Physics
Scientific paper
Apr 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987jgr....92.3304b&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 92, April 1, 1987, p. 3304-3314.
Physics
4
Electron Precipitation, Low Frequencies, Ohmic Dissipation, Plasma Drift, Polar Cusps, Field Aligned Currents, Interplanetary Magnetic Fields, Ion Density (Concentration), Northern Hemisphere, Plasma Density
Scientific paper
The salient features of the instruments on board the HILAT satellite are discussed together with the results of plasma and field measurements made on December 2, 1983, when the satellite trajectory was approximately aligned with the noon-midnight meridian while crossing the northern polar cusp region. During that time, the measurements indicated an increase in scintillations of radio signals, strongly variable fluxes of precipitating low-energy electrons, and the presence of gradients in the thermal ion density. In addition, fluctuations in the east-west component of the ion drift velocities superimposed on the noon sector convection pattern, and field aligned currents were observed. The analysis of these measurements provides a unifying frame in which interrelations between the plasma drift, plasma density, and radio scintillations may be understood.
Basinska Ewa M.
Basu Sunanda
Burke William J.
Fougere Paul F.
Rich Frederick J.
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