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Proceedings Paper

Coupling relationship of land surface temperature, impervious surface area and normalized difference vegetation index for urban heat island using remote sensing
Author(s): Xiuju Wu; Qian Cheng
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Paper Abstract

The comparison of the normalized difference vegetation index (NDVI) and percent impervious surface as indicators of surface urban heat island effects in Landsat imagery were researched by investigating the relationships between the land surface temperature (LST), percent impervious surface area (%ISA), and the NDVI. Landsat Thematic Mapper (TM) and Enhanced Thematic Mapper Plus (ETM+) data were used to estimate the LST for the Hangzhou City, China. A map of percent impervious surface was generated using a normalized spectral mixture analysis of July 2003 Landsat TM imagery. The results indicate there is a strong linear relationship between LST and percent impervious surface, whereas the relationship between LST and NDVI is much less strong. This result suggests percent impervious surface was a accurate index instead of the traditionally applied NDVI for analyzing LST quantitatively over the seasons for surface urban heat island studies.

Paper Details

Date Published: 30 October 2007
PDF: 8 pages
Proc. SPIE 6749, Remote Sensing for Environmental Monitoring, GIS Applications, and Geology VII, 674929 (30 October 2007); doi: 10.1117/12.737550
Show Author Affiliations
Xiuju Wu, Zhejiang Gongshang Univ. (China)
Qian Cheng, Zhejiang Gongshang Univ. (China)

Published in SPIE Proceedings Vol. 6749:
Remote Sensing for Environmental Monitoring, GIS Applications, and Geology VII
Manfred Ehlers; Ulrich Michel, Editor(s)

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