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arXiv 1105.4763physics.space-ph
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在magnetic storms期间太阳风和全球magnetosphere的低维性和可预报性

Low-dimensionality and predictability of solar wind and global magnetosphere during magnetic storms

Tatjana Zivkovic, Kristoffer Rypdal

摘要:

风暴指数SYM-H、太阳风速度v和行星际磁场Bz在平静期没有显示低维动力学特征,但时间序列中的确定性检验表明,SYM-H在风暴期间表现出显著的低维分量,这表明在磁暴期间发生了自组织。尽管我们的分析没有产生明显的变化,在磁暴期间的太阳风参数的确定性,有显着增强的可预测性和指数测量持久性。因此,磁暴发生之前,太阳风动态的持续性通常会增强,而磁层对太阳风的响应也会增强。

英文摘要:

The storm index SYM-H, the solar wind velocity v, and interplanetary magnetic field Bz show no signatures of low-dimensional dynamics in quiet periods, but tests for determinism in the time series indicate that SYM-H exhibits a significant low-dimensional component during storm time, suggesting that self-organization takes place during magnetic storms. Even though our analysis yields no discernible change in determinism during magnetic storms for the solar wind parameters, there are significant enhancement of the predictability and exponents measuring persistence. Thus, magnetic storms are typically preceded by an increase in the persistence of the solar wind dynamics, and this increase is also present in the magnetospheric response to the solar wind.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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