Impact of Urban Overheating and Heat-Related Mortality in Hong Kong

Hua, Junyi; Shi, Yuan; Ren, Chao; Lau, Kevin Ka-Lun; Ng, Edward

doi:10.1007/978-981-19-4707-0_14

Cited by 2 publications

(2 citation statements)

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“…Typically, urban areas with a higher density of buildings tend to have poorer ventilation conditions and experience a more pronounced Urban Heat Island (UHI) effect [9,10]. Studies in some high-density urban regions show that up to 5 • C UHI intensity can be detected [11], which creates threats to both citizens' health and well-being (such as extreme heat-related mortality) [12,13]. In the summer of 2022, nearly 62,000 people died from record-breaking heat in Europe [14].…”

Section: Introduction 1backgroundmentioning

confidence: 99%

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The Design of Façade-Integrated Vertical Greenery to Mitigate the Impacts of Extreme Weather: A Case Study from Hong Kong

Xiang,

Tao

2023

Buildings

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Vertical greenery not only helps to cool the surfaces of buildings but, more importantly, it can also mitigate the Urban Heat Island effect. The growth of vertical greenery is highly dependent on ongoing maintenance, such as irrigation. Wind-driven rain serves as a natural source of irrigation for vertical greenery. Wind-driven rain simulation was conducted on a typical high-density and high-rise case in Hong Kong to first classify the wind-driven rain harvesting potential on the façade with very high, high, moderate, low, and very low levels. Then, Scenario 1 (very high potential), Scenario 2 (very high + high potential), and Scenario 3 (very high + high + moderate potential) regarding vertical greenery in locations with three levels of wind-driven rain harvesting potential were simulated in ENVI-met to assess its Urban Heat Island mitigation effect. The maximum temperature reduction on the street occurs between 12 p.m. and 3 p.m., indicating the greatest mitigation of the Urban Heat Island effect. Scenario 1, Scenario 2, and Scenario 3 achieve a maximum temperature reduction of 0.76 °C, 0.88 °C, and 1.06 °C, respectively, during this time period.

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Section: Introduction 1backgroundmentioning

confidence: 99%

“…Buildings 2023, 13, x FOR PEER REVIEW 2 of 20 urban regions show that up to 5 °C UHI intensity can be detected [11], which creates threats to both citizens' health and well-being (such as extreme heat-related mortality) [12,13]. In the summer of 2022, nearly 62,000 people died from record-breaking heat in Europe [14].…”

Section: Introduction 1backgroundmentioning

confidence: 99%