Testing THEMIS wave measurements against the cold plasma theory

0459539 - ÚFA 2017 DE eng A - Abstrakt
Taubenschuss, Ulrich - Santolík, Ondřej - Contel Le, O. - Bonnell, J.
Testing THEMIS wave measurements against the cold plasma theory.
Geophysical Research Abstracts. Göttingen: European Geosciences Union, 2016. EGU2016-7903. ISSN 1607-7962.
[EGU General Assembly 2016. 17.04.2016-22.04.2016, Vienna]
Institucionální podpora: RVO:68378289
Klíčová slova: THEMIS * magnetosphere * cold plasma
Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech
http://meetingorganizer.copernicus.org/EGU2016/EGU2016-7903.pdf

The THEMIS (Time History of Events and Macroscale Interactions during Substorms) mission records a multitude
of electromagnetic waves inside Earth’s magnetosphere and provides data in the form of high-resolution electric
and magnetic waveforms. We use multi-component measurements of whistler mode waves and test them against the
theory of wave propagation in a cold plasma. The measured ratio cB/E (c is speed of light in vacuum, B is magnetic
wave amplitude, E is electric wave amplitude) is compared to the same quantity calculated from cold plasma theory
over linearized Faraday’s law. The aim of this study is to get estimates for measurement uncertainties, especially
with regard to the electric field and the cold plasma density, as well as evaluating the validity of cold plasma theory
inside Earth’s radiation belts.
Trvalý link: http://hdl.handle.net/11104/0259719