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Title: Mapping Singapore’s Urban Heat Vulnerability: An Initial Study
Authors: Pang Yuhui Pearlyn
Keywords: Urban Heat Vulnerability (UHV), Heat Vulnerability Index (HVI), Geographical Information Systems (GIS), Urban Heat Island effects (UHI), Daytime and Nocturnal UHV, Tropics, Intra-urban Singapore Planning Boundaries
Issue Date: 2016
Citation: Pang Yuhui Pearlyn (2016). Mapping Singapore’s Urban Heat Vulnerability: An Initial Study. ScholarBank@NUS Repository.
Abstract: Urban heat vulnerability (UHV) literature has been rapidly building up in recent years; however, to date, there has not been a UHV study conducted in the tropics. The tropics is reportedly highlighted as the region most vulnerable to climate change, where dense urban populations congregate in coastal cities and where the highest temperature and humidity levels are expected. In view of the accelerating changes in climate, coupled with intense urbanization that produce “extra” heat via urban heat island (UHI) effects, there is an urgent need to develop a standardized heat vulnerability index (HVI) for the tropics. In this thesis, adopting Singapore as a case study, a HVI is generated for an intra-urban UHV assessment. An inductive approach was adopted to determine a total of ten measures indicating biophysical and social vulnerability across Singapore’s planning boundaries in 2010. The indicators are subject to equal weighting and normalization and utilize geospatial techniques, specifically Geographical Information Systems (GIS), to present and analyse results. The results of daytime and nocturnal UHV reveal that across the seasons inter-monsoonal period yield highest vulnerability. Spatially, UHV hotspots are generally located at central to east Singapore. These hotspots have moderate to high physical exposure that co-occur vulnerable populations who are aged and/or lack social integration. A heightened nocturnal vulnerability was also observed. In order to move forward with new sustainable developments, present adaptation and mitigation options are evaluated. Lastly, the transferability of HVI to the region and limitations are discussed. Ultimately, through a justified process of UHV assessment, this thesis intends to bridge science and policy by aiding decision-making under a minimized degree of uncertainty.
Appears in Collections:Bachelor's Theses (Restricted)

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