Geography A-Level
Urban canyons
What Urban canyons means in Geography A-Level, as defined for AQA.
Definition of Urban canyons
Check what you remember
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Reference: AQA
Channel winds to increase localised speed and alter direction, though overall surface roughness reduces average wind speed.
Topics that use Urban canyons
- Urban climate (AQA A-Level)
Related terms
- Congestion charging
- Modal shifts
- Particulate pollution
- Pollution reduction policies
- Transboundary nature of air pollution
- Photo-chemical smog
- Urban heat island effect
Using Urban canyons in the exam
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