Geography

• Convectional rainfall


  The Sun warms up the land and the water in soil evaporates. Clouds then form due to cooling air. Precipitation occurs and the cycle restarts.
• Frontal rainfall


  A front is formed from warm and cool air and the warm air rises. As it rises it forms clouds and rains along the front.
• Relief rainfall


  Wind pushes warm air and it rises due to the shape of the land. The air cools and it rains.
• Microclimate


  An area that has a climate different to the area around it
• Microclimates


  • Can be big and small
  • Can extend for miles or occur within a garden
• Tropical Storms


  • Develop when sea temperature is 27C or higher
  • Need a warm ocean which is at least 70 metres deep
  • Warm moist air rises and condensation occurs which releases huge amounts of energy
• Tropical Storms


  • Develop at latitudes 5 degrees North and South of the equator
  • If wind speed exceeds 32mph, it is a tropical storm
  • If wind speed exceeds 74mph, it is a hurricane
  • The most violent section is the eyewall
• Tropical Storms develop when sea temperature is 27°C or higher
• Tropical Storms need a warm ocean which is at least 70 metres deep
• Warm moist air rises and condensation occurs which releases huge amounts of energy in tropical storms
• Tropical storms develop at latitudes 5 degrees North and the equator
• If the wind speed exceeds 32mph, it is a tropical storm
• If the wind speed exceeds 74mph, it is a hurricane
• The most violent section of a tropical storm is the eyewall
• Development indicator


  A measure of how developed a country is
• Development indicator


  • Can look at social, economic, political and environmental information
• Development


  Improvement in the standard of living of people in a specific country
• Hurricane Irma struck


  September 2017
• Hit Barbuda as a category 5 and destroyed 95% of buildings
• Hit British Virgin Islands as category 5 and caused Riley 5
• Hit Turks and Caicos as a category 5
• Hit Cuba as category 5 and killed at least 10 people
• Hit Bahamas as category 4 and caused the biggest evacuation in their history, but escaped a direct hit
• Hit Miami as category 4 and caused port outages
• Hit Tampa as a category
• It displaced millions and caused billions in damage
• Birth rate

  The number of births per year in a population
• Death rate

  The number of deaths per year in a population
• Population steady

  Births and deaths are equal
• Population increase

  More births than deaths
• Population decrease

  More deaths than births
• Population distribution

  The spread of people across an area
• Population density

  The number of people living within a particular area, usually per km²
• Sparsely populated

  An area where few people live
• Densely populated

  A high number of people living in a particular area
• Population distribution factors


  • Physical factors
  • Human factors
• Physical factors for population distribution


  • Close to rivers
  • Growing crops
  • Good healthcare
  • Wealth
• Human factors for population distribution


  • Many jobs
  • Dis
  • Has driven people out
  • Mande cass
• High birth and death rates cause total population to increase
• Low birth and death rates cause total population to decrease