Evaluating urban heat island to achieve sustainable development goals: A case study of Tiruchirappalli city, India

IF 10.5 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Sustainable Cities and Society Pub Date : 2024-10-05 DOI:10.1016/j.scs.2024.105865

Deepthi S , Sudalaimani K , Radhakrishnan Shanthi Priya , Radhakrishnan S

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引用次数: 0

Abstract

Tiruchirappalli City the fourth largest municipal corporation in Tamilnadu, India is witnessing accelerated urban growth. The city has exacerbated the microclimate indicating a significant increase in land surface temperature. The study aims to establish the differentiation of land surface temperature of city between 2001, 2011, and 2021 of summer months using Landsat images to examine the effects of urban heat island. The results shows that the temperature ranged from 31.23°C to 37.45°C between 2011 and 2021. The assessed land surface temperature (LST) is correlated and the result shows a positive correlation between the LST-normalised difference built-up index (NDBI) and a negative correlation between the LST-normalised difference vegetation index (NDVI) and a weak correlation between LST-BSI and LST-MNDWI of summer months examined. Further, the urban thermal field variance index (UTFVI) of the city is analysed. The thermal condition of the city during April has significantly changed from 5.14 % of area in 2001 to 12.19 % of area in 2021 (UTFVI >0.020, Strongest) of worst ecological valuation index. The selected city is experiencing major thermal conditions (UTFVI 0.010–0.015) of ecological evaluation index from bad to worst. This study will help mitigate the urban heat island effect and promote sustainable development for rapid urbanization.

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评估城市热岛，实现可持续发展目标：印度 Tiruchirappalli 市案例研究

蒂鲁奇拉帕利市是印度泰米尔纳德邦的第四大市政公司，目前正在加速城市发展。该市小气候恶化，表明地表温度显著上升。这项研究旨在利用大地遥感卫星图像，确定 2001 年、2011 年和 2021 年夏季城市地表温度的差异，以研究城市热岛的影响。结果表明，2011 年至 2021 年间的温度范围为 31.23°C 至 37.45°C。所评估的地表温度（LST）具有相关性，结果显示，在所考察的夏季月份中，LST 归一化差异建筑指数（NDBI）与 LST 归一化差异植被指数（NDVI）之间呈正相关，LST-BSI 与 LST-MNDWI 之间呈负相关，而 LST-BSI 与 LST-MNDWI 之间的相关性较弱。此外，还分析了该市的城市热场方差指数（UTFVI）。该市 4 月份的热状况发生了显著变化，从 2001 年占面积的 5.14% 上升到 2021 年占面积的 12.19%（UTFVI >0.020，最强）。所选城市正经历着生态评价指数从差到最差的主要热状况（UTFVI 0.010-0.015）。这项研究将有助于缓解城市热岛效应，促进快速城市化的可持续发展。

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来源期刊

Sustainable Cities and Society Social Sciences-Geography, Planning and Development

CiteScore

22.00

自引率

13.70%

发文量

810

审稿时长

27 days

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;