Wong Nyuk Hien and Steve Kardinal Jusuf
Published in: Landscape and Urban Planning Volume 84, Issue 2, 6 February 2008, Pages 166-182
Abstract:
In the previous study, it was found that urban heat island intensity in National University of Singapore (NUS) campus as high as 4oC at around 13:00. It is also concluded that the presence of dense greenery in NUS environment is very important in keeping low ambient temperature.
National University of Singapore has announced its new master plan in 2005, entitled NUS Master Plan 2005. Many new buildings will be built and in some areas existing greenery will be removed. Geographical Information System (GIS) was use to evaluate the greenery condition. It was found that the greenery rate of NUS Master Plan 2005 will drop by about 3% from 55.10% of NUS current condition to 52.31%. In order to have a sustainable environment, the greenery condition should be at least maintain at the same rate or even make it better.
For this purpose, potential of increasing greenery area by rooftop greenery application was also done. The target is to maintain the green rate of different zones at the same rate with current condition. In total, there will be more than 56% new buildings in NUS Master Plan 2005. Therefore, there is a good opportunity to plan and introduce the rooftop greenery or vertical greenery since in the early design stage
The ENVI-Met simulation predicts that the ambient temperature in NUS environment will increase about 1oC when NUS Master Plan 2005 is completed. It is due to the reduction of greenery rate.
Keywords: NUS Campus, GIS, master plan evaluation, potential of rooftop greenery, ENVI-Met simulation, temperature prediction.
Monday, July 23, 2007
Monday, June 4, 2007
The influence of land use on the urban heat island in Singapore
Published in Habitat International 31 (2007) 232–242
Steve Kardinal Jusuf, N.H. Wong, Emlyn Hagen, Roni Anggoro, Yan Hong
Abstract:
The urban air temperature is gradually rising in all cities in the world. One of the possible causes is the drastic reduction in the greenery area in cities. It means that land use planning becomes critical in determining the environment quality. This study tries to investigate and identify land use types which have the most influence to the increase of ambient temperature in Singapore. The main tools are remote sensing data and geographical information system (GIS) to obtain a macro view of Singapore and carry out comprehensive analysis at the same time. The data were analyzed by utilizing both qualitative and quantitative methods.
Both the qualitative and quantitative analysis results show that the land usage will influence urban temperature. In the daytime, the order of surface temperature in different land use types is industrial, commercial, airport, residential, and park respectively. However, during the night time, the order is commercial, residential, park, industrial, and airport. Therefore, with appropriate land use planning, the urban heat island (UHI) could be mitigated.
Keywords:
Influence; Land use; Urban heat island; Temperature; Singapore; GIS; Remote sensing
Steve Kardinal Jusuf, N.H. Wong, Emlyn Hagen, Roni Anggoro, Yan Hong
Abstract:
The urban air temperature is gradually rising in all cities in the world. One of the possible causes is the drastic reduction in the greenery area in cities. It means that land use planning becomes critical in determining the environment quality. This study tries to investigate and identify land use types which have the most influence to the increase of ambient temperature in Singapore. The main tools are remote sensing data and geographical information system (GIS) to obtain a macro view of Singapore and carry out comprehensive analysis at the same time. The data were analyzed by utilizing both qualitative and quantitative methods.
Both the qualitative and quantitative analysis results show that the land usage will influence urban temperature. In the daytime, the order of surface temperature in different land use types is industrial, commercial, airport, residential, and park respectively. However, during the night time, the order is commercial, residential, park, industrial, and airport. Therefore, with appropriate land use planning, the urban heat island (UHI) could be mitigated.
Keywords:
Influence; Land use; Urban heat island; Temperature; Singapore; GIS; Remote sensing
Tuesday, April 17, 2007
Study on Effect of Greenery in Campus Area
PLEA2006 - The 23rd Conference on Passive and Low Energy Architecture, Geneva, Switzerland, 6-8 September 2006
Steve Kardinal Jusuf, Wong Nyuk Hien, Aung Aung La Win, Htun Kyaw Thu, To Satya Negara, Wu Xuchao
ABSTRACT
Urban environment quality becomes worsen in every year. There is a fact that the urban air temperature is gradually raising in all cities and some effective measures are needed to mitigate it. Planting of vegetation is one of the main strategies to mitigate the Urban Heat Island (UHI) effect. Large urban parks can extend the positive effects to the surrounding built environment. National University of Singapore (NUS) complex can be considered as a “city” in a smaller scale. The greenery area along Kent Ridge Road seems like the “rural” area, with a cooler ambient temperature. Some methodologies were employed in this study, such as field measurement and computer simulations. Field measurement was used to get the real temperature distribution across the campus and finally, computer simulation was used to predict some scenarios of different conditions.
