Plasma sheet dynamics deduced from ISEE-1 and -2 energetic particle flux data

Details Plasma sheet dynamics deduced from ISEE-1 and -2 energetic particle flux data Plasma sheet dynamics deduced from ISEE-1 and -2 energetic particle flux data

Sep 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984esasp.217..187d&link_type=abstract

In ESA Achievements of the Intern. Magnetospheric Study (IMS) p 187-191 (SEE N85-24544 14-46)

Mathematics

Current Sheets, International Sun Earth Explorer 1, International Sun Earth Explorer 2, Magnetic Storms, Magnetoplasmadynamics, Particle Flux Density, Plasma Currents, Geomagnetic Tail, Mathematical Models, Spatial Distribution

Scientific paper

In order to investigate plasmasheet dynamics during substorms, three satellite yr of ISEE 1 and 2 energetic particle flux data were analyzed statistically. Results show that flux dropouts can be observed anywhere in the plasma sheet, independently of the satellite's geocentric distance, magnetic local time, and estimated distance to the neutral sheet. The dropouts can be observed for practically any combination of the AE index value and the satellite's estimated distance of the neutral sheet, which suggests that the plasma sheet is dynamic even during weak substorms. In substorms during which the satellites, though situated in the plasma sheet, did not detect any flux dropouts, the spatial distribution is found to be comparable to that of the flux dropout events. Predictions of plasma sheet thinning models are compared to the experimental results and it is concluded that neither model can account for all the observations.

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