Numerical study on the urbanisation of Putrajaya and its interaction with the local climate, over a decade

Morris, Kenobi Isima; Chan, Andy; Salleh, Siti Aekbal; Ooi, Maggie Chel Gee; Oozeer, Muhammad Yaasiin; Abakr, Yousif Abdalla

doi:10.1016/j.uclim.2016.02.001

Cited by 39 publications

(16 citation statements)

References 91 publications

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“…However, during the wet season this was reversed to 27 and 70% respectively, and the total was lower. In terms of land cover, Morris et al (2016b) confirmed that the pattern seen in both temperate and tropical cities is similar -i.e. H increases (and LE decreases) with increase in urban fraction.…”

Section: Nature Of Tropical Uhisupporting

confidence: 62%

“…Tropical examples of the application of these principles include Maringa, Brazil (Macedo & Maringa, 2011) and Putra Jaya, Malaysia (Moser, 2010). In the case of Putra Jaya, Morris et al (2016b) have found that the reduction in overheating due to the use of vegetation and water bodies were 0.04 and 0.02°C per km 2 of vegetation and waterbody respectively. Overall, the garden city approach contributed to approx.…”

Section: Garden Citiesmentioning

confidence: 99%

“…Overall, the garden city approach contributed to approx. 0.5 o C cooling over Putrajaya City (Morris et al, 2016b). The drawback of this concept is that the extent of soft area (un-built) required is substantial and may not be viable for tropical cities with chronic land scarcity.…”

Section: Garden Citiesmentioning

confidence: 99%

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The impact of urban compactness, comfort strategies and energy consumption on tropical urban heat island intensity: A review

Giridharan

Emmanuel

2018

Sustainable Cities and Society

148

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Although studies on tropical UHIs remain numerically inferior to temperate UHI studies, there appears to be a considerably rich and diverse knowledge base built upon in the recent past  While the effect of greenery is important in lowering a tropical UHI, the cooling effect is modulated by wetness.  The lack of standardisation on the characterisation of parameters pose problems in deciphering the overall effect of compactness on tropical UHIs  Relationship between energy and UHI in tropics, especially in the residential sector is not very well captured.  Local Climate Zone' (LCZ) is a promising approach for the classification of measurement locations by their key micro-climate influencing features.

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Section: Nature Of Tropical Uhisupporting

confidence: 62%

Section: Garden Citiesmentioning

confidence: 99%

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The impact of urban compactness, comfort strategies and energy consumption on tropical urban heat island intensity: A review

Giridharan

Emmanuel

2018

Sustainable Cities and Society

148

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“…It was also stated that, the magnitude of UHI can be influenced by the ratio of green land coverage. In another attempt, Morris, K. I., et al (Morris, et al, 2016) investigated the chronological local urban climate alterations occurred over a decade (1999)(2000)(2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008)(2009)(2010)(2011) of urbanization through utilizing the NCAR WRF model coupled with a numerically proven land surface and urban canopy model (NOAH LSM/UCM). LANDSAT images were also used to acquire up-to-date and precise land cover dataset of the region implemented for each year.…”

Section: Kuala Lumpurmentioning

confidence: 99%

Urban heat island mitigation strategies: A state-of-the-art review on Kuala Lumpur, Singapore and Hong Kong

Aflaki

Mirnezhad

Ghaffarianhoseini

et al. 2017

Cities

278

120

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Observing the rapid urban expansions and numerous infrastructure developments in the East-Asian context, many cities are suffering the urban heat island (UHI) effect and its associated environmental and social challenges. Moreover, the lack of sufficient attention to the application of effective heat mitigation strategies in current urban development in these cities can drastically intensify the eventual impacts of UHI. Therefore, many governmental sectors and policy makers have been implementing operative solutions for cooling cities. Nevertheless, this study argues that in Kuala Lumpur, despite the growing attention to this matter, there is still a need for more rigorous consideration by the architecture, engineering and construction (AEC) professionals as well as more scholarly studies to reflect sustainable solutions to the UHI effect. As a result, today, some of the dense urban areas in Kuala Lumpur are characterized with the use of thermally massive building materials, urban surfaces with low albedo, complex urban morphology, waste heat, and low density of vegetation. On the other hand, recent studies demonstrate that there has been a rapidly increasing interest in studies related to UHI in other East Asian regions such as Singapore and Hong Kong. Hence, this study develops a comparative analysis to provide a state-of-the-art review of the recent attempts towards mitigating the UHI effect in Kuala Lumpur, Singapore, and Hong Kong. Among several available UHI mitigation strategies, this study is limited to the analysis of the environmental impacts of urban vegetation (green roofs, green facades, vertical greeneries and green pavements). Findings reveal that in general, urban greening can significantly mitigate the UHI intensity, both directly and indirectly, resulting in the decrease of global air temperature and mean radiant temperature up to 4 ˚C and 4.5 ˚C respectively. Overall, the study develops new practical guidelines, discusses the public benefits and elaborates on the future directions of UHI studies.

