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author:

Luo, M. (Luo, M..) [1] | Chen, C. (Chen, C..) [2] | Lin, L. (Lin, L..) [3]

Indexed by:

Scopus

Abstract:

The scaling and multifractal properties of drought conditions of different regions in China were explored by employing multifractal detrended fluctuation analysis. Results show that the long-range correlation of the drought series in northern China is stronger than that in southern China, and that scaling properties vary at different time-scales. The scaling behaviors of the drought series in all of the regions are separated by a common crossover time-scale of around 1.5 years. The three regions of north China, southwest China, and the Yangtze River basin exhibited an additional crossover at a 9-year scale. The drought time series are stationary and long-range correlated at a time-scale of 1.5 years in all the regions and at a time-scale longer than 9 years in northern China, southwest China, and the Yangtze River basin. They are however non-persistent at a 1.5-to-9-year scale. Meanwhile, the h(q) curves indicate that the drought series are multifractal. © 2014 IEEE.

Keyword:

drought conditions; multifractal detrended fluctuation analysis (MF-DFA); multiscaling; standardised precipitation evapotranspiration index (SPEI)

Community:

  • [ 1 ] [Luo, M.]National Engineering Research Center of Geospatial Information Technology, Fuzhou University, Fuzhou, Fujian, 350002, China
  • [ 2 ] [Luo, M.]Institute of Environment, Energy and Sustainability, Chinese University of Hong Kong, Hong Kong, Hong Kong
  • [ 3 ] [Luo, M.]Department of Geography and Resource Management, Chinese University of Hong Kong, Hong Kong, Hong Kong
  • [ 4 ] [Chen, C.]National Engineering Research Center of Geospatial Information Technology, Fuzhou University, Fuzhou, Fujian, 350002, China
  • [ 5 ] [Lin, L.]Department of Geography and Resource Management, Chinese University of Hong Kong, Hong Kong, Hong Kong

Reprint 's Address:

  • [Luo, M.]National Engineering Research Center of Geospatial Information Technology, Fuzhou UniversityChina

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Source :

Proceedings - 2014 22nd International Conference on Geoinformatics, Geoinformatics 2014

Year: 2014

Language: English

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ESI Highly Cited Papers on the List: 0 Unfold All

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