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A Wave-Spectrum Analysis of Urban Population Density : Entropy, Fractal, and Spatial Localization
Author
Source
Discrete Dynamics in Nature and Society
Issue
Vol. 2008, Issue 2008 (31 Dec. 2008), pp.1-22, 22 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2008-10-16
Country of Publication
Egypt
No. of Pages
22
Main Subjects
Abstract EN
The method of spectral analysis is employed to research the spatial dynamics of urban population distribution.
First of all, the negative exponential model is derived in a new way by using an entropy-maximizing idea.
Then an approximate scaling relation between wave number and spectral density is derived by Fourier transform of the negative exponential model.
The theoretical results suggest the locality of urban population activities.
So the principle of entropy maximization can be utilized to interpret the locality and localization of urban morphology.
The wave-spectrum model is applied to the city in the real world, Hangzhou, China, and spectral exponents can give the dimension values of the fractal lines of urban population profiles.
The changing trend of the fractal dimension does reflect the localization of urban population growth and diffusion.
This research on spatial dynamics of urban evolvement is significant for modeling spatial complexity and simulating spatial complication of city systems by cellular automata.
American Psychological Association (APA)
Chen, Yanguang. 2008. A Wave-Spectrum Analysis of Urban Population Density : Entropy, Fractal, and Spatial Localization. Discrete Dynamics in Nature and Society،Vol. 2008, no. 2008, pp.1-22.
https://search.emarefa.net/detail/BIM-493920
Modern Language Association (MLA)
Chen, Yanguang. A Wave-Spectrum Analysis of Urban Population Density : Entropy, Fractal, and Spatial Localization. Discrete Dynamics in Nature and Society No. 2008 (2008), pp.1-22.
https://search.emarefa.net/detail/BIM-493920
American Medical Association (AMA)
Chen, Yanguang. A Wave-Spectrum Analysis of Urban Population Density : Entropy, Fractal, and Spatial Localization. Discrete Dynamics in Nature and Society. 2008. Vol. 2008, no. 2008, pp.1-22.
https://search.emarefa.net/detail/BIM-493920
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-493920