Authors: Chengshu Yang*, East China Normal University - Shanghai, Bailang Yu, East China Normal University, Zuoqi Chen, East China Normal University, Wei Song, University of Louisville, Yuyu Zhou, Iowa State University, Jianping Wu, East China Normal University
Topics: Remote Sensing, Urban Geography, Geographic Information Science and Systems
Keywords: Spatial-Social Urban Development Curve; Nighttime light; NPP-VIIRS; Urban development
Session Type: Paper
Start / End Time: 1:10 PM / 2:50 PM
Room: Senate Room, Omni, West
Presentation File: No File Uploaded
The status of urban development has a close connection with the urban economy, environment, ecology and health. Spatial and social processes are the two main aspects of urban development. In this study, by means of nighttime light data with both spatial and socioeconomic information, we proposed a Spatial-Social Urban Development Curve (SSUDC) to analyze the urban development considering both aspects. The SSUDC was calculated from artificial surface ratio at 1% interval obtained from the Globeland30 land cover data and the corresponding average nighttime light radiance using a nonlinear least squares method. We generated SSUDCs of 330 prefecture-level cities in the mainland China, and the coefficients of determination (R2) of 208 cities among them are more than 0.6. The coefficients α and β of SSUDC were proved to respectively indicate the base intensity and the vitality of socioeconomic activity, and can be used to reveal the urban socioeconomic development status and functional type at both city and urban agglomeration scale. At the internal urban level, the residuals of SSUDC can imply the demand for urban physical and economic construction, and even the urban grow type together with the distribution of the artificial surface ratio.