干旱区生态环境知识资源中心(Arid): Simultaneous investigation of surface and canopy urban heat islands over global cities

Arid

DOI	10.1016/j.isprsjprs.2021.09.003
	Simultaneous investigation of surface and canopy urban heat islands over global cities
	Du, Huilin; Zhan, Wenfeng; Liu, Zihan; Li, Jiufeng; Li, Long; Lai, Jiameng; Miao, Shiqi; Huang, Fan; Wang, Chenguang; Wang, Chunli; Fu, Huyan; Jiang, Lu; Hong, Falu; Jiang, Sida
通讯作者	Zhan, WF (corresponding author), Nanjing Univ, Xianlin Campus,163 Xianlin Ave, Nanjing 210023, Jiangsu, Peoples R China.
来源期刊	ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING
ISSN	0924-2716
EISSN	1872-8235
出版年	2021
卷号	181 页码:67-83
英文摘要	Interpreting the similarities and dissimilarities in spatiotemporal variations and various controls between surface and canopy urban heat islands (UHIs) is critical for a better understanding of their vertical structure. Preceding comparisons of the surface UHI (SUHI) and canopy UHI (CUHI), however, remain mostly restricted either in a single city or over a few cities within limited background climates; therefore, the associated similarities and dissimilarities between the SUHI and CUHI under different climates, especially at a global scale, remain largely unknown. Based on both satellite and in situ data, we simultaneously investigated the spatiotemporal patterns of the SUHI intensity (SUHII) and CUHI intensity (SUHII) of 366 global cities within various background climates. We further investigated the different impacts of several controls (e.g., vegetation coverage, population size, precipitation) on SUHII and CUHII. Our results indicate the following: (1) For the selected 366 cities, the annual mean SUHII is higher than CUHII by 1.1 +/- 1.9 degrees C (mean f Std) during the day and 0.3 +/- 1.5 degrees C (mean +/- Std) at night. The SUHII and CUHII in the equatorial, warm temperate, and snow climates are generally consistent with the above characteristics (i.e., SUHII > CUHII), however, in arid regions SUHII is lower than CUHII by 0.8 degrees C during the day. (2) The annual mean day-night difference in SUHII is positive (i.e., 0.6 +/- 1.8 degrees C (mean Std)), while the difference in CUHII becomes negative (i.e., -0.2 +/- 1.6 degrees C (mean +/- Std)), indicating that urbanization increases the diurnal temperature range (DTR) based on land surface temperature, but it decreases the DTR based on surface air temperature. (3) Despite the high correlation between vegetation coverage and impervious surface percentage (ISP), their impacts on SUHII and CUHII were not consistent. The urban-rural difference in ISP exerts an insignificant impact on both SUHII and CUHII during the day and a greater impact on CUHII than on SUHII at night, whereas the urban-rural difference in vegetation coverage has a greater impact on SUHII than on CUHII during the day, while the opposite occurs at night. The impacts of population size on SUHII and CUHII are much greater during the night than on the day in which their impacts can be minimal. The relationship between annual mean precipitation and SUHII is positive during the day but negative at night, while for CUHII, their relationship is insignificantly negative both during the day and at night. These results can improve our understanding of the spatiotemporal patterns and controls of these two types of UHIs under various climates.
英文关键词	Surface urban heat island Canopy urban heat island Thermal remote sensing Surface properties Population size Climatic controls
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000697168200005
WOS关键词	AIR-TEMPERATURE ; SKIN TEMPERATURE ; NEAR-SURFACE ; CLIMATE ; VEGETATION ; MAGNITUDE ; ALGORITHM ; DATABASE ; SCALE ; ZONES
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Physical Geography ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
来源机构	南京大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363692
作者单位	[Du, Huilin; Zhan, Wenfeng; Liu, Zihan; Li, Jiufeng; Li, Long; Lai, Jiameng; Miao, Shiqi; Huang, Fan; Wang, Chenguang; Wang, Chunli; Fu, Huyan; Jiang, Lu; Hong, Falu; Jiang, Sida] Nanjing Univ, Int Inst Earth Syst Sci, Jiangsu Prov Key Lab Geog Informat Sci & Technol, Nanjing 210023, Jiangsu, Peoples R China; [Zhan, Wenfeng] Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing 210023, Peoples R China
推荐引用方式 GB/T 7714	Du, Huilin,Zhan, Wenfeng,Liu, Zihan,et al. Simultaneous investigation of surface and canopy urban heat islands over global cities[J]. 南京大学,2021,181:67-83.
APA	Du, Huilin.,Zhan, Wenfeng.,Liu, Zihan.,Li, Jiufeng.,Li, Long.,...&Jiang, Sida.(2021).Simultaneous investigation of surface and canopy urban heat islands over global cities.ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING,181,67-83.
MLA	Du, Huilin,et al."Simultaneous investigation of surface and canopy urban heat islands over global cities".ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING 181(2021):67-83.