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author:

Luo, Ming (Luo, Ming.) [1] | Chen, Chongcheng (Chen, Chongcheng.) [2] (Scholars:陈崇成) | Lin, Lijie (Lin, Lijie.) [3]

Indexed by:

CPCI-S

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.

Keyword:

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

Community:

  • [ 1 ] [Luo, Ming]Fuzhou Univ, Natl Engn Res Ctr Geospatial Informat Technol, Fuzhou 350002, Fujian, Peoples R China
  • [ 2 ] [Chen, Chongcheng]Fuzhou Univ, Natl Engn Res Ctr Geospatial Informat Technol, Fuzhou 350002, Fujian, Peoples R China
  • [ 3 ] [Luo, Ming]Chinese Univ Hong Kong, Inst Environm Energy & Sustainabil, Hong Kong, Hong Kong, Peoples R China
  • [ 4 ] [Luo, Ming]Chinese Univ Hong Kong, Dept Geog & Resource Management, Hong Kong, Hong Kong, Peoples R China
  • [ 5 ] [Lin, Lijie]Chinese Univ Hong Kong, Dept Geog & Resource Management, Hong Kong, Hong Kong, Peoples R China

Reprint 's Address:

  • 罗明

    [Luo, Ming]Fuzhou Univ, Natl Engn Res Ctr Geospatial Informat Technol, Fuzhou 350002, Fujian, Peoples R China

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Source :

2014 22ND INTERNATIONAL CONFERENCE ON GEOINFORMATICS (GEOINFORMATICS 2014)

ISSN: 2161-024X

Year: 2014

Language: English

Cited Count:

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SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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