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“…Lu et al (2017) used entropy weight method, coupled coordination degree model and method of GIS technology to show that the urbanization pattern of Wanjiang urban belt is consistent with the distribution of climate bearing capacity. Morris et al (2016) used the NCAR weather and research forecast (WRF) model, combined with the surface and urban canopy model (NOAH LSM/UCM), to investigate the local urban climate change during the decade of urbanization (1999)(2000)(2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008)(2009)(2010)(2011). The results showed that the Urbanization of Putrajaya has induced a daily prevailing urban heat island intensity of ∼2.1°C.…”

Section: Literature Reviewmentioning

confidence: 99%

The Coupling Coordinated Relationship Between New-type Urbanization, Eco-Environment and its Driving Mechanism: A Case of Guanzhong, China

Dong

Shang

Ali

et al. 2021

Front. Environ. Sci.

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As an important platform for participating in international competition and cooperation, supporting economic growth and promoting coordinated regional development, urban agglomeration plays an important role in China’s economic, social and urbanization development. At this time, the Guanzhong Plain urban agglomeration (GZPUA), as the second largest urban agglomeration in western China, has a moderate population density. The high demand and high input of resources for population growth make the regional ecological destruction and environmental pollution more prominent. Therefore, it is of great practical significance to study the coordinated development of urbanization and ecological environment in GZPUA. By using the panel data of the GZPUA of China between 2008 and 2017, this study constructed evaluation index system of new-type urbanization and ecological environment quality and calculated the weights of the indices within the evaluation system via the improved entropy weight method, finally determined the new-type urbanization and ecological environment quality of each city. Then the coupling coordination degree model was used to analyze the coupling coordination relationship between two systems of GZPUA and their coupling stages and levels. In addition, the driving mechanism of their coordination degree was explored by using geographic detector method. The results show that: 1) The GZPUA new-type urbanization quality is characterized by both slow growth except Xi’an by a rapid increase. The ecological environment quality is characterized by both slow growth and fluctuations, except Qingyang by a decrease. There are spatial differences between the quality of new-type urbanization and the quality of ecological environment. 2) The 11 cities can be divided into high-high type (Xi’an), high-low type (Xianyang, Yuncheng, Linfen), low-low type (Pingliang, Weinan), and low-high type (Shangluo, Tianshui, Qingyang), different types should take different development paths. 3) The coordination degree between urbanization and ecological environment quality in GZPUA showed an upward trend, and formed a spatial distribution pattern with Xi’an as the core and decreasing to the outer circle cities, with regional differences. 4) The coordinated development of new-type urbanization and ecological environment is a process in which various driving factors act on different driving forces. These driving forces can be summarized as market driving force, endogenous driving force, outward driving force and administrative driving force. Based on the current situation of coordinated development of new-type urbanization and ecological environment in the GZPUA, it is recommended to promote the coordinated development of urbanization and ecological environment according to local conditions, strengthen the urbanization market mechanism, and optimize the industrial layout. Further, guide the flow of various factors across regions, strengthen technological innovation on the basis of breaking regional divisions, narrow the gap between urban and rural areas, establish the concept of coordinated development, and give play to the government’s “visible hand” role.

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Numerical study on the urbanisation of Putrajaya and its interaction with the local climate, over a decade

Cited by 39 publications

References 91 publications

The impact of urban compactness, comfort strategies and energy consumption on tropical urban heat island intensity: A review

The impact of urban compactness, comfort strategies and energy consumption on tropical urban heat island intensity: A review

Urban heat island mitigation strategies: A state-of-the-art review on Kuala Lumpur, Singapore and Hong Kong

The Coupling Coordinated Relationship Between New-type Urbanization, Eco-Environment and its Driving Mechanism: A Case of Guanzhong, China

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