often described by their climatic types. The cyclone belt in America is an example
    Global weather stations

    Min/Max Thermometer, Rain gauge, Wind Vane

    Min/max thermometers are a u shaped glass tube that measures the minimum and maximum temperatures.
    In each end of the tube is a piece of metal that is pushed to the min or max temperature.
    As the temperature changes the mercury moves away from the block leaving it at the temperature reading.
    The blocks can be reset with a magnet.
    There are many variations to this theme.

    Rain gauge is a simple container that collects and measures the amount of rain that falls in millimeters.
    Newer versions are digital and can transmit data via the internet.

    A wind vane shows the direction the wind is coming from.
    Digital versions can store and transmit wind direction and wind speed to the internet.

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    • The-global-network-of-World-Weather.png
    • HistoricAdvancesMeteorology.jpg

    • The weight of the molecules pressing down on
      every square centimeter of our bodies.


      Atmospheric Pressure.jpg

    • Pic: Barometer

      02 barometer.jpg

      Barometer
      For measuring air pressure.
      (the sign of rain or good weather).

      The pressure the atmosphere pushes in all directions and is about 1kg per sq/cm. at sea level.

      4 types of pressure measurements.
      Inches of Mercury (inHg) - Used mainly in the United States.
      Millibars (mb) - Used by meteorologists.
      Pascals (Pa) - The SI unit of pressure, used worldwide.
      Atmospheres (Atm) - Air pressure at sea level at a temperature of 59 °F (15 °C)

      The average square area of skin on a human is 1.5 to 2 meters.
      The weight is about 17 tonnes.

      The kilopascal is a unit of pressure. 1 kPa is approximately the pressure exerted by a 10-g mass resting on a 1-cm2 area.


    • Wind flows clockwise around high pressure areas north of the equator.
      Wind flows anti-clockwise around high pressure areas in the Southern Hemisphere.


    • Humidity

      The art of Self Discipline

      Humidity is important to know

      For people and animals humidity stops the cooling affect of evaporation. Evaporation is what cools our bodies.

      This can lead to dangerous levels of overheating. Severe illness or even death can result from heat stress, and it can trigger other problems with breathing, heart attacks or strokes.

      At big sporting events with lots of people special precautions should be made for the problems of over heating.

      Humidity and rain

      Warm humid air contains lots of water.

      Warm wet air rises and condenses into droplets of water when it reaches the cooler upper layers.

      The droplets then fall back to earth as rain.

      Humid air causes the Greenhouse affect naturally to keep the planets temperature at liveable temperatures.

      Greater than -18 degrees on most of the planet.

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      psychromoter.jpg

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    • 03 hygrometer.jpg

      The Hygrometer is used for
      measuring moisture content in the air.

      Moisture content is called Humidity.

    • 05 anemometer.jpg

      Anemometer is to measure wind speed.

      Knowing wind speed tells weather forecasters if storms are weakening or getting stronger

    • Quiz: Weather Atmosphere Spelling
      Students must
      Receive a grade
      Receive a passing grade
      Spelling
      Weather and Atmosphere words. Check your spelling.
    • Quiz 02: Weather Atmosphere Spelling
      Students must
      Receive a grade
      Receive a passing grade
      Spelling
      More spelling words with extra information about weather and weather terms
    • Quiz: Measuring tools for weather.
      Students must
      Receive a grade
      Receive a passing grade
      Measuring quiz
      Weather and how we measure the affects and the data used for prediction. The data is also used by meteorologist to study climate control.