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Plasmasphere model


CCMC Services available for Plasmasphere
Request a Run

Model Developer(s)
Viviane Pierrard
Belgian Institute for Space Aeronomy

Model Description
This dynamic plasmasphere model provides a three dimensional dynamic kinetic model of the plasmasphere (Journal Geophys. Res., 113, A10209,doi: 10.1029/2008ja013060, 2008). The two-dimensional plasmapause locationis shown by dynamic simulations in terms of radial distance (r) and magnetic local time (MLT). The core of the plasmasphere is obtained from the kinetic exospheric approach assuming a kappa velocity distribution function for the particles. The relative abundance of trapped particles is constrained in such way that the density profiles correspond to ISEE observations in the geomagnetic equatorial plane. The position of the plasmapause is determined by the interchange instability mechanism using the convection electric field model E5D. It is a function of the level of geomagnetic activity level index Kp observed during the date given as input and 24 hours before.

Model Input
As input, you have to give the Kp values that have been observed during the date of interest and the day before (and the day after for the visualization movies).

Model Output
As output, you obtain traject.dat (and fkp.dat) that is read by anim2.pro (an IDL routine) to give the movies. When the kp index is equal to zero, no plasmapause position is given during this period.

References and relevant publications
Pierrard, V., and K. Stegen (2008), A three-dimensional dynamic kinetic model of the plasmasphere, J. Geophys. Res., 113, A10209, doi:10.1029/2008JA013060.

Pierrard, V., J. Goldstein, N. Andre, V. K. Jordanova, G. A. Kotova, J. F. Lemaire, M. W. Liemohn, H. Matsui (2009), Recent progress in physics-based models of the plasmasphere, Space Sci. Rev., 145, 193-229.

Pierrard, V., and J. Cabrera (2006), Dynamical simulations of plasmapause deformations, Space Sci. Rev., 122, 119-126.

Relevant links
Space Weather Portal

CCMC Contact(s)

301-286-0111

Developer Contact(s)

National Aeronautics and Space Administration Air Force Materiel Command Air Force Office of Scientific Research Air Force Research Laboratory Air Force Weather Agency NOAA Space Environment Center National Science Foundation Office of Naval Research

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