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A big picture of urban heat island mitigation strategies and recommendation for India
Urban Climate ( IF 6.0 ) Pub Date : 2021-04-18 , DOI: 10.1016/j.uclim.2021.100845
Vaibhav Rai Khare , Akash Vajpai , Durva Gupta

Climate change poses a great threat to humans and the ecosystem of the planet. There are many factors that trigger climate change, and there are many aftereffects. One of the after-effects is Urban Heat Island (UHI), recognized as the most evident characteristic of urban climate which occurs due to dark, non-reflective surfaces. These surfaces absorb the warmth of the Sun, radiate heat; Thus, increase the land surface temperature. Additionally, heat islands increase cooling loads in the summer, which tends to increase energy consumption and produce more greenhouse gases. There are numerous strategies to mitigate the UHI effect. This study reviews various UHI mitigation strategies and their effectiveness in cooling the urban environment and propose a set of recommendation based on research and analysis. Broadly, the mitigation strategies have been divided into (i) Roof strategies, (ii) non-roof strategies, and (iii) covered parking strategies. It has been found out that the simultaneous use of several UHI mitigation measures has a more significant impact on lowering the urban temperature and could be mitigated. The study highlights the importance of each mitigation strategy and presents a set of recommendations for India that can be directed at the government level to policies to mitigate the UHI effect.



中文翻译:

印度城市热岛缓解策略的概况和建议

气候变化对人类和地球生态系统构成了巨大威胁。引发气候变化的因素很多,并且有很多后遗症。后效应之一是城市热岛(UHI),它被认为是城市气候最明显的特征,它是由深色,无反射的表面引起的。这些表面吸收太阳的热量,散发热量。因此,升高陆地表面温度。此外,热岛在夏天增加了冷却负荷,这往往会增加能源消耗并产生更多的温室气体。有许多减轻UHI效应的策略。这项研究回顾了各种UHI缓解策略及其在城市环境降温中的有效性,并在研究和分析的基础上提出了一系列建议。宽广地,缓解策略分为(i)屋顶策略,(ii)非屋顶策略和(iii)有盖停车策略。已经发现,同时使用几种减低HIH的措施对降低城市温度具有更大的影响,可以缓解。该研究强调了每种缓解策略的重要性,并提出了一系列针对印度的建议,这些建议可以针对政府,以减轻UHI效应的政策。

更新日期:2021-04-18
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