Geoscience Reference
In-Depth Information
significantly reduce the surface temperature within the built-up area. Different tree
type and density of vegetation could have different effects in reducing surface
temperature in urban areas. The cross section profile at Subang Ria Recreational
Park is shown in Fig.
8
c. The transect line crossed different types of land use (i.e.
residential, vegetation, built-up, urban park-water body and trees). It is clear that
water body also could be another variable besides vegetation that can help low-
ering the surface radiant temperature of the surrounding area.
5 Conclusion and Recommendation
This initial study has shown that there have been a significant increase in the built-
up areas within the District of Petaling over the period of 18 years. This has
resulted in higher LST especially in the built-up areas as compared to the vege-
tated areas. Vegetation and water bodies have significant influence on the sur-
rounding surface temperature. Although urbanization significantly increase the
LST, the initiative taken by the Shah Alam City Council, Petaling Jaya City
Council and Subang Jaya Municipal Council to plant more trees to help mitigate
the UHI effects within the developed urban area. A comprehensive ground
observation work is still required to validate the results obtained from satellite
images.
Acknowledgments The authors would like thank the Malaysian Remote Sensing Agency
(ARSM) and Department of Survey and Mapping Malaysia (JUPEM), for providing necessary
data for this study. Many thanks also go to the Licensed Land Surveyors Board for their financial
support in completing this study.
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