Difference between revisions of "Urban heat island"

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[[Category:Climate change]]
 
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[[Category:Exposures]]
 
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'''Urban heat island''' means an increased ambient temperature in urban areas, compared with rural areas nearby. It is caused by additional heat load from energy use, reduced albedo, reduced wind speed between buildings, and reduced water evaporation by plants within cities.
 
'''Urban heat island''' means an increased ambient temperature in urban areas, compared with rural areas nearby. It is caused by additional heat load from energy use, reduced albedo, reduced wind speed between buildings, and reduced water evaporation by plants within cities.
  
== Scope ==
 
  
What is the magnitude of the temperature gradient in [[:en:Toulouse|Toulouse]] (as an example of a typical European city suffering from the urban heat island effect) compared with the rural area nearby? What are possible measures to tackle the issue, and how effective are they in reducing the temperature?
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'''General
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* [[:en:Urban heat island|Urban heat island]] in [[Wikipedia]]
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* [http://www.epa.gov/heatisld/ Heat island effect]
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* [http://www.invisiblestructures.com/uhi.html What is Urban Heat Island Effect (UHI)?]
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* [http://science.howstuffworks.com/urban-heat-island1.htm What is the urban heat island effect?]
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* [http://geography.about.com/od/urbaneconomicgeography/a/urbanheatisland.htm Urban Heat Island]
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* [http://www.urbanheatislands.com/ Urban heat islands]
  
== Definition ==
 
  
=== Data ===
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'''Mitigation
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* [http://www.epa.gov/hiri/mitigation/index.htm Urban Heat Island Mitigation by U.S.EPA]
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* [http://www.springerlink.com/content/k02568k83515g83t/ Modeling effects of urban heat island mitigation strategies on heat-related morbidity: a case study for Phoenix, Arizona, USA]
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* [http://www.concretethinker.com/solutions/Heat-Island-Reduction.aspx Heat Island Reduction]
  
  
=== Dependencies ===
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'''Urban heat island myth
 
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* [http://www.desmogblog.com/urban-heat-island-myth-dead Urban Heat Island Myth is Dead]
* Energy use in cities
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* [http://www.skepticalscience.com/urban-heat-island-effect.htm Does Urban Heat Island effect exaggerate global warming trends?]
* Albedo in cities
 
* Wind speed in cities
 
* Vegetation in cities
 
* Water evaporation by vegetation in cities
 
* Measures to reduce heat load in cities
 
** Increased free water
 
** Increased vegetation
 
** Increased albedo
 
** Reduced energy use
 
** Heat load
 
 
 
=== Unit ===
 
 
 
K (kelvin)
 
 
 
=== Formula ===
 
 
 
 
 
== Result ==
 
 
 
{{resultlink}}
 
  
 
==See also==
 
==See also==
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[[Category:Mega case study]]

Latest revision as of 19:00, 10 August 2010


Urban heat island means an increased ambient temperature in urban areas, compared with rural areas nearby. It is caused by additional heat load from energy use, reduced albedo, reduced wind speed between buildings, and reduced water evaporation by plants within cities.


General


Mitigation


Urban heat island myth

See also

References


Related files

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