DOI: 10.1007/s00382-017-3944-y
Scopus记录号: 2-s2.0-85031417045
论文题名: Harmonic analysis of 130-year hourly air temperature in Hong Kong: detecting urban warming from the perspective of annual and daily cycles
作者: Wang K. ; Li Y. ; Luo Z. ; Yin S. ; Chan P.W.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2018
卷: 51, 期: 2018-01-02 起始页码: 613
结束页码: 625
语种: 英语
英文关键词: Annual temperature cycle
; Daily temperature cycle
; Phase lag
; Urban warming
Scopus关键词: air temperature
; annual cycle
; harmonic analysis
; heat island
; urban atmosphere
; warming
; China
; Hong Kong
英文摘要: The century-long search for the precise mechanisms responsible for urban heat islands continues, while urban warming worsens in many megacities. Most studies have focused on mean temperature, daily and annual temperature ranges and urban heat island intensity. We hypothesize that an analysis of the changes in the characteristics of the complete daily and annual temperature cycles, including not only the mean temperature and temperature ranges (amplitudes) but also the maximum and minimum temperatures and the phases, can provide more information on urban warming phenomena. Through a detailed analysis of long-term observations in Hong Kong, we found that the difference in the daily cycle between urban and rural stations is very distinct, whereas the annual cycles are much more similar, suggesting that the urban environment has a greater effect on the daily cycle than on the annual cycle. The daily phase has shifted a total of 1.77 h later over the last 130 years (1.36 h per century) in the urban area of Hong Kong according to the Hong Kong Observatory (HKO) data. The annual phase change at HKO reflects the globally observed phenomenon that the annual phase advances or seasons onset earlier. © 2017, Springer-Verlag GmbH Germany. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109224
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: Department of Mechanical Engineering, the University of Hong Kong, Hong Kong; School of the Built Environment, University of Reading, Reading, United Kingdom; Hong Kong Observatory, Hong Kong
Recommended Citation:
Wang K.,Li Y.,Luo Z.,et al. Harmonic analysis of 130-year hourly air temperature in Hong Kong: detecting urban warming from the perspective of annual and daily cycles[J]. Climate Dynamics,2018-01-01,51(2018-01-02)