NDLI: Urban surface temperature behaviour and heat island effect in a tropical planned city

Content Provider	Springer Nature Link
Author	Ahmed, Adeb Qaid Ossen, Dilshan Remaz Jamei, Elmira Manaf, rhashima Abd Said, Ismail Ahmad, Mohd Hamdan
Copyright Year	2014
Abstract	Putrajaya is a model city planned with concepts of a “city in the garden” and an “intelligent city” in the tropics. This study presents the behaviour of the surface temperature and the heat island effect of Putrajaya. Findings show that heat island intensity is 2 °C on average at nighttime and negligible at daytime. But high surface temperature values were recorded at the main boulevard due to direct solar radiation incident, street orientation in the direction of northeast and southwest and low building height-to-street width ratio. Buildings facing each other had cooling effect on surfaces during the morning and evening hours; conversely, they had a warming effect at noon. Clustered trees along the street are effective in reducing the surface temperature compared to scattered and isolated trees. Surface temperature of built up areas was highest at noon, while walls and sidewalks facing northwest were hottest later in the day. Walls and sidewalks that face northwest were warmer than those that face southeast. The surface temperatures of the horizontal street surfaces and of vertical façades are at acceptable levels relative to the surface temperature of similar surfaces in mature cities in subtropical, temperate and Mediterranean climates.
Starting Page	493
Ending Page	514
Page Count	22
File Format	PDF
ISSN	0177798X
Journal	Theoretical and Applied Climatology
Volume Number	119
Issue Number	3-4
e-ISSN	14344483
Language	English
Publisher	Springer Vienna
Publisher Date	2014-03-04
Publisher Place	Vienna
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Atmospheric Sciences Climatology Atmospheric Protection/Air Quality Control/Air Pollution Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution
Content Type	Text
Resource Type	Article
Subject	Atmospheric Science

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