Diurnal contrast of urban park cooling effects in a “Furnace city” using multi-source geospatial data and optimal parameters-based geographical detector model
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引用次数: 0
Abstract
Urban parks serve as key nature-based solutions to alleviate the urban heat island phenomenon. Studies have examined park cooling effects (PCEs) from various perspectives. However, the diurnal impacts of environmental factors and their contributions to PCEs, specifically the cooling indicators that comprehensively characterize PCEs, are not well understood. To fill the gap, we constructed a new PCE index, park cooling composite index, based on principal components analysis and six cooling indicators. We selected 68 parks to explore the diurnal variations of PCEs in a “furnace city” using multi-source geospatial data and an optimal parameters-based geographical detector (OPGD) model. PCEs were not affected by park spatial distribution, and urban parks typically exhibited enhanced PCEs in daytime. Correlations between environmental factors and PCEs varied diurnally, with variations among PCEs. Park area and park perimeter were significantly correlated with all PCEs at nighttime. The OPGD revealed that the majority of the internal and external interactive factors of parks enhanced PCEs, regardless of the time. Additionally, balancing strategies for daytime and nighttime PCEs of different park types were developed. These findings provide a comprehensive understanding of the daily variations in PCEs, aiding in the design and planning of parks to adapt to extreme heat.
期刊介绍：
Sustainable Cities and Society (SCS) is an international journal that focuses on fundamental and applied research to promote environmentally sustainable and socially resilient cities. The journal welcomes cross-cutting, multi-disciplinary research in various areas, including:
1. Smart cities and resilient environments;
2. Alternative/clean energy sources, energy distribution, distributed energy generation, and energy demand reduction/management;
3. Monitoring and improving air quality in built environment and cities (e.g., healthy built environment and air quality management);
4. Energy efficient, low/zero carbon, and green buildings/communities;
5. Climate change mitigation and adaptation in urban environments;
6. Green infrastructure and BMPs;
7. Environmental Footprint accounting and management;
8. Urban agriculture and forestry;
9. ICT, smart grid and intelligent infrastructure;
10. Urban design/planning, regulations, legislation, certification, economics, and policy;
11. Social aspects, impacts and resiliency of cities;
12. Behavior monitoring, analysis and change within urban communities;
13. Health monitoring and improvement;
14. Nexus issues related to sustainable cities and societies;
15. Smart city governance;
16. Decision Support Systems for trade-off and uncertainty analysis for improved management of cities and society;
17. Big data, machine learning, and artificial intelligence applications and case studies;
18. Critical infrastructure protection, including security, privacy, forensics, and reliability issues of cyber-physical systems.
19. Water footprint reduction and urban water distribution, harvesting, treatment, reuse and management;
20. Waste reduction and recycling;
21. Wastewater collection, treatment and recycling;
22. Smart, clean and healthy transportation systems and infrastructure;
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