Study of electric field fluctuations using the intercosmos-Bulgaria-1300 satellite data

Analysis of electric field and particle precipitating flux data measured by the Intercosmos- Bulgaria-1300 satellite was performed. It was found that the power spectra of the upper ionosphere electrostatic field fluctuations exhibit a power law dependence with an exponent close to sol−5 3 , similar...

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Bibliographic Details
Published in:Advances in space research 2003-01, Vol.31 (5), p.1425-1430
Main Authors: Stepanova, M.V, Antonova, E.E, Labbé, R, Stanev, G, Bankov, N, Vucina, T, Teltsov, M.V, Isaev, N.V
Format: Article
Language:English
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Summary:Analysis of electric field and particle precipitating flux data measured by the Intercosmos- Bulgaria-1300 satellite was performed. It was found that the power spectra of the upper ionosphere electrostatic field fluctuations exhibit a power law dependence with an exponent close to sol−5 3 , similar to the Kolmogorov's spectral distribution. A field-aligned potential drop between the magnetosphere and the ionosphere was estimated using the electron and ion precipitating fluxes data, which allowed to reconstruct large-scale fluctuations of electrostatic field in the magnetosphere. It was found that the spectra of fluctuations of the electrostatic field in the magnetosphere differ significantly from the ionospheric spectra, having a weaker dependence on k. This agrees well with the results directly obtained by Weimer at al. using the Dynamics Explorer 1 and 2 electric field data. It reveals a possibility to estimate the large-scale features of the magnetospheric electric field spectra by using solely the date from low-altitude satellites.
ISSN:0273-1177
1879-1948
DOI:10.1016/S0273-1177(03)00010-3