Deducing Magnetospheric Structure From ISTP Spacecraft Observations of
  Enhanced Escaping Terrestrial Continuum Radiation and Kilometric
  Continuum Radiation

Anderson, R. R.
Matsumoto, H.
Hashimoto,  K.
Kojima, H.
Nagano, I.
Yagitani, S.
Takano, H.
Kasaba, Y.
Carpenter, D. L.
Kaiser, M. L.
Bougeret, J.

Enhanced escaping terrestrial continuum radiation and kilometric continuum
radiation are believed to be due to injected electrons from the plasmasheet
drifting around the earth eastward and impinging on portions of the
plasmasphere and magnetosphere where steep density gradients occur.
Electrostatic emissions at the local electron plasma frequency are mode
converted to electromagnetic radiation that propagates out unless or until
it encounters a region more dense than where it was generated. The GEOTAIL
and POLAR Plasma Wave Instruments (PWIs) and the WIND Radio Science Experiment
(WAVES) on the ISTP spacecraft primarily when near the Earth have frequently
detected these emissions that contain much narrowband filamentary and fine
structure. Occasionally narrowband filaments lasting many hours have been
observed. By comparing the appearance of these emissions from two or more
spacecraft we attempt to deduce remotely the structure of the plasmasphere
and magnetosphere. Some of the structure observed we believe can be explained
by the bulges, ducts, and irregularities known to exist in the plasmasphere.
We will compare our deduced structures with those previously detected on
CRRES and those now detected by IMAGE.

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Submitted to the Spring 2001 AGU Meeting, Boston, Massachusetts