Urban Climate Quiz

What is the Venturi Effect?

• The squeezing of wind into an increasingly narrow gap resulting in pressure and velocity increase

• The slowing down of wind due to high rise buildings

• The redirection of wind down long, straight streets with less friction

• The increase in wind speed with height above ground

What is the major concern for tall buildings in terms of wind stress?

• Turbulence eddy around them

• Wind funnelled between buildings

• Faster high-level wind deflected to street level

• Wind vortexes pulling the building from side to side

What is the purpose of the softened edges of the Burj Khalifa building?

• To increase cloud formation

• To redirect wind down long, straight streets

• To prevent the formation of whirlpools or vortices

• To increase wind speed around the structure

What is the reason for increased thunderstorms in urban areas?

• Less friction in long, straight streets

• Reduced chemical emissions from cars and industrial facilities

• Decreased evaporation due to urban heat island effect

• Low pressure drawing up moist air and increasing cloud formation

How do urban areas influence the atmosphere in terms of heat production?

• By absorbing the Sun's rays and producing cold

• By trapping sunshine and creating more heat

• By reducing the number of particles in city air

• By decreasing the amount of precipitation downwind of the city

What is the reason for fog formation in urban areas?

• Increased evaporation due to urban heat island effect

• Reduced industrialization and car emissions

• Decreased number of particles in city air

• Increased number of particles in city air acting as condensation nuclei

What is the effect of warm air rising from a city colliding with moist air from a nearby body of water?

• It decreases cloud formation

• It reduces the number of thunderstorms

• It increases wind speed

• It releases precipitation downwind of the city