Computer Science – Sound
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agufmsm12a0484n&link_type=abstract
American Geophysical Union, Fall Meeting 2002, abstract #SM12A-0484
Computer Science
Sound
2736 Magnetosphere/Ionosphere Interactions, 2776 Polar Cap Phenomena, 2788 Storms And Substorms
Scientific paper
The radio plasma imager (RPI) on the IMAGE satellite uses the radio sounding technique to measure both the insitu and remote electron densities in the magnetosphere. Insitu, or local, electron densities are derived from the local plasma resonances stimulated by RPI transmitted signals while the remote densities are obtained from the observed R-X mode echo traces using an inversion technique. Analysis of RPI observations before, during and after a geomagnetic storm shows a greatly enhanced electron density during the main phase over the polar cap at radial distances up to 5.3 RE, invariant latitude above 80° and magnetic local time between 2000 and midnight. In this report a case study will be presented and qualitative and quantitative assessment of the magnitude of electron density enhancement will be discussed.
Huang Xing
Nsumei P.
Reinisch Bodo. W.
Song Paul
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