Seasonal Variation in Air Temperature and Relative Humidity on Building Areas and in Green Spaces in Beijing, China

doi:10.1007/s11769-020-1097-0

	Seasonal Variation in Air Temperature and Relative Humidity on Building Areas and in Green Spaces in Beijing, China
	Kuang Wenhui
刊名	CHINESE GEOGRAPHICAL SCIENCE
	2020-02-01
卷号	30 期号:1 页码:75-88
关键词	air temperature relative humidity outdoor thermal comfort urban park planning
ISSN号	1002-0063
DOI	10.1007/s11769-020-1097-0
通讯作者	Kuang Wenhui(kuangwh@igsnrr.ac.cn)
英文摘要	The cooling and humidifying effects of urban parks are an essential component of city ecosystems in terms of regulating microclimates or mitigating urban heat islands (UHIs). Air temperature and relative humidity are two main factors of thermal environmental comfort and have a critical impact on the urban environmental quality of human settlements. We measured the 2-m height air temperature and relative humidity at the Beijing Olympic Park and a nearby building roof for more than 1 year to elucidate seasonal variations in air temperature and relative humidity, as well as to investigate the outdoor thermal comfort. The results showed that the lawn of the park could, on average, reduce the air temperature by (0.80 +/- 0.19)degrees C, and increase the relative humidity by (5.24 +/- 2.91)% relative to the values measured at the building roof during daytime. During the nighttime, the lawn of the park reduced the air temperature by (2.64 +/- 0.64)degrees C and increased the relative humidity by (10.77 +/- 5.20)%. The park was cooler and more humid than surrounding building area, especially in night period (more pronounced cooling with 1.84 degrees C). Additionally, the lawn of the park could improve outdoor thermal comfort through its cooling and humidifying effects. The level of thermal comfort in the park was higher than that around the building roof for a total of 11 days annually in which it was above one or more thermal comfort levels (average reduced human comfort index of 0.92) except during the winter.
资助项目	National Natural Science Foundation of China[41871343] ; Major Project of National Natural Science Foundation of China[41590842] ; Strategic Priority Research Program A of the Chinese Academy of Sciences[XDA23100201]
WOS关键词	URBAN HEAT-ISLAND ; LANDSCAPE DESIGN PARAMETERS ; LAND-SURFACE TEMPERATURE ; THERMAL COMFORT ; ENERGY-EXCHANGE ; COOL-ISLAND ; HOT SUMMER ; IMPACT ; CLIMATE ; CITY
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000518227700006
资助机构	National Natural Science Foundation of China ; Major Project of National Natural Science Foundation of China ; Strategic Priority Research Program A of the Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/132889]
专题	中国科学院地理科学与资源研究所
通讯作者	Kuang Wenhui
作者单位	Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Kuang Wenhui. Seasonal Variation in Air Temperature and Relative Humidity on Building Areas and in Green Spaces in Beijing, China[J]. CHINESE GEOGRAPHICAL SCIENCE,2020,30(1):75-88.
APA	Kuang Wenhui.(2020).Seasonal Variation in Air Temperature and Relative Humidity on Building Areas and in Green Spaces in Beijing, China.CHINESE GEOGRAPHICAL SCIENCE,30(1),75-88.
MLA	Kuang Wenhui."Seasonal Variation in Air Temperature and Relative Humidity on Building Areas and in Green Spaces in Beijing, China".CHINESE GEOGRAPHICAL SCIENCE 30.1(2020):75-88.