Physics – Plasma Physics
Scientific paper
Mar 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3205109t&link_type=abstract
Geophysical Research Letters, Volume 32, Issue 5, CiteID L05109
Physics
Plasma Physics
17
Ionosphere: Auroral Ionosphere (2704), Ionosphere: Electric Fields (2712), Space Plasma Physics: Turbulence (4490)
Scientific paper
We perform intermittency analyses on the electric field data obtained by the SIERRA sounding rocket in the auroral zone. The electric field fluctuations are broadband, covering the extremely low-frequency range with a power-law relation, similar to the type of fluctuations commonly observed at various altitudes of the auroral region. Our preliminary analyses of the data based on the technique of probability distribution functions indicate that the electric field fluctuations are intermittent in the spacecraft frame. Using the methods of wavelet analyses and local intermittency measures, we determine the degree of intermittency of the fluctuations at various scales. It is found that the electric field fluctuations are more intermittent at smaller scales.
Chang Tom
Kintner Paul M.
Klatt Eric
Tam Sunny W. Y.
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