Spatiotemporal variation of heat fluxes in Beijing with land use change from 1997 to 2017

doi:10.1016/j.pce.2018.11.001

	Spatiotemporal variation of heat fluxes in Beijing with land use change from 1997 to 2017
	Guo, Menghui 1,2; Chen, Shaohui 1; Wang, Weimin 3; Liang, Hong 3; Hao, Guibin 1,2; Liu, Kai 1
刊名	PHYSICS AND CHEMISTRY OF THE EARTH
	2019-04-01
卷号	110 页码:51-60
关键词	Urban heat flux Latent heat flux Sensible heat flux Land use Thermal infrared remote sensing model
ISSN号	1474-7065
DOI	10.1016/j.pce.2018.11.001
通讯作者	Chen, Shaohui(csh_1976@163.com)
英文摘要	It is meaningful to explore the influence of land use change on urban thermal environment for urban sustainable development and city livability improvement etc. Based on one pixel component arranging comparing algorithm (PCACA), this study estimates three instantaneous heat fluxes of Beijing city from meteorological data and the NDVI, land surface temperature (LST), and albedo products retrieved from Landsat data on September 21, 1997, September 22, 2009 and September 28, 2017. Then the temporal and spatial variation in the heat fluxes of the Beijing with land use change is discussed. The following key points have been found: 1) LST and heat fluxes have distinctly spatial heterogeneity, and significant differences between mountainous and plain areas, and among different land use types in plain area; 2) both LST and heat fluxes have a consistent order of arrangement for different land use types at different times. Forest has the highest latent heat flux (LHF) with an average of 265.7 W/m(2), followed by cropland and grassland, and building land has the smallest average of 158.4 W/m(2). LST has the reverse order, cropland has the highest average of 24.8 degrees C, followed by grassland and cropland, water body has the lowest average of 19.2 degrees C; 3) temporally, urban thermal fluxes vary greatly with land use transition. LHF and sensible heat flux (SHF) will respectively drastically reduce and increase when natural surface changes into building land. These analyses suggest that green spaces play an important role in easing urban heat environment.
资助项目	Strategic Priority Research Program A of the Chinese Academy of Sciences[XDA20010301] ; General Program of National Natural Science Foundation of China[41671368] ; General Program of National Natural Science Foundation of China[41371348] ; National Key R&D Program of China[2017YFB0203101]
WOS关键词	SURFACE-TEMPERATURE ; ENERGY-BALANCE ; IMPERVIOUS SURFACE ; SPATIAL-PATTERN ; SATELLITE ; ISLAND ; EVAPORATION ; COVER ; MODEL ; AREA
WOS研究方向	Geology ; Meteorology & Atmospheric Sciences ; Water Resources
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000468920500006
资助机构	Strategic Priority Research Program A of the Chinese Academy of Sciences ; General Program of National Natural Science Foundation of China ; National Key R&D Program of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/59557]
专题	中国科学院地理科学与资源研究所
通讯作者	Chen, Shaohui
作者单位	1.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Shenzhen Environm Monitoring Ctr, Shenzhen, Peoples R China
推荐引用方式 GB/T 7714	Guo, Menghui,Chen, Shaohui,Wang, Weimin,et al. Spatiotemporal variation of heat fluxes in Beijing with land use change from 1997 to 2017[J]. PHYSICS AND CHEMISTRY OF THE EARTH,2019,110:51-60.
APA	Guo, Menghui,Chen, Shaohui,Wang, Weimin,Liang, Hong,Hao, Guibin,&Liu, Kai.(2019).Spatiotemporal variation of heat fluxes in Beijing with land use change from 1997 to 2017.PHYSICS AND CHEMISTRY OF THE EARTH,110,51-60.
MLA	Guo, Menghui,et al."Spatiotemporal variation of heat fluxes in Beijing with land use change from 1997 to 2017".PHYSICS AND CHEMISTRY OF THE EARTH 110(2019):51-60.