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Mye 2014 4 e revision requests

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4E MYE 2014 Revision request

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Mye 2014 4 e revision requests

  1. 1. MYE 2014 Combined Humanities P2 Elective Geography Sec 4 Express Quick Revision
  2. 2. Topics requested • Regional Winds –Monsoons • Local Winds –Land and Sea Breeze • Landforms caused by plate tectonics • Impacts of natural disasters on humans
  3. 3. Monsoon Winds • A regional wind pattern • Brings seasonal changes in precipitation • Affected by Coriolis effect • Northern hemisphere -> deflects to the right • Southern hemisphere -> deflects to the left • Coriolis effect is stronger nearer the poles and weaker near the equator
  4. 4. Monsoon Winds • For purposes of study, we will use the monsoon winds blowing between Asia and Australia as an example • You should keep the following background knowledge that you ALREADY HAVE… – Summer = Higher Temp, Winter = Lower Temp – High Temp = Low pressure, Low Temp = High pressure – Concept of relief rain and rain shadow – Coriolis Effect: North = Right and South = Left
  5. 5. Southwest Monsoon (pg 88, figure 2.26) • June to September • Summer in northern hemisphere, winter in southern hemisphere • Winds move from Australia (south) to Asia (north) • From Australia, wind moves as southeast monsoon • As it crosses the equator, it deflects to become southwest monsoon • The air picks up moisture over Indian Ocean and brings heavy rain to India
  6. 6. Northeast Monsoon (pg 88, figure 2.27) • October to February • Summer in southern hemisphere, winter in northern hemisphere • Winds move from Asia (north) to Australia (south) • From Asia, wind moves as northeast monsoon • As it crosses the equator, it deflects to become northwest monsoon • The air picks up moisture over Indian Ocean and brings heavy rain to Australia
  7. 7. Possible Question Types • With reference to a location explain the impact of monsoons on rainfall / agriculture / lifestyle of that area. (eg, India, Singapore, Malaysia) • Map given to show an area of the earth with wind direction. Asked to explain the wind pattern shown/observed. (map of Australasia) • Climograph of an area that experiences monsoon climate (peak rainfall and overall high temperature). Asked to identify the climate type shown as well as describe the Climograph.
  8. 8. Local Winds Land Breeze and Sea Breeze
  9. 9. Land Breeze • Coastal effect experienced at night • Sea retains heat better at night, air parcel above the sea is warmer. • Warmer air rises up, leaving a vacuum. • The cooler air above the land rushes out to the sea. • This movement of air from land to sea forms the land breeze
  10. 10. Land Breeze Diagram
  11. 11. Sea Breeze • Coastal effect experienced in the day • The air above the land heats up faster than the air above the water. • Warmer air rises up, leaving a vacuum. • The cooler air above the sea rushes into the land. • This movement of air from sea to land forms the sea breeze
  12. 12. Possible Questions • Scenario where person experiences land or sea breeze. Explain what is the phenomenon shown. • Data of wind direction and wind speed recording at seaside/ coastal area. – Explain what is shown by the data, explain the phenomenon.
  13. 13. Landforms caused by Plate Tectonics
  14. 14. Review Comparison Table Plate boundary type Associated landforms Example Divergent Oceanic-Oceanic Deep sea ridge Mid-Atlantic Ridge Divergent Continental-Continental Rift Valley Great African Rift Valley Convergent Oceanic-Oceanic Deep Sea Trench, Volcanoes, Volcanic Islands Mariana Trench, Mariana Islands, Pacific plate and the Philippine plate Convergent Oceanic-Continental Deep Sea Trench, subduction zone, Volcanoes, Fold mountains Sunda Trench, Barisan mountains, Australian plate and the Eurasian plate Convergent Continental-Continental Deep sea trench, subduction zone, fold mountains Himalayas, Eurasian plate and the Indian plate
  15. 15. Continental-Continental plate convergence • When two equally dense continental plates converge. • There will still be a subduction occurring for one of the plates. However there is a large amount of friction built-up before it occurs. • The strong force generated also causes folding. • At such plate boundaries, large mountain ranges tend to form. (Himalaya)
  16. 16. Oceanic-Continental plate convergence • When an oceanic plate converges with a continental plate. • The dense oceanic plate is forced down into the mantle. • A deep sea trench is often formed at the subduction zone. • The continental plate folds and forms fold mountains and volcanoes • Volcanoes tend to be a result if melted magma is able to rise up through cracks in the crust back to the surface.
  17. 17. Possible Question Types • With reference to diagram shown (either Constructive / Destructive / Transform boundary), explain what is occuring and what are some possible effects experienced in the area. • With the aid of a diagram, explain what occurs at a constructive/destructive/transform boundary.
  18. 18. Factors affecting earthquake damage • Population Density • Level of Preparedness • Distance from epicentre • Time of occurance • Soil type
  19. 19. Possible Questions • ‘Factor’ is the most improtant factor in chances of survival in an earthquake. How far do you agree with this statement? • ‘natural disaster 1’ is the most devastating form of natural disaster to humans and their property. How far do you agree with this statement?

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