Double rank-ordering technique of ROMA (Rank-Ordered Multifractal Analysis) for multifractal fluctuations featuring multiple regimes of scales

S. W.Y. Tam, T. Chang

研究成果: Article同行評審

5 引文 斯高帕斯(Scopus)

摘要

Rank-Ordered Multifractal Analysis (ROMA), a technique capable of deciphering the multifractal characteristics of intermittent fluctuations, was originally applied to the results of a magnetohydrodynamic (MHD) simulation. Application of ROMA to measured fluctuations in the auroral zone, due to the dominant physical effects changing from kinetic to MHD as the scale increases, requires an additional level of rank-ordering in order to divide the domain of scales into regimes. An algorithm for the additional step in this double rank-ordering technique is discussed, and is demonstrated in the application to the electric field fluctuations in the auroral zone as an example. As a result of the double rank-ordering, ROMA is able to take into account the nonlinear crossover behavior characterized by the multiple regimes of time scales by providing a scaling variable and a scaling function that are global to all the time scales.

原文English
頁(從 - 到)405-414
頁數10
期刊Nonlinear Processes in Geophysics
18
發行號3
DOIs
出版狀態Published - 2011

All Science Journal Classification (ASJC) codes

  • 統計與非線性物理學
  • 地球物理
  • 地球化學與岩石學

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