Microclimate

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Microclimate

  1. 1. Microclimate <ul><li>A microclimate is the weather that is found in a relatively small, very local area (e.g. woodland, town on mountain valley) </li></ul><ul><li>What conditions affect weather conditions locally? </li></ul><ul><li>How would the following affect microclimates? </li></ul><ul><ul><li>Altitude </li></ul></ul><ul><ul><li>Exposure and shelter </li></ul></ul><ul><ul><li>Water </li></ul></ul><ul><ul><li>Buildings </li></ul></ul><ul><ul><li>Concrete </li></ul></ul><ul><li>Aspect </li></ul><ul><li>Coasts </li></ul><ul><li>Vegetation </li></ul>
  2. 2. Urban Microclimates
  3. 3. Urban microclimates <ul><li>What affects the microclimate in an urban area? </li></ul><ul><li>Concrete </li></ul><ul><li>Tarmac </li></ul><ul><li>Tall buildings </li></ul><ul><li>Surface drainage </li></ul><ul><li>Glass </li></ul><ul><li>Business and industry </li></ul>
  4. 4. The microclimate in a valley… <ul><li>North facing slopes: </li></ul>North South North-facing slope, this is much colder as it doesn’t have the sun heating it
  5. 5. Coastal microclimates <ul><li>In the summer there are local differences between the temperatures of the sea and the land. </li></ul><ul><li>As the high temperatures on the land make the air above them rise, the area of low pressure causes a breeze from the colder sea to move to fill the gap left </li></ul>
  6. 6. Forest Microclimates <ul><li>What would the forest of a microclimate be like? </li></ul><ul><li>Think about: </li></ul><ul><ul><li>Temperature </li></ul></ul><ul><ul><li>Wind </li></ul></ul><ul><ul><li>Sun intensity </li></ul></ul><ul><ul><li>Shelter </li></ul></ul>
  7. 7. A forest microclimate <ul><li>On a sunny day, it is warmer towards the edges of a forest </li></ul><ul><li>A dense forest would be colder in the middle </li></ul><ul><li>Wind speed would obviously be much lower in the forest </li></ul>
  8. 8. Case study question: <ul><li>Explain, with examples, how human activities can create a microclimate in an urban area. [9] </li></ul>

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