Spatial and Temporal Analysis of the Mitigating Effects of Industrial Relocation on the Surface Urban Heat Island over ChinaReportar como inadecuado


Spatial and Temporal Analysis of the Mitigating Effects of Industrial Relocation on the Surface Urban Heat Island over China


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1

Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100101, China

2

University of Chinese Academy of Sciences, Beijing 100101, China

3

Sanya Institute of Remote Sensing, Sanya 572029, China





*

Author to whom correspondence should be addressed.



Academic Editors: Bernd Resch and Wolfgang Kainz

Abstract Urbanization is typically accompanied by the relocation and reconstruction of industrial areas due to limited space and environmental requirements, particularly in the case of a capital city. Shougang Group, one of the largest steel mill operators in China, was relocated from Beijing to Hebei Province. To study the thermal environmental changes at the Shougang industrial site before and after relocation, four Landsat images from 2000, 2005, 2010 and 2016 were used to calculate the land surface temperature LST. Using the urban heat island ratio index URI, we compared the LST values for the four images of the investigated area. Following the relocation of Shougang Group, the URI values decreased from 0.55 in 2005 to 0.21 in 2016, indicating that the surface urban heat island effect in the area was greatly mitigated; we infer that this effect was related to steel production. This study shows that the use of Landsat images to assess industrial thermal pollution is feasible. Accurate and rapid extraction of thermal pollution data by remote sensing offers great potential for the management of industrial pollution sources and distribution, and for technical support in urban planning departments. View Full-Text

Keywords: industrial relocation; remote sensing; thermal pollution; urban heat island; urban planning industrial relocation; remote sensing; thermal pollution; urban heat island; urban planning





Autor: Linlin Zhang 1,2,3, Qingyan Meng 1,3,* , Zhenhui Sun 1,2,3 and Yunxiao Sun 1,2,3

Fuente: http://mdpi.com/



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