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Hien, Wong Nyuk; Yu, Chen. Study of urban heat island in Singapore. In: CONFERENCE ON PASSIVE AND LOW ENERGY ARCHITECTURE, 20., 2003, Santiago do Chile. Anais... Santiago do Chile, 2003.
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Abstract

With rapid urbanization, there has been a tremendous growth in population and buildings in cities. Urban Heat Island (UHI) effect is triggered by the densely built environment in the form of higher temperatures experienced in cities. Issues related to energy use for cooling and air pollution are raised. Green areas are the ecological solution to the concrete jungle. Vegetation can counteract UHI through shading and evapotranspirational cooling. It is an effective measure to create “oasis effect” and mitigate urban warming at both macro- and micro-scales. Singapore has been developed under the high-rise and high density housing strategy. On the other hand, it is also a garden city where development intensification is well balanced with nurtured landscaping. To explore the occurrence of UHI effect and the role of vegetation on mitigating the UHI effect in this tropical city, a series of studies were carried out. This paper presents some of the findings derived from a mobile survey and field measurements. The aim is to analyze the severity of UHI effect and cooling impacts of large green areas at macro-level. Islandwide temperature distribution is mapped and it indicates a strong correlation between the decrease of temperature and the appearance of large green areas in the city. Although there is no distinct borderline between ‘urban’ and ‘rural’ areas in Singapore, maximum temperature difference of 4.01ºC is observed.
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