Meta-pragmatic investigation of passive strategies from ‘UHI– climatology’ nexus perspective with digital twin as assessment mechanism

IF 3.9 2区 社会学 Q1 URBAN STUDIES Journal of Urban Management Pub Date : 2024-03-27 DOI:10.1016/j.jum.2024.03.002
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Abstract

A global phenomenon identified 200 years ago as Urban Heat Island (UHI) effect gained popularity as the sheer contributor to the precipitous temperature gradient between rural and urban interface, instigating excess heat gain and associated ill effects on the urban dwellers. UHI is a function of many interrelated geographical, ecological, and economic parameters that require differential treatment in determining the antecedent impacts. This transdisciplinary review assessed the passive strategies (vegetation, cool roofs, cool pavements, and green roofs) from 83 studies that employed a numerical simulation approach to combat UHI. On average, vegetation and cool/green roofs can reduce ambient temperature by 3–5 ​°C, while cool pavements help to reduce surface temperature by 5 ​°C. All passive strategies also reveal it can reduce buildings' energy demand by 4–10%. However, the current methodological framework for evaluating UHI is quite fragmented, using multiple software and estimates only Surface Urban Heat Island (SUHI), ignoring Canopy Urban Heat Island (CUHI), Boundary Urban Heat Island (BUHI), and the nexus of ‘UHI-Climatology,’ which is linked to regional and global climate change, failing to model UHI and its complex connection to climate change accurately. The review found that the efficacy of passive strategies is a function of factors ranging from location, cloud cover, and soil type to simulation accuracy; hence, while these passive strategies alleviate outdoor temperature in one place, they can cause counterproductive impacts in another region. Therefore, as a postlude, the paper explores an alternative methodological framework for evaluating the nexus of UHI-Climatology using digital twin technology, thus espousing better mitigation strategies.

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以数字孪生为评估机制,从 "UHI-气候学 "关系的角度对被动策略进行元实用调查
城市热岛效应(UHI)是 200 年前发现的一种全球现象,它是造成城乡交界处温度梯度陡峭、热量增加过多并对城市居民产生不利影响的主要原因。UHI 是许多相互关联的地理、生态和经济参数的函数,在确定前因影响时需要区别对待。这篇跨学科综述评估了 83 项研究中的被动策略(植被、凉爽屋顶、凉爽路面和绿色屋顶),这些研究采用了数值模拟方法来应对 UHI。平均而言,植被和凉爽/绿色屋顶可将环境温度降低 3-5 °C,而凉爽路面可将地表温度降低 5 °C。所有被动式策略还显示,它可以将建筑物的能源需求降低 4-10%。然而,目前评估城市热岛的方法框架非常零散,使用多种软件,仅估算了地表城市热岛(SUHI),忽略了树冠城市热岛(CUHI)、边界城市热岛(BUHI)以及与区域和全球气候变化相关的 "城市热岛-气候学 "联系,未能准确模拟城市热岛及其与气候变化的复杂联系。综述发现,被动式策略的效果取决于从位置、云层、土壤类型到模拟精度等各种因素;因此,虽然这些被动式策略在一个地方缓解了室外温度,但在另一个地区却可能造成适得其反的影响。因此,作为序曲,本文探讨了利用数字孪生技术评估特高气温影响与气候学关系的替代方法框架,从而提出更好的缓解策略。
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来源期刊
CiteScore
9.50
自引率
4.90%
发文量
45
审稿时长
65 days
期刊介绍: Journal of Urban Management (JUM) is the Official Journal of Zhejiang University and the Chinese Association of Urban Management, an international, peer-reviewed open access journal covering planning, administering, regulating, and governing urban complexity. JUM has its two-fold aims set to integrate the studies across fields in urban planning and management, as well as to provide a more holistic perspective on problem solving. 1) Explore innovative management skills for taming thorny problems that arise with global urbanization 2) Provide a platform to deal with urban affairs whose solutions must be looked at from an interdisciplinary perspective.
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