NDLI: Estimation of urbanization effect on climatic warming over the recent 30 years in Guangzhou, South China

Content Provider	IEEE Xplore Digital Library
Author	Yongzhu Xiong Zhengdong Zhang Feng Chen Run Wang
Copyright Year	2010
Description	Author affiliation: School of Geography, South China Normal University, Guangzhou, 510631, China (Zhengdong Zhang) \|\| Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China (Feng Chen; Run Wang) \|\| School of Geography and Tourism, Jiaying University, Meizhou 514015, China (Yongzhu Xiong)
Abstract	The urbanization effect on climate warming over the recent three decades (1978~2007) in Guangzhou, south China, where has experienced rapid urbanization process since China's reform and opening-up initiated in the late 1978, was estimated by comparing surface air temperature (SAT) observations in the urban meteorological station with those in its two surrounding rural stations. The climatic warming trend in Guangzhou city is 0.44°C/decade for the urban station and an average of 0.32°C/decade for the rural stations, resulting in an urban warming rate of 0.12°C/decade and a 27.3% contribution proportion to the climatic trend. In addition, there are obvious seasonal changes in the urban heat island intensity and its contribution to urban warming in the climatic change. The largest seasonal urban warming rate due to UHI is in summer and spring with 0.14°C/decade, the second in autumn with 0.11°C/decade, and the smallest in winter being 0.09°C/decade. The largest contribution of urban warming to SAT trend in season is in summer (51.9%), the second in autumn (27.5%), the third in spring (25.9%), and the least in winter (16.4%). Results indicate that urbanization effect could produce different seasonal pattern in UHI intensity variation, enhance the climatic warming rate, and result in overestimating the climatic warming trend to some considerable extent at the local scale. This study can help further improve the understanding of urban climatic change and global warming.
Starting Page	1
Ending Page	6
File Size	617004
Page Count	6
File Format	PDF
ISBN	9781424473014
e-ISBN	9781424473038
DOI	10.1109/GEOINFORMATICS.2010.5567710
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-18
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Urban warming Climatic change Time series analysis Cities and towns Urbanization Global warming Guangzhou Thermal pollution Springs Ocean temperature Urban heat island Meteorology
Content Type	Text
Resource Type	Article

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