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Sea breeze cooling capacity and its influencing factors in a coastal city

机译：沿海城市海风冷却能力及其影响因素

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摘要

The sea breeze is a common phenomenon in coastal cities, but its cooling effect has not been well investigated. In this research, we firstly propose a metric of sea breeze cooling capacity (SBCC) to quantify the cooling effect of sea breezes in a coastal city, Adelaide, Australia. Based on data from the Adelaide urban heat island monitoring network in 2010-2013, we reveal the temporal and spatial patterns of SBCC in summer days in the Adelaide Central Business District (CBD) and examine their associations with environmental variables. The results show that the inter-event variability of SBCC is explained by specific humidity and wind speed, while the spatial variability of SBCC is explained by distance towards the coast, frontal area index (FAI), terrain ruggedness index (TRI) and temperature prior to the sea breeze onset. Specifically, SBCC is negatively correlated with FAI and positively correlated with TRI. Future development of high-rise buildings in the Adelaide CBD can lead to changes in both FAI and TRI. It is estimated that the projected building development in Adelaide may cause a change of SBCC ranging from -195 to 143 degrees C h over an average summer. This research has important implications for urban planning, public health and energy consumption in coastal cities.
机译：海风是沿海城市的常见现象，但其降温效果尚未得到很好的研究。在这项研究中，我们首先提出了一种海风冷却能力（SBCC）指标，以量化澳大利亚沿海城市阿德莱德的海风冷却效果。基于2010-2013年阿德莱德城市热岛监测网络的数据，我们揭示了夏季阿德莱德中央商务区（CBD）SBCC的时空格局，并研究了它们与环境变量的关系。结果表明，SBCC的事件间变异性是由特定的湿度和风速来解释的，而SBCC的空间变异性是由到海岸的距离，额叶面积指数（FAI），地形崎index性指数（TRI）和气温到海风来袭。具体而言，SBCC与FAI负相关，与TRI正相关。阿德莱德中央商务区高层建筑的未来发展可能导致FAI和TRI的变化。据估计，在平均夏季，阿德莱德的建筑开发计划可能会导致SBCC的变化范围从-195到143℃h。这项研究对沿海城市的城市规划，公共卫生和能源消耗具有重要意义。

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