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Quantifying urban heat island intensity in Hong Kong SAR, China

机译：量化中国香港特别行政区的城市热岛强度

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摘要

This paper addresses the methodological concerns in quantifying urban heat island (UHI) intensity in Hong Kong SAR, China. Although the urban heat island in Hong Kong has been widely investigated, there is no consensus on the most appropriate fixed point meteorological sites to be used to calculate heat island intensity. This study utilized the Local Climate Zones landscape classification system to classify 17 weather stations from the Hong Kong Observatory's extensive fixed point meteorological observation network. According to the classification results, the meteorological site located at the Hong Kong Observatory Headquarters is the representative urban weather station in Hong Kong, whereas sites located at Tsak Yue Wu and Ta Kwu Ling are appropriate rural or nonurbanized counterparts. These choices were validated and supported quantitatively through comparison of long-term annual and diurnal UHI intensities with rural stations used in previous studies. Results indicate that the rural stations used in previous studies are not representative, and thus, the past UHI intensities calculated for Hong Kong may have been underestimated.
机译：本文探讨了量化中国香港特别行政区城市热岛强度的方法论问题。尽管对香港的城市热岛进行了广泛的调查，但对于用于计算热岛强度的最合适的定点气象站点尚无共识。这项研究利用本地气候区景观分类系统对香港天文台广泛的定点气象观测网络中的17个气象站进行了分类。根据分类结果，位于香港天文台总部的气象站点是香港代表性的城市气象站，而位于泽岳湖和打鼓岭的站点则是适合农村或非城市化的站点。通过比较长期的年度和昼夜UHI强度与先前研究中使用的农村气象站，对这些选择进行了验证和定量支持。结果表明，以前的研究中使用的农村站点没有代表性，因此，过去为香港计算的UHI强度可能被低估了。

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