The use of proportion varies in urban heat island mitigation strategies depending on the approach. Some strategies focus on proportionally increasing the amount of green space, such as parks, trees, and vegetated roofs, to create more shade and reduce the urban heat island effect. Other strategies focus on proportionally decreasing the amount of impervious surfaces, such as asphalt and concrete, to reduce the heat island effect caused by heat absorption and reflection.
Additionally, some mitigation strategies involve changing the proportion of surface reflectivity and emissivity to reduce the urban heat island. For example, increasing the proportion of white or reflective surfaces, such as cool roofs and pavements, can reflect sunlight and reduce heat absorption. Similarly, increasing the proportion of surfaces with high emissivity, such as green roofs and cool pavements, can increase heat dissipation and reduce surface temperatures.
Overall, the use of proportion in urban heat island mitigation strategies varies depending on the specific approach and desired outcome.
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