气候变化领域集成服务门户(CCPortal): Surface Urban Heat Island Across 419 Global Big Cities

CCPortal

DOI	10.1021/es2030438
	Surface Urban Heat Island Across 419 Global Big Cities
	Peng, Shushi; Piao, Shilong; Ciais, Philippe; Friedlingstein, Pierre; Ottle, Catherine; Breon, Francois-Marie; Nan, Huijuan; Zhou, Liming; Myneni, Ranga B.
通讯作者	Piao, SL (通讯作者)
发表日期	2012
ISSN	0013-936X
EISSN	1520-5851
起始页码	696
结束页码	703
卷号	46 期号:2
英文摘要	Urban heat island is among the most evident aspects of human impacts on the earth system. Here we assess the diurnal and seasonal variation of surface urban heat island intensity (SUHII) defined as the surface temperature difference between urban area and suburban area measured from the MODIS. Differences in SUHII are analyzed across 419 global big cities, and we assess several potential biophysical and socio-economic driving factors. Across the big cities, we show that the average annual daytime SUHII (1.5 +/- 1.2 degrees C) is higher than the annual nighttime SUHII (1.1 +/- 0.5 degrees C) (P < 0.001). But no correlation is found between daytime and nighttime SUHII across big cities (P = 0.84), suggesting different driving mechanisms between day and night. The distribution of nighttime SUHII correlates positively with the difference in albedo and nighttime light between urban area and suburban area, while the distribution of daytime SUHII correlates negatively across cities with the difference of vegetation cover and activity between urban and suburban areas. Our results emphasize the key role of vegetation feedbacks in attenuating SUHII of big cities during the day, in particular during the growing season, further highlighting that increasing urban vegetation cover could be one effective way to mitigate the urban heat island effect.
关键词	LAND-USE CHANGE CLIMATE VEGETATION ENERGY MODIS URBANIZATION POPULATION PARAMETERS EMISSIONS ALBEDO
语种	英语
WOS研究方向	Engineering ; Environmental Sciences & Ecology
WOS类目	Engineering, Environmental ; Environmental Sciences
WOS记录号	WOS:000299136200019
来源期刊	ENVIRONMENTAL SCIENCE & TECHNOLOGY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258092
推荐引用方式 GB/T 7714	Peng, Shushi,Piao, Shilong,Ciais, Philippe,et al. Surface Urban Heat Island Across 419 Global Big Cities[J]. 中国科学院青藏高原研究所,2012,46(2).
APA	Peng, Shushi.,Piao, Shilong.,Ciais, Philippe.,Friedlingstein, Pierre.,Ottle, Catherine.,...&Myneni, Ranga B..(2012).Surface Urban Heat Island Across 419 Global Big Cities.ENVIRONMENTAL SCIENCE & TECHNOLOGY,46(2).
MLA	Peng, Shushi,et al."Surface Urban Heat Island Across 419 Global Big Cities".ENVIRONMENTAL SCIENCE & TECHNOLOGY 46.2(2012).