title: Influences of land cover types, meteorological conditions, anthropogenic heat and urban area on surface urban heat island in the Yangtze River Delta Urban Agglomeration.
abstract: Urban heat islands (UHIs) reflect the localized impact of human activities on thermal fields. In this study, we assessed the surface UHI and its relationship with types of land, meteorological conditions, anthropogenic heat sources and urban areas in the Yangtze River Delta Urban Agglomeration (YRDUA) with the aid of remote sensing data, statistical data and meteorological data. The results showed that the UHI intensity in YRDUA was the strongest (0.84°C) in summer, followed by 0.81°C in autumn, 0.78°C in spring and 0.53°C in winter. The daytime UHI intensity is 0.98°C, which is higher than the nighttime UHI intensity of 0.50°C. Then, the relationship between the UHI intensity and several factors such as meteorological conditions, anthropogenic heat sources and the urban area were analysed. The results indicated that there was an insignificant correlation between population density and the UHI intensity. Energy consumption, average temperature and urban area had a significant positive correlation with UHI intensity. However, the average wind speed and average precipitation were significantly negatively correlated with UHI intensity. This study provides insight into the regional climate characteristics and a scientific basis for city layout.
authors.affiliation: School of Geographic Sciences, East China Normal University, No. 500, Dongchuan Road, Minhang District, Shanghai, China.
authors.forename: Hongyu
authors.initials: H
authors.lastname: Du
authors.affiliation: School of Geographic Sciences, East China Normal University, No. 500, Dongchuan Road, Minhang District, Shanghai, China.
authors.forename: Duoduo
authors.initials: D
authors.lastname: Wang
authors.affiliation: School of Geographic Sciences, East China Normal University, No. 500, Dongchuan Road, Minhang District, Shanghai, China.
authors.forename: Yuanyuan
authors.initials: Y
authors.lastname: Wang
authors.affiliation: School of Geographic Sciences, East China Normal University, No. 500, Dongchuan Road, Minhang District, Shanghai, China.
authors.forename: Xiaolei
authors.initials: X
authors.lastname: Zhao
authors.affiliation: School of Geographic Sciences, East China Normal University, No. 500, Dongchuan Road, Minhang District, Shanghai, China.
authors.forename: Fei
authors.initials: F
authors.lastname: Qin
authors.affiliation: School of Geographic Sciences, East China Normal University, No. 500, Dongchuan Road, Minhang District, Shanghai, China.
authors.forename: Hong
authors.initials: H
authors.lastname: Jiang
authors.affiliation: School of Geographic Sciences, East China Normal University, No. 500, Dongchuan Road, Minhang District, Shanghai, China. Electronic address: ylcai@geo.ecnu.edu.cn.
authors.forename: Yongli
authors.initials: Y
authors.lastname: Cai
mesh_terms: D000383:Agriculture; D002681:China; D002947:Cities; D004784:Environmental Monitoring; D006358:Hot Temperature; D055904:Meteorology; D012621:Seasons; D014507:Urbanization
keywords: Anthropogenic heat; Land cover type; Meteorological condition; Surface urban heat island; Urban area