Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/aa95fb |
Shifting the urban heat island clock in a megacity: a case study of Hong Kong | |
Chen, Xuan; Jeong, Su-Jong | |
2018 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS |
ISSN | 1748-9326 |
出版年 | 2018 |
卷号 | 13期号:1 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | With increasing levels of urbanization in the near future, understanding the impact of urbanization on urban heat islands (UHIs) is critical to adapting to regional climate and environmental changes. However, our understanding of the UHI effect relies mainly on its intensity or magnitude. The present study evaluates the impact of urbanization on UHI duration changes by comparing three stations with different rates of urbanization, including highly developed and developing urban areas throughout Hong Kong, from 1990-2015. Results show that the 26 year average UHI intensity in highly urbanized regions is much higher than that in developing areas, and the 26 year average of UHI duration is similar. Over the past 25 years, however, UHI duration has increased only in developing urban areas, from 13.59-17.47 hours. Both earlier UHI starting and later UHI ending times concurrently contribute to the UHI effect being experienced for a longer duration. The differences in UHI duration change between the two areas are supported by population and by night light changes from space. Increasing night light, which suggests enhancements in the economic infrastructure, occurred only in the developing urban areas. Our results suggest that changes in UHI duration should be included in an assessment of regional climate change as well as in urban planning in a megacity. |
英文关键词 | urbanization urban heat island regional climate change UHI duration |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000422740400002 |
WOS关键词 | CLIMATE-CHANGE ; SURFACE-TEMPERATURE ; SEA-BREEZE ; LAND-USE ; IMPACT ; URBANIZATION ; CHINA ; INTENSITY ; EMISSIONS ; POLLUTION |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/37620 |
专题 | 气候变化 |
作者单位 | Southern Univ Sci & Technol SUSTech, Sch Environm Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China |
推荐引用方式 GB/T 7714 | Chen, Xuan,Jeong, Su-Jong. Shifting the urban heat island clock in a megacity: a case study of Hong Kong[J]. ENVIRONMENTAL RESEARCH LETTERS,2018,13(1). |
APA | Chen, Xuan,&Jeong, Su-Jong.(2018).Shifting the urban heat island clock in a megacity: a case study of Hong Kong.ENVIRONMENTAL RESEARCH LETTERS,13(1). |
MLA | Chen, Xuan,et al."Shifting the urban heat island clock in a megacity: a case study of Hong Kong".ENVIRONMENTAL RESEARCH LETTERS 13.1(2018). |
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