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Journal of Applied Remote Sensing • Open Access

Surface urban heat island effect and its relationship with urban expansion in Nanjing, China
Author(s): Lili Tu; Zhihao Qin; Wenjuan Li; Jun Geng; Lechan Yang; Shuhe Zhao; Wenfeng Zhan; Fei Wang

Paper Abstract

Nanjing, a typical megacity in eastern China, has undergone dramatic expansion during the past decade. The surface urban heat island (SUHI) effect is an important indicator of the environmental consequences of urbanization and has rapidly changed the dynamics of Nanjing. Accurate measurements of the effects and changes resulting from the SUHI effect may provide useful information for urban planning. Index, centroid transfer, and correlation analyses were conducted to measure the dynamics of the SUHI and elucidate the relationship between the SUHI and urban expansion in Nanjing over the past decade. Overall, the results indicated that (1) the region affected by the SUHI effect gradually expanded southward and eastward from 2000 to 2012; (2) the centroid of the SUHI moved gradually southeastward and then southward and southwestward, which is consistent with the movement of the urban centroid; (3) the trajectory of the level-3 SUHI centroid did not correspond with the urban mass or SUHI centroids during the study period and (4) the SUHI intensity and urban fractal characteristics were negatively correlated. In addition, we presented insights regarding the minimization of the SUHI effect in cities such as Nanjing, China.

Paper Details

Date Published: 23 June 2016
PDF: 17 pages
J. Appl. Rem. Sens. 10(2) 026037 doi: 10.1117/1.JRS.10.026037
Published in: Journal of Applied Remote Sensing Volume 10, Issue 2
Show Author Affiliations
Lili Tu, Nanjing Univ. (China)
Zhihao Qin, Chinese Academy of Agricultural Sciences (China)
Wenjuan Li, Chinese Academy of Agricultural Sciences (China)
Jun Geng, Nanjing Univ. (China)
Lechan Yang, Nanjing Univ. (China)
Shuhe Zhao, Nanjing Univ. (China)
Wenfeng Zhan, Nanjing Univ. (China)
Fei Wang, Nanjing Univ. (China)

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