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[会议论文]

Multiscaling properties of drought conditions in China

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author:

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

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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 Fractals Time measurement Watersheds

Community:

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

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    [luo, ming]department of geography and resource management, chinese university of hong kong, hong kong, hong kong;;[luo, ming]national engineering research center of geospatial information technology, fuzhou university, fuzhou, fujian; 350002, china;;[luo, ming]institute of environment, energy and sustainability, chinese university of hong kong, hong kong, hong kong

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Year: 2014

Language: English

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SCOPUS Cited Count: 1

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