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Mapping and Evaluating the Urbanization Process in Northeast China Using DMSP/OLS Nighttime Light Data

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Title: Mapping and Evaluating the Urbanization Process in Northeast China Using DMSP/OLS Nighttime Light Data
Authors: Yi, Kunpeng Browse this author
Tani, Hiroshi Browse this author →KAKEN DB
Li, Qiang Browse this author
Zhang, Jiquan Browse this author
Guo, Meng Browse this author
Bao, Yulong Browse this author
Wang, Xiufeng Browse this author →KAKEN DB
Li, Jing Browse this author
Keywords: Urban light index ULI
urban light space
Northeast China
unit circle model
Issue Date: Feb-2014
Publisher: MDPI Ag
Journal Title: Sensors
Volume: 14
Issue: 2
Start Page: 3207
End Page: 3226
Publisher DOI: 10.3390/s140203207
Abstract: In this paper, an Urban Light Index (ULI) is constructed to facilitate analysis and quantitative evaluation of the process of urbanization and expansion rate by using DMSP/OLS Nighttime Light Data during the years from 1992 to 2010. A unit circle urbanization evaluation model is established to perform a comprehensive analysis of the urbanization process of 34 prefecture-level cities in Northeast China. Furthermore, the concept of urban light space is put forward. In this study, urban light space is divided into four types: the core urban area, the transition zone between urban and suburban areas, suburban area and fluorescent space. Proceeding from the temporal and spatial variation of the four types of light space, the pattern of morphologic change and space-time evolution of the four principal cities in Northeast China (Harbin, Changchun, Shenyang, Dalian) is analyzed and given particular attention. Through a correlation analysis between ULI and the traditional urbanization indexes (urban population, proportion of the secondary and tertiary industries in the regional GDP and the built-up area), the advantages and disadvantages as well as the feasibility of using the ULI in the study of urbanization are evaluated. The research results show that ULI has a strong correlation with urban built-up area (R-2 = 0.8277). The morphologic change and history of the evolving urban light space can truly reflect the characteristics of urban sprawl. The results also indicate that DMSP/OLS Nighttime Light Data is applicable for extracting urban space information and has strong potential to urbanization research.
Type: article
Appears in Collections:農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 谷 宏

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