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Proceedings Paper

Study on the thermal field change and affecting factors in urban areas of Hangzhou tourism city
Author(s): Qian Cheng; Xiuju Wu
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Paper Abstract

The thermal field of urban and suburban areas of Hangzhou tourism city was derived from TM ETM thermal infrared data and the spatial characteristics and changes were qualitatively analyzed. Water bodies have stable and uniform thermal field. The land surface temperature (LST), normalized difference vegetation index (NDVI), buildings distribution information and water body distribution information of two times TM Image in 1993 and 2003 were extracted and the influence factors of thermal field time-space characteristics were analyzed. The two times field of 1993 and 2003 become comparable with each other in thermal value. With the other bands of the same data set, the basic factors affecting the thermal field, namely buildings, greenbelts and water bodies, were identifled by visional interpretation or image processing. The LST, NDVI, buildings and water body distribution information were calculated for qualitative analysis of the basic affecting factors. The results show that the effects upon the thermal field gradually decrease in order of buildings, greenbelts and water bodies. So, in Hangzhou tourism city, many existing greenbelt and water bodies should be strictly protected and constructed.

Paper Details

Date Published: 8 January 2008
PDF: 8 pages
Proc. SPIE 6835, Infrared Materials, Devices, and Applications, 68351B (8 January 2008); doi: 10.1117/12.754112
Show Author Affiliations
Qian Cheng, Zhejiang Gongshang Univ. (China)
Xiuju Wu, Zhejiang Gongshang Univ. (China)

Published in SPIE Proceedings Vol. 6835:
Infrared Materials, Devices, and Applications
Yi Cai; Haimei Gong; Jean-Pierre Chatard, Editor(s)

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