Results 101 to 110 of about 221 (134)
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Ballooning mode instability at the plasmapause
Journal of Geophysical Research: Space Physics, 1990The ballooning mode instability, which can excite hydromagnetic waves at the plasmapause, is studied in the presence of azimuthal plasma flows induced during geomagnetically disturbed periods. A general sufficient criterion for the ballooning mode stability is derived as δW ≥ 0 (where δW represents the change in the potential energy) which involves the
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Advances in Space Research, 1996
Abstract Narrow-band plasmapause hiss around 5 kHz was often observed in the vicinity of the plasmapause invariant latitude by ISIS-1 and ISIS-2. Frequency-time spectra of the hiss are similar to those of ground narrow-band 5 kHz hiss observed at mid- and low-latitudes. Statistically, the occurrence rate of the narrow-band plasmapause hiss is maximum
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Abstract Narrow-band plasmapause hiss around 5 kHz was often observed in the vicinity of the plasmapause invariant latitude by ISIS-1 and ISIS-2. Frequency-time spectra of the hiss are similar to those of ground narrow-band 5 kHz hiss observed at mid- and low-latitudes. Statistically, the occurrence rate of the narrow-band plasmapause hiss is maximum
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Observations of the plasmapause from OGO 5
Journal of Geophysical Research, 1970Plasmapause observations by ion spectrometer aboard OGO-5 vehicle for early orbits, obtaining O, He and H ion concentration profiles for geomagnetic ...
K. K. Harris +2 more
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Recent Research on the Magnetospheric Plasmapause
Radio Science, 1968The plasmapause is a three‐dimensional field aligned boundary that divides the closed field‐line portion of the earth's magnetosphere into two physically distinct regions. The boundary is asymmetric, usually exhibiting a minimum geocentric range near dawn and a maximum near dusk under conditions of moderate but steady geomagnetic agitation (Kp = 2 − 4).
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Hydromagnetic stability of the plasmapause.
1970Massachusetts Institute of Technology. Dept. of Earth and Planetary Sciences Thesis. 1970. Ph.D. ; Microfiche copy also available in Science Library. ; Vita. ; Bibliography: leaves 201-206. ; Ph.D.
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The ‘Roche-Limit’ of ionospheric plasma and the formation of the plasmapause
Planetary and Space Science, 1974Abstract The plasmapause position is determined by the innermost equipotential surface which is tangent to the ‘Roche-Limit’ surface of the ionospheric plasma filling the magnetosphere. When the thermal particles corotate with the Earth's angular velocity, the ‘Roche-Limit’ equatorial distance is L c =5.78 [ R E ].
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Snake-based technique for plasmapause tracking
Proceedings of the 17th International Conference on Pattern Recognition, 2004. ICPR 2004., 2004Ram M. Kandimalla +2 more
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The new plasmapause dataset based on Cluster
We present a new method with a Graphical User Interface (GUI), allowing to inspect 15 years of Cluster mission (2002-2017) to derive plasmapause positions (PP).The PP are deduced from electron density data derived from WHISPER relaxation sounder wave measurements, which is limited up to around 150 cm-3.It is important to note that our approach allows ...Mario Bandić +5 more
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