Abstract
Assessing the Impact of Wind Conditions on Urban Heat Islands in Large Australian Cities
Highlights
Urban Heat Islands (UHIs), where urban areas are warmer than the surrounding rural areas, are a common and growing phenomenon in cities
Regression analyses were used to derive the relationships between UHI intensity as well as wind speed and wind direction over the entire data set
This study pioneers a new method of investigating the links between wind speed and direction and UHI intensity by combining wind roses and polar plots embedded with UHI intensity data
Summary
Urban Heat Islands (UHIs), where urban areas are warmer than the surrounding rural areas, are a common and growing phenomenon in cities. These features are a direct consequence of urbanisation, which removes natural vegetation and water bodies, and replaces them with low albedo impervious surfaces. In Melbourne, it is known that the heat-related hospital callouts increase significantly when temperatures exceed 30°C. This will occur much more frequently in urban areas on account of UHIs than it would have under natural conditions. One major contributor to the heat related illnesses and hospital visits is the heat that does not dissipate at night (Kenney et al, 2014)
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