multifractal structure of turbulence in the magnetospheric cusp

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ID: 168858
2004
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Abstract
Magnetospheric cusps are regions which are characterized by highly turbulent plasma. We have used Polar magnetic field data to study the structure of turbulence in the cusp region. The wavelet transform modulus maxima method (WTMM) has been applied to estimate the scaling exponent of the partition function and singularity spectra. Their features are similar to those found in the nonlinear multifractal systems. We have found that the scaling exponent does not allow one to conclude which intermittency model fits the experiment better. However, the singularity spectra reveal that different models can be ascribed to turbulence observed under various IMF conditions. For northward IMF conditions the turbulence is consistent with the multifractal p-model of fully developed fluid turbulence. For southward IMF experimental data agree with the model of non-fully developed Kolmogorov-like fluid turbulence.
Reference Key
yordanova2004annalesmultifractal Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;E. Yordanova;E. Yordanova;M. Grzesiak;A. W. Wernik;B. Popielawska;K. Stasiewicz
Journal journal of food measurement and characterization
Year 2004
DOI
10.5194/angeo-22-2431-2004
URL
https://www.ann-geophys.net/22/2431/2004/angeo-22-2431-2004.pdf
Keywords
cosmic physics sciencephysicsgeophysics

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