AS Geography - Urban Climates

What is the primary reason for the relative lack of moisture in urban areas?

• Dense vegetation

• Low drainage density

• High drainage density

• Abundant snowfall

Why do urban areas often experience higher nighttime temperatures compared to non-urban areas?

• Reduced human activities

• Buildings releasing less heat

• Increased industrial haze

• Buildings releasing heat

How do tall buildings impact radiation in urban areas?

• Scatter longwave radiation

• Increase visibility

• Absorb shortwave radiation

• Enhance temperature contrasts

What contributes to the heightened intensity of storms in urban areas during hot summer evenings and nights?

• Low instability

• High drainage density

• Greater evapotranspiration

• Greater instability

What contributes to the higher daytime temperatures in urban climates, on average, by 0.6 °C?

• Decreased heating from people

• Increased snowfall

• Enhanced evapotranspiration

• Higher energy availability for heating the atmosphere

What is the primary cause of Urban Heat Islands (UHIs)?

• Increased vegetation

• Low population density

• Higher levels of concrete and asphalt

• Reduced industrial activities

How does the heat in Urban Heat Islands differ from surrounding rural areas?

• It is higher due to increased human activities

• It is lower due to green spaces

• It is unaffected by urban structures

• It is similar to rural areas

How can the urban heat island effect be mitigated? Tick the correct answers

• Increasing impervious surfaces

• Afforestation in urban areas

• Implementing cool roof technologies

• Encouraging high-density construction

Sometimes buildings can trap pollutants leading to a reduction in air quality at ground level in built up areas. This is due to what?

• Venturi effect

• Hadley Cell

• Urban Climate

• Canyon effect

Wind tunnelling due to a reduction in width of passage between buildings can increase wind velocities this is down to what?

• Hadley Cell

• Ferrel Cell

• Venturi effect

• Hygroscopic particles