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Erschienen in:
2015 | OriginalPaper | Buchkapitel
Monitoring Urban Expansion and Morphology Changes of Tangshan by Using Remote Sensing
verfasst von : Lifeng Shi, Fang Liu, Zengxiang Zhang, Xiaoli Zhao
Erschienen in: Geo-Informatics in Resource Management and Sustainable Ecosystem
Verlag: Springer Berlin Heidelberg
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On the basis of multi-source satellite data on compact ratio, fractal dimension and barycentric coordinates across different periods, we analyze the spatiotemporal characteristics and morphology changes of Tangshan using geographical information system and remote sensing techniques. The speed of urban expansion slowed down from 1976 to 1996 and changed periodically from 1996 to 2013. The variation trend of the compaction index is contrary to that of the fractal dimension. The changes in the compaction index showed a downward trend, and the fluctuations were reduced after 1996. Meanwhile, the variation trend of the fractal dimension is exactly the opposite of that of the compaction index, which showed an upward trend and experienced an increase in fluctuations after 1996. The barycenter of the built-up area of Tangshan moved toward the northeast from 1976 to 2009 and turned southwest from 2009 to 2013.