Visit: http://www.unige.ch/formcont/plea2006/geneva.html
Download: www.unige.ch/cuepe/html/plea2006/Vol1/PLEA2006_PAPER552.pdf
Steve Kardinal Jusuf, Wong Nyuk Hien, Aung Aung La Win, Htun Kyaw Thu, To Satya Negara, Wu Xuchao
ABSTRACT
Urban environment quality becomes worsen in every year. There is a fact that the urban air temperature is gradually raising in all cities and some effective measures are needed to mitigate it. Planting of vegetation is one of the main strategies to mitigate the Urban Heat Island (UHI) effect. Large urban parks can extend the positive effects to the surrounding built environment. National University of Singapore (NUS) complex can be considered as a “city” in a smaller scale. The greenery area along Kent Ridge Road seems like the “rural” area, with a cooler ambient temperature. Some methodologies were employed in this study, such as field measurement and computer simulations. Field measurement was used to get the real temperature distribution across the campus and finally, computer simulation was used to predict some scenarios of different conditions.
Visit: http://www.unige.ch/formcont/plea2006/geneva.html
Download: www.unige.ch/cuepe/html/plea2006/Vol1/PLEA2006_PAPER552.pdf
Environmental study of the impact of greenery in an institutional
Published in: Building and Environment 42 (2007) 2949–2970
N.H. Wong, Steve Kardinal Jusuf, Aung Aung La Win, Htun Kyaw Thu, To Syatia Negara, Wu Xuchao
ABSTRACTS
Urban environment quality is worsening every year. It is a fact that the urban air temperature is gradually rising in all cities and some effective measures are needed to mitigate it. Planting of vegetation is one of the main strategies to mitigate the urban heat island (UHI) effect. Large urban parks can extend positive effects to the surrounding built environment. National University of Singapore (NUS) complex can be considered as a ‘‘city’’ on a smaller scale. The greenery along Kent Ridge Road seems like a ‘‘rural’’ area, with a cooler ambient temperature. Some methodologies were employed in this study, such as satellite image, field measurement and computer simulations. The satellite image was used to identify the ‘‘hot’’ and ‘‘cool’’ spots in NUS environment. Field measurement was used to get the real temperature distribution across the campus and finally, computer simulation was used to predict some scenarios of different conditions. The result shows that buildings near or surrounded by greenery have lower ambient temperature than the ones away from the greenery and it is an effective way to lower the ambient temperature. The TAS simulation results also show that a rooftop garden has the potential of cooling energy savings for NUS buildings.
N.H. Wong, Steve Kardinal Jusuf, Aung Aung La Win, Htun Kyaw Thu, To Syatia Negara, Wu Xuchao
ABSTRACTS
Urban environment quality is worsening every year. It is a fact that the urban air temperature is gradually rising in all cities and some effective measures are needed to mitigate it. Planting of vegetation is one of the main strategies to mitigate the urban heat island (UHI) effect. Large urban parks can extend positive effects to the surrounding built environment. National University of Singapore (NUS) complex can be considered as a ‘‘city’’ on a smaller scale. The greenery along Kent Ridge Road seems like a ‘‘rural’’ area, with a cooler ambient temperature. Some methodologies were employed in this study, such as satellite image, field measurement and computer simulations. The satellite image was used to identify the ‘‘hot’’ and ‘‘cool’’ spots in NUS environment. Field measurement was used to get the real temperature distribution across the campus and finally, computer simulation was used to predict some scenarios of different conditions. The result shows that buildings near or surrounded by greenery have lower ambient temperature than the ones away from the greenery and it is an effective way to lower the ambient temperature. The TAS simulation results also show that a rooftop garden has the potential of cooling energy savings for NUS buildings.
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