Publication Date:
2020-02-06
Description:
Turbulence, intermittency, and self-organized structures in space plasmas can be
investigated by using a multifractal formalism mostly based on the canonical structure function
analysis with fixed constraints about stationarity, linearity, and scales. Here, the Empirical
Mode Decomposition (EMD) method is firstly used to investigate timescale fluctuations of the
solar wind magnetic field components; then, by exploiting the local properties of fluctuations,
the structure function analysis is used to gain insights into the scaling properties of both inertial and
kinetic/dissipative ranges. Results show that while the inertial range dynamics can be described in a
multifractal framework, characterizing an unstable fixed point of the system, the kinetic/dissipative
range dynamics is well described by using a monofractal approach, because it is a stable fixed point
of the system, unless it has a higher degree of complexity and chaos.
Description:
Published
Description:
id 320
Description:
1A. Geomagnetismo e Paleomagnetismo
Description:
JCR Journal
Keywords:
Solar wind
;
scaling properties
;
fractals
;
chaos
;
05.07. Space and Planetary sciences
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
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