Urban climate：练习题

Why do urban areas typically experience the Urban Heat Island (UHI) effect most intensely during the night?

Which specific conditions are required for the formation of photochemical smog in a major city?

Which phenomenon describes the increase in wind speed as air is forced through narrow gaps between tall urban buildings?

Explain the role of particulate pollution in increasing the frequency of thunderstorms in urban areas.

Analyze how urban structures and layout contribute to the formation of the canyon effect in wind patterns.

Urban climate
(a) Describe the 'Urban Heat Island' (UHI) effect and identify two physical factors that contribute to higher temperatures in city centers compared to rural surroundings.
(b) Explain how the layout of urban structures affects local wind speed and direction.