Geography revision YEAR 9

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Author:
taracullen
ID:
311497
Filename:
Geography revision YEAR 9
Updated:
2015-11-15 07:14:02
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geography
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Geog Y9
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  1. What is weather?
    Weather describes the day to day condition of the atmosphere at one particular place.
  2. What is the study of weather called?
    Meteorology
  3. What are people who study weather called?
    Meteorologists
  4. What are the elements of weather?
    • Temperature
    • Precipitation
    • Visibility
    • General weather
    • Wind direction
    • Wind speed
    • Cloud cover
  5. Temperature

    What is temperature measured in and what with?
    • Degrees celcius and farenheight
    • Thermometer
  6. Precipitation

    What is precipitation measured in and what with?
    • mm
    • Rain gauge
  7. Wind speed

    What is wind speed measured in and what with?
    • mph
    • anemometer
  8. Wind direction

    What is wind direction measured in and what with?
    compass points and wind vane
  9. Cloud cover

    What is cloud cover measured in and what with?
    eighths and the naked eye
  10. Visibility

    What is visibility measured in and what with ?
    metres and the visibility meter
  11. Pressure

    What is pressure measured in and what with?
    Millibars and with a barometer
  12. Low pressure/ depression

    What happens in a low pressure system?
    The warm air rises, cools, condenses (forming clouds) and eventually rain.
  13. High pressure/ anticyclones

    What are anticylones?
    Areas of HIGH atmosphetic pressure. They usually give good weather. In a high pressure system the cool air sinks towards the surface of the atmosphere.
  14. What does an anticyclone do in cold conditions?
    In cold conditions anticyclones may also bring fog and mist as the cold forces moisture in the air to condense at low altitudes.
  15. What is climate?
    Climate is the average weather experienced by a particular area over a period of atleast 30 years.

    EG. The UK has a mild climate.
  16. Climate- Factors affecting it

    There are 5 main factors, what are they?
    • Latitude
    • Distance from the coast
    • Prevailing wind
    • Altitude
    • Ocean currents
  17. What is Latitude?
    If you move north or south from the Equator, temperatures reduce. Latitude is the distance in degrees north or south of the Equator.
  18. What is Distance from the Coast?
    Summer- The land heats up quicker than the sea. The heat is stronger on the land and it is retained for a short while. The sea takes longer to heat but once it is heated it will retain it. Thus, inland areas have higher temperatures than coastal areas.

    Winter- In winter the land loses it's heat quickly, but the sea maintains its heat built up from summer. Therefore, coastal areas will have warmer temperatures than the inland.
  19. What is Prevailing wind?
    Prevailing wind affects our climate because Ireland is bside the Atlantic Ocean and the water vapour is blown over to Ireland (in a south westerley direction) which leads to lots of rain.
  20. What is Altitude?
    Altitude affects the climate. The higher you are above sea level the cooler it is. For every 100 metres the temperature drops by roughly 1 degree celcius.

    EG. In the alps, if you live on a mountain the temperatures would be much lower than somewhere like Cambridge where it is flat.
  21. What is Ocean Currents?
    (EG) A warm ocean current called the North Atlantic Drift warms the west coast of the UK in winter, by warming the wind. This ocean current originates in the Gulf of Mexico where it is very hot, therefore it warms the water. As the wind blows over the warm current it warms the wind making our winters a little bit warmer. Coastal areas are mainly affected (west)

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