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| Titel |
Turbulence in magnetosheath for MMS observation based on the k-filtering method |
| VerfasserIn |
Ying Zhang, Aimin Du |
| Konferenz |
EGU General Assembly 2017
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 19 (2017) |
| Datensatznummer |
250150528
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| Publikation (Nr.) |
 EGU/EGU2017-15000.pdf |
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| Zusammenfassung |
| Based on the measurements of plasma and fields made by MMS satellite, we studies the turbulences in the magnetosheath, particularly focusing on the ion kinetic scale fluctuations. The k-filtering method is developed for multipoint measurements, which allows us to determine locally the magnetic field energy distribution of a turbulence in space plasma. Given the frequency and the wave vector, the method provides a solution in the maximum likelihood sense. We have conducted the dispersion relation analysis using k-filtering method and compared the results with theoretical prediction. Combining the results of electromagnetic polarization and the relationship between density fluctuations and magnetic fluctuation, the wave mode is identified comprehensively. |
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