[1]ZHANG Yu,ZHAO Wei,LONG Feng,et al.Study of Urban Heat Island Based on Landsat TM/TIRS in the Central Area of Chongqing City[J].Research of Soil and Water Conservation,2015,22(05):191-196,203.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
22
Number of periods:
2015 05
Page number:
191-196,203
Column:
Public date:
2015-10-28
- Title:
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Study of Urban Heat Island Based on Landsat TM/TIRS in the Central Area of Chongqing City
- Author(s):
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ZHANG Yu1, ZHAO Wei2, LONG Feng2, HUANG Jing2, LIU Ting2
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1. Department of Environmental and Biological Engineering, Chongqing Technology and Business University, Chongqing 400067, China;
2. School of Tourism and Land Resource, Chongqing Technology and Business University, Chongqing 400067, China
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- Keywords:
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urban heat island effect; Mono-window algorithm; Landsat TM/TIRS
- CLC:
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P463.3;TP79
- DOI:
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- Abstract:
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Landsat data from 2001 to 2013 were used to study Chongqing City urban heat island, and summer images of 2001, 2007 and 2013 were selected to calculate the surface temperature via mono-window algorithm. On this basis, temporal and spatial variations of urban heat island in Chongqing City were analyzed. The results showed that: (1) high surface temperature areas of Chongqing distributed in urban area, from the past, it distributed from one to multi points, scattered to the plots, developed the present more balanced distribution of pieces, multi center, and had continued to expand outward trend; (2) those areas covered with green vegetation and water could alleviate high-temperature in downtown, and it differed quite largely between the Yangtze River, Jialing River and land surface in temperature; (3) development of transport routes led to the development of the nearby areas of the city and counties during the 13 years, decreased the traditional high-temperature areas, shaped new high-temperature areas where the traffic route can be reached; (4) the thermal field variability index was 0.63 in 2001, was 0.49 in 2007, and had reached 0.66 in 2013, ranking Chongqing high in China. The thermal field variability index changes differently in different areas during the study time. The urban heat island should be remained where it eased or be monitored where it enhanced or added.