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Identification of Shrinkage and Growth Patterns of a Shrinking City in China Based on Nighttime Light Data: A Case Study of Yichun

1
School of Geographical Sciences, Northeast Normal University, Changchun 130024, China
2
Northeast Institute of Geography and Agroecology, Chines Academy of Science, Changchun 130102, China
*
Author to whom correspondence should be addressed.
Sustainability 2019, 11(24), 6906; https://doi.org/10.3390/su11246906
Received: 31 October 2019 / Revised: 2 December 2019 / Accepted: 3 December 2019 / Published: 4 December 2019
(This article belongs to the Section Sustainable Urban and Rural Development)
Urban shrinkage has become a topic of major concern to scholars of geography and urban science. However, the methods of identifying urban shrinkage and growth have mostly focused on traditional statistical methods, and studies based on nighttime light (NTL) data are rare. Here, we use the NTL data for 56 months from 2012 to 2019 obtained by the Visible Infrared Imaging Radiometer Suite (VIIRS) on board the Suomi National Polar Orbiting Partnership (NPP) to identify the shrinkage and growth patterns of Yichun in China, by calculating the slope of the NTL radiance value after denoising. At the same time, by combining high-resolution Google satellite images and traditional demographic data, we analyzed the shrinkage characteristics of Yichun. The results of the study confirmed the characteristics of partial shrinkage in China’s shrinking cities. In addition, the use of NPP-VIIRS NTL data was able to more accurately identify the urban shrinkage and growth patterns, and may also be seen to present a more objective picture of reality, thus providing a new perspective for studies of urban shrinkage. View Full-Text
Keywords: urban shrinkage; NPP-VIIRS; spatial pattern; Yichun urban shrinkage; NPP-VIIRS; spatial pattern; Yichun
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Zhou, Y.; Li, C.; Ma, Z.; Hu, S.; Zhang, J.; Liu, W. Identification of Shrinkage and Growth Patterns of a Shrinking City in China Based on Nighttime Light Data: A Case Study of Yichun. Sustainability 2019, 11, 6906.

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