Mitigating Urban Heat Island Effect in Open Spaces Quiz

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What is the expected increase in urban temperatures due to the urban heat island effect?

Up to 8°C (correct)

Up to 5°C

Up to 2°C

Up to 10°C

How much can the tree canopy be increased by in public spaces without compromising their functionality?

20%

30% (correct)

50%

40%

What is a key aspect of having thermally comfortable urban microclimates?

Healthy and vibrant public spaces (correct)

Warmer climates

Increased concrete structures

Lack of greenery

Why is it crucial to understand the possibilities for transforming existing urban fabrics?

Towards a more liveable and sustainable future Signup and view all the answers

What role can landscape transformation play in existing urban spaces, according to the text?

Implementing a more sustainable future Signup and view all the answers

How much cooler can urban climates become by increasing tree canopy in public spaces?

Up to 2°C Signup and view all the answers

How does tree canopy coverage impact the urban heat island effect?

Decreases the air temperature in the urban canopy layer through shading and evapotranspiration Signup and view all the answers

What effect does the aspect ratio (height to width) of open spaces have on the urban canopy layer?

Affects heat accumulation in the canopy layer Signup and view all the answers

Which factor contributes to the formation of a warm air dome over built-up areas?

Land cover materials like grass cover and water Signup and view all the answers

Why does the height of the warm air dome over urban surfaces increase during midnight?

When hotter air rises to higher altitudes at night Signup and view all the answers

How does the geometry of open spaces impact heat accumulation in the urban canopy layer?

Affects convective mixing of emitted heat in the canopy layer Signup and view all the answers

Which factor plays a role in shaping a dome of warm air over urban areas?

Blending effect of local air above the canopy layer Signup and view all the answers

What does the research mentioned in the text suggest about the impact of tree canopy coverage on urban heat?

Higher tree canopy coverage in parklands effectively mitigates urban heat in the CBD. Signup and view all the answers

How does the cooling effect of urban greenery vary throughout the day based on the text?

The cooling effect is more significant immediately after sunset. Signup and view all the answers

What is the relationship between tree canopy ratio and urban surface temperature according to previous studies mentioned in the text?

There is a strong negative correlation between tree canopy ratio and urban surface temperature. Signup and view all the answers

How does tree canopy coverage in Adelaide CBD parklands compare to inner suburban areas according to Table 4?

Higher tree canopy coverage in Adelaide CBD parklands compared to inner suburban areas. Signup and view all the answers

What happens to the relative cooling effect of parkland during the night as discussed in the text?

The relative cooling effect decreases as night progresses, diminishing by midnight. Signup and view all the answers

According to Figure 6, when is the cooling effect of urban greenery most significant?

Late afternoon, immediately after sunset Signup and view all the answers