IMAGE/RPI Electron-Density Determinations in Various Magnetospheric Domains

Computer Science – Sound

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6984 Waves In Plasma, 2730 Magnetosphere: Inner, 2731 Magnetosphere: Outer, 2768 Plasmasphere

Scientific paper

The Radio Plasma Imager (RPI) on the Imager for Magnetopause-to-Aurora Global Exploration (IMAGE) satellite has a remote-measuring capability that leads to large-scale descriptions of the magnetospheric electron density Ne (see, e.g., Reinisch et al. [2004]). It also has accurate local Ne measuring capability based on sounder-stimulated plasma resonances [Benson et al., 2003]. Here we will only discuss the latter capability. We will illustrate how it can be used to determine the local Ne as IMAGE traverses magnetospheric domains ranging from deep within the plasmasphere to near, and even beyond, the magnetopause. The spectrum of sounder-stimulated plasma resonances can vary considerably in the different regions. In some cases, the identifications of the resonances are aided by the reception of emissions of magnetospheric and solar origin, and visa versa. Benson, R. F., V. A. Osherovich, J. Fainberg, and B. W. Reinisch, Classification of IMAGE/RPI-stimulated plasma resonances for the accurate determination of magnetospheric electron-density and magnetic field values, J. Geophys. Res., 108(A5), 1207, doi:10.1029/2002JA009589, 2003. Reinisch, B. W., X. Huang, P. Song, J. L. Green, S. F. Fung, V. M. Vasyliunas, D. L. Gallagher, and B. R. Sandel, Plasmaspheric mass loss and refilling as a result of a magnetic storm, J. Geophys. Res., 109, A01202, doi:10.1029/2003JA009948, 2004.

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