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Impacts of the Urban Spatial Landscape in Beijing on Surface and Canopy Urban Heat Islands

Journal of Meteorological Research 2022年第6期36卷 882-899页

作者： Yonghong LIU Yongming XU Yeping ZHANG Xiuzhen HAN Fuzhong WENG Chunyi XUAN Wenjun SHU CMA Earth System Modeling and Prediction Centre China Meteorological Administration(CMA)Beijing 100081 State Key Laboratory of Severe Weather Chinese Academy of Meteorological SciencesChina Meteorological AdministrationBeijing 100081 School of Remote Sensing and Geomatics Engineering Nanjing University of Information Science&TechnologyNanjing 210044 National Satellite Meteorological Centre China Meteorological AdministrationBeijing 100081 Beijing Municipal ClimateCentre Beijing Meteorological ServiceBeijing 100089

How does the urban spatial landscape(USL)pattern affect the land surface urban heat islands(SUHIs)and canopy urban heat islands(CUHIs)?Based on satellite and meteorological observations,this case study compares the impacts of the USL pattern on SUHI and CUHI in the central urban area(CUA)of Beijing using the satellite land-surface-temperature product and hourly temperature data from automatic meteorological stations from 2009 to *** USL metrics—building height(BH),building density(BD),standard deviation of building height(BSD),floor area ratio(FAR),frontal area index(FAI),roughness length(RL),sky view factor(SVF),urban fractal dimension(FD),vegetation coverage(VC),impervious coverage(IC),and albedo(AB)—with a 500-m spatial resolution in the CUA are extracted for comparative *** results show that SUHI is higher than CUHI at night,and SUHI is only consistent with CUHI at spatial-temporal scales at night,particularly in ***,all 11 metrics are strongly correlated with both the SUHI and CUHI at night,with stronger correlation between most metrics and ***,AB,and SVF have the greatest impact on both the SUHI and *** SUHI and CUHI values tend to appear in areas with BD≥0.26,VC≤0.09,AB≤0.09,and SVF≤*** summer,most metrics have a greater impact on the SUHI than CUHI;the opposite is observed in *** variation is affected primarily by VC in summer and by VC and AB in winter,which is different for the CUHI *** collective contribution of all 11metrics to SUHI spatial variation in summer(61.8%)is higher than that to CUHI;however,the opposite holds in winter and for the entire year,where the cumulative contribution of the factors accounts for 66.6%and 49.6%,respectively,of the SUHI variation.

关键词： surface urban heat island canopy urban heat island vegetation coverage albedo sky view factor building density Beijing

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The transformation of the residential texture of modern Chinese cities:A case study of Chongqing

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西部人居环境学刊 2016年第S1期 110-116页

作者： Wenyong Tan Faculty of Architecture and Urban Planning Chongqing University

Ever since the early 20th century,two great transformations have respectively happened in modern Chinese society in the year of 1949 and *** to the two junctions,the modern Chinese society can be divided into three stages,namely before the liberation,the planned economy and the market ***’s concept of morphological period says that the transformation in social politics,economy and culture can be reflected in the urban spatial *** paper,with a case study of Chongqing and the three typical residential areas in the above three different stages as samples,first explores into the texture characteristics of the residential areas from the angle of the street patterns,building density and the building and space *** by delving into the relation between the transformation of the residential texture and the social politics,economy and culture in China,the major forces determining the residential texture are revealed in hope of enlightening the residential plan,construction and management.

关键词： Residential area Street patterns building density Chinese cities Chongqing

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