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Urban Climate - Coggle Diagram
Urban Climate
Urban Heat Island Effect
The urban heat island defines the ruban area as a significantly warmer 'island' surrounded by a rural 'sea' of cooler temperatures
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Weather in urban areas
The characteristics of urban areas also influence precipitation, urban areas are seen to have more precipitation and more frequent intense weather storms
Atmospheric instability causes the urban heat island effect which causes more warm, moist air to rise above in cities and then cool and condense as rain
altering wind patterns, the buildings disrupt the wind causing less air to be dispersed
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Wind
Wind patterns are frequently altered by tall buildings and frictional drag can occur which causes turbulence and can force air to be deflected and swirl like a vortext
Air quality
Photochemical smog
Photochemical smog is a particular type of air pollution that is caused when particulates react with UV light from the sun. Nitrous oxides and volatile organic carbons react with the sunlight tom form harmful secondary pollutants such as ozone and peroxyacyl nitrates. Photochemical smog is more prevalent in sunnier countries as there is more UV light
Photochemical smog stays at ground level due to temperature inversion, it can cause many illnesses such as asthma
Air quality is significantly worse in urban areas due to urban activities which cause particulates to stay in the air
vehicle exhausts produce carbon dioxide, carbon monoxide, nitrous oxides and particulate matter
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construction work is more prevalent in cities which agitate course particulates that are then suspended in the air
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