论文标题

部分可观测时空混沌系统的无模型预测

Magneto-inertial range dominated by magnetic helicity in space plasmas

论文作者

Bershadskii, A.

论文摘要

已经使用数值模拟,实验室测量,太阳能,太阳风,地球和行星的磁层观测值(航天器测量值)以及全球磁性观测网络的结果以及全球磁性观测网络研究了以磁性螺旋度为主的磁惯性范围。将光谱数据与基于Kolmogorov-Iroshnikov现象学框架中的分布式混乱概念的理论结果进行了比较。 The transition from magnetohydrodynamics to kinetics in the electron and Hall magnetohydrodynamics, and in a fully kinetic 3D approach, as well as in the solar wind, solar photosphere, and at the special events (reconnections, Kelvin-Helmholtz instability, isolated flux tube interchanges, etc.) in the magnetosphere of Earth, Saturn, Jupiter, and Mercury has been studied使用上述数据。尽管物理参数和尺度上存在很大差异,但数值模拟的结果仍与磁持续范围概念框架中的观察数据定量吻合。在这种情况下,在电离层,磁层和太阳风的影响下,地球表面的磁场的时间变异性也进行了简要讨论。

Magneto-inertial range dominated by magnetic helicity has been studied using results of numerical simulations, laboratory measurements, solar, solar wind, the Earth's and planets' magnetosphere observations (spacecraft measurements), and the global magnetic observatory network. The spectral data have been compared with the theoretical results based on the distributed chaos notion in the frames of the Kolmogorov-Iroshnikov phenomenology. The transition from magnetohydrodynamics to kinetics in the electron and Hall magnetohydrodynamics, and in a fully kinetic 3D approach, as well as in the solar wind, solar photosphere, and at the special events (reconnections, Kelvin-Helmholtz instability, isolated flux tube interchanges, etc.) in the magnetosphere of Earth, Saturn, Jupiter, and Mercury has been studied using the above-mentioned data. Despite the considerable differences in the physical parameters and scales, the results of numerical simulations are in quantitative agreement with the observational data in the frames of the magneto-inertial range notion. Temporal variability of the magnetic field at Earth's surface under the influence of the ionosphere, magnetosphere, and solar wind has been also briefly discussed in this context.

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