ROMA (Rank-Ordered Multifractal Analyses) of intermittency in space plasmas – a brief tutorial review
| Autor: | T. Chang, C. C. Wu, J. Podesta, M. Echim, H. Lamy, S. W. Y. Tam |
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| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: | |
| Zdroj: | Nonlinear Processes in Geophysics, Vol 17, Iss 5, Pp 545-551 (2010) |
| Druh dokumentu: | article |
| ISSN: | 1023-5809 1607-7946 |
| DOI: | 10.5194/npg-17-545-2010 |
| Popis: | Intermittent fluctuations are the consequence of the dynamic interactions of multiple coherent or pseudo-coherent 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 (Chang and Wu, 2008). The utility of the method is demonstrated using results obtained from large-scale 2-D MHD simulations as well as in-situ observations of magnetic field fluctuations from the interplanetary and magnetospheric cusp regions, and the broadband electric field oscillations from the auroral zone. |
| Databáze: | Directory of Open Access Journals |
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