Empirical evidence on the impact of urban overheating on building cooling and heating energy consumption

Su, Mi Aye; Ngarambe, Jack; Santamouris, Mat; Yun, Geun Young

doi:10.1016/j.isci.2021.102495

Cited by 50 publications

(16 citation statements)

References 34 publications

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“…Thus, based on the previous studies, it is well documented that socioeconomic, environmental, and spatial forms largely influence thermal patterns in an urban environment. Therefore, urgent action needs to be taken to ensure the sustainability of urban environmental development [ 72 , 73 ]. A continuous increase in LST ultimately leads to the emergence of UHI effects [ 74 , 75 ] Therefore, city planners and policy makers must adopt technical and nature-based solutions (NBS), such as innovative urban landscape planning and adoption strategies related to green infrastructure, to mitigate the effects of UHIs.…”

Section: Discussionmentioning

confidence: 99%

Understanding the Relationship between Urban Biophysical Composition and Land Surface Temperature in a Hot Desert Megacity (Saudi Arabia)

Addas

2023

IJERPH

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The deteriorations of the thermal environment due to extreme land surface temperature (LST) has become one of the most serious environmental problems in urban areas. The spatial distribution of urban biophysical composition (UBC) has a significant impact on the LST. Therefore, it is essential to understand the relationship between LST and biophysical physical composition (BPC) to mitigate the effects of UHIs. In this study, an attempt was made to understand the relationship between LST and BPC in a hot desert coastal megacity (Jeddah megacity) in Saudi Arabia. Principal component analysis (PCA) was used to understand the factors affecting LST based on remote sensing indices. Correlation and regression analyses were carried out to understand the relationship between LST and BPC and the impact of BPC on LST. The results showed that, in Jeddah city from 2000 to 2021, there was a substantial increase in the built-up area, which increased from 3085 to 5557.98 hectares. Impervious surfaces had a significant impact on the LST, and green infrastructure (GI) was negatively correlated with LST. Based on the PCA results, we found that the GI was a significant factor affecting the LST in Jeddah megacity. The findings of this study, though not contributing to further understanding of the impact of BPC on LST, will provide planners and policy makers with a foundation for developing very effective strategies to improve the eco-environmental quality of Jeddah megacity.

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Section: Discussionmentioning

confidence: 99%

Understanding the Relationship between Urban Biophysical Composition and Land Surface Temperature in a Hot Desert Megacity (Saudi Arabia)

Addas

2023

IJERPH

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“…The thermal balance of urban areas is significantly influenced by the choice of materials used in the built environment, such as the exterior envelopes of buildings and other open urban surfaces [1,2]. Due to the absorption of the incident solar radiation, the closely packed buildings and paved surfaces that make up our cities trap and amplify heat, exhibiting a high surface temperature and a high release of sensible heat to the atmosphere, increasing the Urban Heat Island (UHI) phenomenon [3,4].…”

Section: Introductionmentioning

confidence: 99%

Investigating the relationship between surface roughness and reflectance properties of building materials

Marchini,

Chiatti,

Fabiani

et al. 2024

J. Phys.: Conf. Ser.

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Materials used in the exterior envelope of buildings and open urban surfaces, in general, strongly affect the urban thermal balance, determining the general magnitude of urban overheating. The surface temperature of reflective materials varies as a function of physical and geometrical properties. Quantifying the influence of surface roughness on reflectance properties has crucial relevance since reflectance can significantly affect the reduction of the absorbed solar radiation and, in turn, the energy demand for cooling. Through an experimental and statistical investigation, this research aims to analytically assess the impact of surface roughness on the reflectance and thermal performances of building materials and, in turn, the role that roughness could play towards urban cooling and mitigation. Results show that the surface’s different roughness affects the sample’s reflectance coefficient, leaving it basically unchanged in the Ultraviolet and Visible ranges but with appreciable differences in the Near-Infrared wavelengths. This outcome confirms the correlation between the surface roughness and the optical and thermal characteristics of the building materials, making evident the importance of the study of superficial topography towards the mitigation of Urban Heat Island phenomena.

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“…Urban development changes the energy balance in peri-urban areas, which typically have higher air and surface temperatures than their surrounding rural areas. 1 , 2 These well-known urban heat island effects (UHIs) can significantly affect the local climate 1 and aggravate heat stress, 3 , 4 , 5 with negative impacts on energy consumption 6 , 7 and air pollution. 8 , 9 , 10 UHIs are also a threat to human health, and a warming environment will increase the risk of morbidity and mortality, 3 , 11 especially when synergistic interactions with heat waves occur.…”

Section: Introductionmentioning

confidence: 99%

Different explanations for surface and canopy urban heat island effects in relation to background climate

Yang,

Li,

et al. 2024

iScience

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Empirical evidence on the impact of urban overheating on building cooling and heating energy consumption

Cited by 50 publications

References 34 publications

Understanding the Relationship between Urban Biophysical Composition and Land Surface Temperature in a Hot Desert Megacity (Saudi Arabia)

Understanding the Relationship between Urban Biophysical Composition and Land Surface Temperature in a Hot Desert Megacity (Saudi Arabia)

Investigating the relationship between surface roughness and reflectance properties of building materials

Different explanations for surface and canopy urban heat island effects in relation to background climate

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