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arXiv physics/0310061physics.space-phphysics.data-an
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由WIND航天器观测的地磁指数和太阳风的长期数据集的标度

Scaling in long term data sets of geomagnetic indices and solar wind epsilon as seen by WIND spacecraft

B. Hnat, S. C. Chapman, G. Rowlands, N. W. Watkins, M. P. Freeman

摘要:

我们研究尺度波动的地磁指数(AE,AU和AL),提供了一个衡量磁层活动和磁层参数,这是一个衡量的太阳风驱动程序。广义结构函数(GSF)分析表明,波动表现出自相似缩放到约1小时的AU指数和约2小时的AL,AE和ESTA时,最极端的波动超过10个标准差被排除在外。的标度指数的GSF被发现是相似的三个AE指数,并显着不同,从EAE。这是证实了直接比较他们的重新标度的概率密度函数。

英文摘要:

We study scaling in fluctuations of the geomagnetic indices (AE, AU, and AL) that provide a measure of magnetospheric activity and of the epsilon parameter which is a measure of the solar wind driver. Generalized structure function (GSF) analysis shows that fluctuations exhibit self-similar scaling up to about 1 hour for the AU index and about 2 hours for AL, AE and epsilon when the most extreme fluctuations over 10 standard deviations are excluded. The scaling exponents of the GSF are found to be similar for the three AE indices, and to differ significantly from that of epsilon. This is corroborated by direct comparison of their rescaled probability density functions.

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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