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Approaches to study Urban Heat Island - Abilities and limitations

机译：研究城市热岛的方法-能力和局限性

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摘要

Urban Heat Island (UHI) has significant impacts on the buildings energy consumption and outdoor air quality (OAQ). Various approaches, including observation and simulation techniques, have been proposed to understand the causes of UHI formation and to find the corresponding mitigation strategies. However, the causes of UHI are not the same in different climates or city features. Thus, general conclusion cannot be made based on limited monitoring data.rnWith recent progress in computational tools, simulation methods have been used to study UHI. These approaches, however, are also not able to cover all the phenomena that simultaneously contribute to the formation of UHI. The shortcomings are mostly attributed to the weakness of the theories and computational cost.rnThis paper presents a review of the techniques used to study UHI. The abilities and limitations of each approach for the investigation of UHI mitigation and prediction are discussed. Treatment of important parameters including latent, sensible, storage, and anthropogenic heat in addition to treatment of radiation, effect of trees and pond, and boundary condition to simulate UHI is also presented. Finally, this paper discusses the application of integration approach as a future opportunity.
机译：城市热岛（UHI）对建筑物的能耗和室外空气质量（OAQ）产生重大影响。已经提出了各种方法，包括观察和模拟技术，以了解UHI形成的原因并找到相应的缓解策略。但是，UHI的原因在不同的气候或城市特征中是不同的。因此，不能基于有限的监测数据得出一般结论。随着计算工具的最新进展，仿真方法已用于研究UHI。但是，这些方法也不能涵盖所有同时导致UHI形成的现象。该缺陷主要归因于理论和计算成本的薄弱。本文对研究UHI的技术进行了综述。讨论了研究UHI缓解和预测的每种方法的能力和局限性。除辐射处理，树木和池塘的影响以及模拟UHI的边界条件外，还介绍了重要参数的处理，包括潜热，显热，存储和人为热。最后，本文讨论了集成方法的应用作为未来的机会。

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