Optimizing the spatial pattern of the cold island to mitigate the urban heat island effect

Ecological Indicators, Год журнала: 2023, Номер 154, С. 110550 - 110550

Опубликована: Июнь 27, 2023

Numerous studies on reducing the urban heat island effect have concentrated isolated cold islands, analyzing their cooling impact in terms of size and shape. From an international perspective, shown that enhancing connectivity islands can enhance but they do not suggest specific processes ideas for connectivity. This study aims to investigate how connect optimize spatial pattern island. Therefore, a framework is constructed this study: source area - network. Firstly, core was identified by morphological analysis. Then, analysis applied identify sources. Afterward, minimum cumulative resistance model used construct In Nanjing, case point, results reveal total 27 areas 52 corridors been identified. 6 first-level CSAs situated northern suburbs Nanjing prevent spread effect. 2 second-level 18 third-level are scattered throughout improve climate. The 29 primary help mitigate transfer from city center. 23 secondary mainly located centers contributing preventing aggregating. be as strategic measure fragmentation isolation island, which provides implications further expansion

Язык: Английский

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Mitigation of urban heat island in China (2000–2020) through vegetation-induced cooling

Sustainable Cities and Society, Год журнала: 2024, Номер 112, С. 105599 - 105599

Опубликована: Июнь 13, 2024

Язык: Английский

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Assessing the differential impact of vegetated and built-up areas on heat exposure environment: A case study of Los Angeles

Building and Environment, Год журнала: 2025, Номер unknown, С. 112538 - 112538

Опубликована: Янв. 1, 2025

Язык: Английский

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A Data-Mining-Based Novel Approach to Analyze the Impact of the Characteristics of Urban Ventilation Corridors on Cooling Effect

Buildings, Год журнала: 2024, Номер 14(2), С. 348 - 348

Опубликована: Янв. 26, 2024

The appropriate design of urban ventilation corridors (VCs) can improve the thermal environment, thereby reducing energy consumption and promoting sustainable development. However, existing research lacks a comprehensive grasp characteristics VCs from multiple dimensions quantitative analysis its cooling effect. We propose novel approach based on data mining to comprehensively consider morphological environmental explore correlation between VC Selecting Nanjing as an example, index system was constructed, effect investigated, optimal range with different underlying surface types obtained. Results revealed that is closely related surface, leading temperature difference up 5.4 °C. vary 13 600 m. recommended parameter intervals for were determined. Finally, targeted strategies alleviate heat island proposed types. study output contributes VCs, which great significance in alleviating development cities.

Язык: Английский

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The cooling capacity of urban vegetation and its driving force under extreme hot weather: A comparative study between dry-hot and humid-hot cities

Building and Environment, Год журнала: 2024, Номер 263, С. 111901 - 111901

Опубликована: Июль 30, 2024

Язык: Английский

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Cooling effects in urban communities: Parsing green spaces and building shadows

Urban forestry & urban greening, Год журнала: 2024, Номер 94, С. 128264 - 128264

Опубликована: Фев. 23, 2024

Язык: Английский

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Urban vegetation cooling capacity was enhanced under rapid urbanization in China

Journal of Cleaner Production, Год журнала: 2023, Номер 425, С. 138906 - 138906

Опубликована: Сен. 22, 2023

Язык: Английский

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Contribution of urban trees in reducing land surface temperature: Evidence from china's major cities

International Journal of Applied Earth Observation and Geoinformation, Год журнала: 2023, Номер 125, С. 103570 - 103570

Опубликована: Ноя. 15, 2023

Urban trees mitigate urban heat by altering evapotranspiration processes and providing shade to their surrounding environment. Nevertheless, the impact through which three-dimensional tree characteristics alleviate Land Surface Temperature (LST) remain uncertain, especially for climatic zone differences. In this study, we investigated potential of LST in 35 Chinese major cities quantified importance diverse factors influencing magnitude cooling effects. Results showed that tree-covered areas was about 2.23 °C lower than built-up during summer, but an opposite temperature pattern observed winter these are mostly distributed Bs (arid-steppe) Dw (cold-dry winter) climate zones. Moreover, found every 1 m increase height, decreased ∼ 0.19 0.10 summer winter, respectively. Notably, also seasonal differences drivers intensity, with digital elevation model (DEM = ∼13.21 %) as key factor. These findings can help planners architects better understand effects cooling, be a significant guide reducing heat.

Язык: Английский

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Are grand tree planting initiatives meeting expectations in mitigating urban overheating during heat waves?

Sustainable Cities and Society, Год журнала: 2024, Номер 113, С. 105671 - 105671

Опубликована: Июль 15, 2024

Numerous cities undertakes substantial tree planting initiatives for heatwave mitigation, driven by model predictions indicating a positive mitigation impact. However, emerging studies suggest that the transpiration behavior of trees during heatwaves significantly deviates from normal. This divergence, overlooked in current climate models, introduces possibility inaccuracies predicting cooling heatwaves. In this research, 1) The universality changed heat wave is revealed: study over 700 various species indicates at least 65 % sampled overestimated conventional waves. 2) scheme within revised to represent new pattern. Comparison shows overestimates peak hour efficiency 60 %. Consequently, effectiveness large-scale tree-planting as strategy may not meet expectations, emphasizing need refinement

Язык: Английский

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Prevalent underestimation of tree cooling efficiency attributed to urban intrinsic heterogeneity

Sustainable Cities and Society, Год журнала: 2024, Номер 103, С. 105277 - 105277

Опубликована: Фев. 15, 2024

Язык: Английский

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