Urban ventilation corridors and spatiotemporal divergence patterns of urban heat island intensity: a local climate zone perspective

被引:0
作者
Zhipeng Shi
Jun Yang
Yuqing Zhang
Xiangming Xiao
Jianhong Cecilia Xia
机构
[1] Liaoning Normal University,Human Settlements Research Center
[2] Jangho Architecture College,Department of Microbiology and Plant Biology, Center for Earth Observation and Modeling
[3] Northeastern University,School of Earth and Planetary Sciences (EPS)
[4] University of Oklahoma,undefined
[5] Curtin University,undefined
来源
Environmental Science and Pollution Research | 2022年 / 29卷
关键词
Ventilation corridors; Local climate zones; Frontal area index; Urban heat island; Land surface temperature; Dalian City;
D O I
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中图分类号
学科分类号
摘要
Urban ventilation corridors introduce fresh air into urban interiors and improve urban livability, while mitigating the urban heat island (UHI) effect. However, few studies have assessed the impact of urban ventilation corridors on UHI intensity (UHII) from the perspective of the local climates of different cities. Therefore, this study integrated multisource data to construct ventilation corridors from the perspective of local climate zone (LCZ) and analyzed its impact on UHII. The results showed the following: (1) the average UHII of constructed LCZs was higher than that of natural LCZs, among which the building type LCZ10 (heavy industry) had the highest intensity (5.77 °C); (2) in extracted ventilation corridors, the pixel number of natural LCZs was substantially larger than that of constructed LCZs, among which LCZE (bare soil/paved) was the largest; and (3) for natural LCZs, the average UHII of each LCZ was lower within the ventilated corridors than within the non-ventilated corridors (except for LCZG [water]), with the UHII of LCZB (scattered trees) exhibiting the greatest mitigation effect. Quantitative research on the composition and function of ventilation corridors can not only assess the ability of ventilation corridors to mitigate UHIs, but also provide a reference for urban ventilation corridor planning.
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页码:74394 / 74406
页数:12
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