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Proceedings Paper

Analysis of urban thermal characteristics and associated land cover with Landsat TM/ETM+ data in Shenyang, China
Author(s): Dongmei Lv; Kaishan Song; Lihong Zeng; Cui Jin; Dianwei Liu; Zongming Wang
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Paper Abstract

China has witnessed fast urban growth in recent decades. In this study, remote sensing data from both Landsat-5 TM and Landsat-7 ETM+ were utilized to assess the spatial-temporal characteristics of the urban area in Shenyang in northeast China. To quantitatively determine urban land use extents and development densities, land use/cover were mapped for 8 periods from 1986 to 2007 around the urban and suburban area in Shenyang. The urban-rural boundaries and urban development densities were defined by selecting certain imperviousness threshold values and Landsat thermal bands were used to investigate the thermal patterns of urban surface. Analysis results suggest that urban surface thermal characteristics and patterns can be identified qualitatively based on the urban land use and development density data. Results show that the urban area of Shenyang has an obvious daytime heating effect (heat-source). These thermal effects are strongly correlated with urban development densities i.e. higher percentage imperviousness is usually associated with higher surface temperature. Using vegetation canopy coverage information, the spatial and temporal distributions of urban impervious surface and associated thermal characteristics were demonstrated to be very useful source in quantifying urban land use, development intensity, and urban thermal patterns.

Paper Details

Date Published: 10 October 2009
PDF: 11 pages
Proc. SPIE 7471, Second International Conference on Earth Observation for Global Changes, 747103 (10 October 2009); doi: 10.1117/12.836303
Show Author Affiliations
Dongmei Lv, Jilin Architectural and Civil Engineering Institute (China)
Kaishan Song, Northeast Institute of Geography and Agricultural Ecology, CAS (China)
Lihong Zeng, Northeast Institute of Geography and Agricultural Ecology, CAS (China)
Cui Jin, Northeast Institute of Geography and Agricultural Ecology, CAS (China)
Dianwei Liu, Northeast Institute of Geography and Agricultural Ecology, CAS (China)
Zongming Wang, Northeast Institute of Geography and Agricultural Ecology, CAS (China)


Published in SPIE Proceedings Vol. 7471:
Second International Conference on Earth Observation for Global Changes
Xianfeng Zhang; Jonathan Li; Guoxiang Liu; Xiaojun Yang, Editor(s)

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