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Spatio-temporal Dynamics of Urbanization in China Using DMSP/OLS Nighttime Light Data from 1992–2013
作者姓名:XU Pengfei  LIN Muying  JIN Pingbin
作者单位:College of Tourism and City;Zhejiang Tongji Vocational College of Science and Technology;School of Earth Science
基金项目:Under the auspices of State Scholarship Fund of China Scholarship Council(No.201706320300)。
摘    要:Understanding the dynamics of urbanization is essential to the sustainable development of cities. Meanwhile the analysis of urban development can also provide scientifically and effective information for decision-making. With the long-term Defense Meteorological Satellite Program’s Operational Linescan System(DMSP/OLS) nighttime light images, a pixel level assessment of urbanization of China from 1992 to 2013 was conducted in this study, and the spatio-temporal dynamics and future trends of urban development were fully detected. The results showed that the urbanization and urban dynamics of China experienced drastic fluctuations from 1992 to 2013, especially for those in the coastal and metropolitan areas. From a regional perspective, it was found that the urban dynamics and increasing trends in North Coast China, East Coast China and South Coast China were much more stable and significant than that in other regions. Moreover, with the sustainability estimating of nighttime light dynamics, the regional agglomeration trends of urban regions were also detected. The light intensity in nearly 50% of lighted pixels may continuously decrease in the future, indicating a severe situation of urbanization within these regions. In this study, The results revealed in this study can provided a new insight in long time urbanization detecting and is thus beneficial to the better understanding of trends and dynamics of urban development.

关 键 词:Defense  Meteorological  Satellite  Program’s  Operational  Linescan  System(DMSP/OLS)nighttime  light  URBANIZATION  pixel  level  detection  spatio-temporal  dynamics  future  trends
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