ROMA (Rank-Ordered Multifractal Analyses) of intermittency in space plasmas – a brief tutorial review

T. Chang, C. C. Wu, J. Podesta, M. Echim, H. Lamy, S. W. Y. Tam
2010 Nonlinear Processes in Geophysics  
Intermittent fluctuations are the consequence of the dynamic interactions of multiple coherent or pseudocoherent structures of varied sizes in the stochastic media (Chang, 1999) . We briefly review here a recently developed technique, the Rank-Ordered Multifractal Analysis (ROMA), which is both physically explicable and quantitatively accurate in deciphering the multifractal characteristics of such intermittent structures . The utility of the method is demonstrated using results obtained from
more » ... rge-scale 2-D MHD simulations as well as insitu observations of magnetic field fluctuations from the interplanetary and magnetospheric cusp regions, and the broadband electric field oscillations from the auroral zone.
doi:10.5194/npg-17-545-2010 fatcat:amhotqbug5gpdjpmmqzev2axim