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WEATHER AND CLIMATE

WEATHER AND CLIMATE. PREP II. What is climate?. The weather conditions prevailing in an area in general or over a long period. A region with particular prevailing weather conditions. Difference between weather and climate

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WEATHER AND CLIMATE

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  1. WEATHER AND CLIMATE PREP II

  2. What is climate? • The weather conditions prevailing in an area in general or over a long period. • A region with particular prevailing weather conditions. Difference between weather and climate • Weather is what conditions of the atmosphere are over a short period of time • climate is how the atmosphere "behaves" over relatively long periods of time.

  3. Wind • The perceptible natural movement of the air, esp. in the form of a current of air blowing from a particular direction: "an easterly wind". • A twist or turn in a course. Monsoon • A wind system that influences large climatic regions and reverses direction seasonally.

  4. Weather instruments Weather instruments are used to take measurements of various atmospheric parameters at local weather stations

  5. Hygrometer • This is a big word for the device that measures the humidity in the local atmosphere. Humidity is the percentage of water vapor in the surrounding air. Thermometer • Everyone has probably heard of these. Thermometers are used in many places to measure temperature. If you get sick, that's one type of thermometer.

  6. Rain gauge Instrument used to measure the amount of liquid precipitation over a certain length of time. In its simplest sense, a rain gauge is nothing more than a can which collects water which falls from the sky as rain.

  7. Barometer • Atmospheric pressure is measured by barometers.  An aneroid barometer, one of the most common types, uses a sealed can of air to detect changes in atmospheric pressure.

  8. Anemometer • An anemometer is a type of weather instrument that measures wind speed. Some of these instruments measure both wind speed and wind direction. 

  9. Köppen Climate Classification System The Köppen Climate Classification System is the most widely used for classifying the world's climates. Most classification systems used today are based on the one introduced in 1900 by the Russian-German climatologist WladimirKöppen. Köppen divided the Earth's surface into climatic regions that generally coincided with world patterns of vegetation and soils.

  10. A - Moist Tropical Climates are known for their high temperatures year round and for their large amount of year round rain. B - Dry Climates are characterized by little rain and a huge daily temperature range. Two subgroups, S - semiarid or steppe, and W - arid or desert, are used with the B climates. • C - In Humid Middle Latitude Climates land/water differences play a large part. These climates have warm,dry summers and cool, wet winters. • D - Continental Climates can be found in the interior regions of large land masses. Total precipitation is not very high and seasonal temperatures vary widely. • E - Cold Climates describe this climate type perfectly. These climates are part of areas where permanent ice and tundra are always present. Only about four months of the year have above freezing temperatures.

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