Impacts of urbanisation on the thermal behaviour of new built up environments: A scoping study of the urban heat island in Bahrain

Radhi, Hassan; Fikry, Fayze; Sharples, Steve

doi:10.1016/j.landurbplan.2013.01.013

Cited by 112 publications

(49 citation statements)

References 22 publications

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“…Water in the form of urban inland water bodies functions as an urban "sink", the water has a cooling effect on the hot air [37]. According to Slingerland [38] (p. VI) "It can be seen that water is a good mitigation measure, because DTS (Distributed Temperature Sensing) measurements show that a minimum of 14% of daily incoming solar energy is absorbed by surface water".…”

Section: Water Areas-a Pondmentioning

confidence: 99%

The Impact of Morphological Features on Summer Temperature Variations on the Example of Two Residential Neighborhoods in Ljubljana, Slovenia

et al. 2017

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Abstract:The study conducted in this paper is focused on a predominantly residential area of the City of Ljubljana-Koseze, which is characterized by generally favorable (bio)climatic conditions. Nonetheless, thermal satellite images showed that residential neighborhoods within the Koseze district display unexpected variations in summer temperatures. This observation called into question the benefits of existing bioclimatic features and indicated the need to investigate and compare two neighborhoods with similar urban parameters, with the aim to identify morphological differential characteristics impacting urban heat island (UHI) intensity. By applying the study methodology based on a literature review, surveys of key precedents, detailed mapping in two Koseze locations, in situ measurements, observations and recordings, thermal imagery, and the analyses of statistical data, as well as by defining the four main categories of morphological urban parameters-structure, cover, fabric and metabolism, it was concluded that both neighborhoods have common morphological elements mitigating the UHI effect. Additionally, it was found that the neighborhood with higher UHI intensity has several less favorable features, such as busier roads, larger surface of parking corridors, and the existence of underground parking space. The traffic as an element of urban morphology hence represents the main cause of differences among UHI levels in the two Koseze neighborhoods.

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Section: Water Areas-a Pondmentioning

confidence: 99%

The Impact of Morphological Features on Summer Temperature Variations on the Example of Two Residential Neighborhoods in Ljubljana, Slovenia

et al. 2017

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“…Advances in thermal remote sensing, geographical information systems (GIS), and statistical methods have enabled the research community to characterize and examine UHI versus landscape relationship. A great number of studies that deal with UHI analysis have been carried out, providing a significant feedback to policy makers and researchers (Quattrochi and Luvall, 1999;Yuan and Bauer, 2007;Rizwan et al, 2008;Junxiang et al, 2011;Kumar et al, 2012;Radhi et al, 2013;Myint et al, 2013;Zhou et al, 2014;Adams and Smith, 2014;Coseo and Larsen, 2014;Song et al, 2014;Chun and Guldmann, 2014;Rotem-Mindali et al, 2015;Kourtidis et al, 2015). Besides air temperature, LST derived from remote sensing data is unique source of information in order to define surface urban heat islands and it has been widely used as indicator for UHI research (Weng and Schubring, 2004;Weng, 2009;Imhoff et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Characterizing the relationship between land use land cover change and land surface temperature

Tran

Pla

Carmona

et al. 2017

ISPRS Journal of Photogrammetry and Remote Sensing

522

187

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Exploring changes in land use land cover (LULC) to understand the urban heat island (UHI) effect is valuable for both communities and local governments in cities in developing countries, where urbanization and industrialization often take place rapidly but where coherent planning and control policies have not been applied. This work aims at determining and analyzing the relationship between LULC change and land surface temperature (LST) patterns in the context of urbanization. We first explore the relationship between LST and vegetation, man-made features, and cropland using normalized vegetation, and built-up indices within each LULC type. Afterwards, we assess the impacts of LULC change and urbanization in UHI using hot spot analysis (Getis-Ord Gi* statistics) and urban landscape analysis. Finally, we propose a model applying non-parametric regression to estimate future urban climate patterns using predicted land cover and land use change. Results from this work provide an effective methodology for UHI characterization, showing that (a) LST depends on a nonlinear way of LULC types; (b) hotspot analysis using Getis Ord Gi* statistics allows to analyze the LST pattern change through time; (c) UHI is influenced by both urban landscape and urban development type; (d) LST pattern forecast and UHI effect examination can be done by the proposed model using nonlinear regression and simulated LULC change scenarios. We chose an inner city area of Hanoi as a case-study, a small and flat plain area where LULC change is significant due to urbanization and industrialization. The methodology presented in this paper can be broadly applied in other cities which exhibit a similar dynamic growth. Our findings can represent an useful tool for policy makers and the community awareness by providing a scientific basis for sustainable urban planning and management.

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“…Some factors at the meso-scale contribute to the development of an UHI, whereas other UHIs are related to natural factors, such as weather and location. Other factors are related to human activity, such as urban geometry and materials, anthropogenic heat flux and deforestation [16,17]. All of the aforementioned factors may induce varying amounts of energy in the interface between the atmosphere and the urban surface.…”

Section: Introductionmentioning

confidence: 99%

Radiation Balance of Urban Materials and Their Thermal Impact in Semi-Desert Region: Mexicali, México Study Case

et al. 2015

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Net radiation is an essential forcing of climate in the lower layers of Earth's atmosphere. In this paper, radiation balance is measured in clay soil and green grass, and is compared with three urban materials. These materials: asphalt, concrete and white painted elastomeric polystyrene roofing sheet are widely used in Mexicali, Baja California, México. This study was carried out during August of 2011, the hottest time of the year. The 24-hour average values of net radiation found were: 137.2 W·m −2 for asphalt, 119.1 for concrete, 104.6 for clay soil, 152 for green grass and 29.2 for the polystyrene insulation. The latter two types of materials are likely to be the most effective in reducing urban heat island effects. This variation in the radiation balance has widespread implications for human living conditions, as land cover change tends to be towards surfaces that have higher levels of net radiation.

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Impacts of urbanisation on the thermal behaviour of new built up environments: A scoping study of the urban heat island in Bahrain

Cited by 112 publications

References 22 publications

The Impact of Morphological Features on Summer Temperature Variations on the Example of Two Residential Neighborhoods in Ljubljana, Slovenia

The Impact of Morphological Features on Summer Temperature Variations on the Example of Two Residential Neighborhoods in Ljubljana, Slovenia

Characterizing the relationship between land use land cover change and land surface temperature

Radiation Balance of Urban Materials and Their Thermal Impact in Semi-Desert Region: Mexicali, México Study Case

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