Impacts of Urban land surface temperature on tract landscape pattern, physical and social variables

This paper first focuses on the study of the relationship between the urban heat island (UHI) and the selected physical variables (percentage of urban surface covers, Normalized Difference Vegetation Index (NDVI)) and social variables (population density (PDEN)), and then concentrates on the study o...

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Bibliographic Details
Published inInternational journal of remote sensing Vol. 41; no. 2; pp. 683 - 703
Main Authors Zhou, Guoqing, Wang, Haoyu, Chen, Weirong, Zhang, Guangyun, Luo, Qingli, Jia, Bin
Format Journal Article
LanguageEnglish
Published London Taylor & Francis 17.01.2020
Taylor & Francis Ltd
Subjects
Commerce
Land cover
Land surface temperature
Land use
Landscape
Mitigation
Normalized difference vegetative index
Population density
Social factors
Surface temperature
Transportation
Urban areas
Urban heat islands
Vegetation
Vegetation index
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Summary:This paper first focuses on the study of the relationship between the urban heat island (UHI) and the selected physical variables (percentage of urban surface covers, Normalized Difference Vegetation Index (NDVI)) and social variables (population density (PDEN)), and then concentrates on the study of the relationship between UHI and the landscape spatial geometric patterns. The researched results discover that urban Land Surface Temperature (LST) is not only impacted by land cover composition, i.e. land use/cover, which is expressed in this paper as the PURB (commerce/industry/transportation), but also its spatial geometric configuration, i.e. various landscape geometric pattern metrics, which in this paper are expressed by compositional percentage of landscape area (PLAND), configurational edge density (ED), patch density (PD), landscape shape index (LSI), clumpiness index (CI), and Shannon's diversity index (SHDI). The results show that the proportion of vegetation coverage out of a tract impacts its contribution to an entire UHI in Washington District of Columbia (DC), in particular, interspersing vegetation within a tract is capable of making a stronger mitigation effect to UHI than its concentrated form. Thus, a scatter spatial arrangement and distribution of vegetation is proposed to mitigate UHI effect.
ISSN:0143-1161
1366-5901
DOI:10.1080/01431161.2019.1646939