Results 91 to 100 of about 221 (134)

Theoretical comments on the nature of the plasmapause

Advances in Space Research, 1986
The traditional theoretical interpretations of the observed plasmapause are compared, namely, the plasmapause as: (1) The boundary between closed flux tubes that have been in the inner magnetosphere for several days and those that have recently drifted in from the magnetotail or (2) the last closed electric equipotential.
R.A. Wolf, G.A. Mantjoukis, R.W. Spiro
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Shocks, solitons and the plasmapause

Journal of Atmospheric and Terrestrial Physics, 1976
Abstract According to existing magnetospheric models, the plasmapause is thought to be the intersection of the solar wind induced convective flow with the Earth's corotational flow ( Axford , 1969). This fluid model is intuitive and acceptable, at least for the first sight.
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The plasmapause as a VLF wave guide

Journal of Geophysical Research, 1977
The properties of the plasmapause as a VLF wave guide are studied. The guidance that occurs is a form of gradient trapping of VLF wave energy. It is shown that guiding is possible at both the inner and outer edges of the plasmapause and that more efficient guiding occurs as the plasmapause gradients become stronger.
U. S. Inan, T. F. Bell
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Plasmapause signatures in the ionosphere and magnetosphere

Journal of Geophysical Research: Space Physics, 1978
Isis 2 observations of a variety of topside ionospheric ‘signatures’ of the plasmapause are compared with simultaneously acquired equatorial electron density profiles obtained by the whistler technique. The satellite data were acquired at ∼1400‐km altitude at dusk and dawn in the sunlit northern hemisphere summer ionosphere within ∼15° longitude of the
J. C. Foster, C. G. Park, L. H. Brace, J. R. Burrows, J. H. Hoffman, E. J. Maier, J. H. Whitteker   +6 more
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Excitation of the Plasmapause at Ultralow Frequencies

Physical Review Letters, 1973
Observational evidence and the theoretical interpretation indicate that magnetic disturbances exterior to the plasmasphere boundary (within the magnetosphere) can excite damped, sinusoidal oscillations, which can be inferred as a magnetohydrodynamic surface eigenmode, at the o infer the plasma density inside the plasmapause and the plasma density ...
L. J. Lanzerotti, H. Fukunishi, A. Hasegawa, Liu Chen   +3 more
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Evidence of drift waves at the plasmapause

Journal of Geophysical Research: Space Physics, 1978
As the Hawkeye 1 spacecraft crosses the plasmapause at high altitudes (R > 3 RE), a band of electric field noise is often detected in the frequency channels from 1.7 to 178 Hz. No corresponding magnetic field noise is detected, indicating that the noise is electrostatic (or at least quasi‐electrostatic), and the electric field is polarized ...
Paul M. Kintner, Donald A. Gurnett
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Monitoring the plasmapause dynamics at LEO

2021
<p>In the past decades researchers have revealed links between a series of sub-auroral ionospheric phenomena and the plasmapause (PP) dynamics, such as the mid-latitude ionospheric trough (MIT) and the associated sub-auroral temperature enhancement (SETE), the light-ion trough (LIT), the sub-auroral ion drift (SAID) or the more intense ...
Balázs Heilig, Claudia Stolle, Jan Rauberg, Guram Kervalishvili   +3 more
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Dynamical simulations of the plasmapause and the plasmasphere

2017 XXXIInd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS), 2017
Plasmapause and plasmasphere simulations have been developed at BIRA-IASB to better understand the physical mechanisms implicated in this region of the inner magnetosphere. The simulations include convection and co-rotation and can also take into account the interchange mechanism for the formation of the plasmapause.
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Ples model in the plasmapause diagnostics

Advances in Space Research, 2002
Abstract Code PLES instantaneous mapping of ionospheric characteristics though intended for operational use in telecommunication systems appears to be a useful tool in plasmapause diagnostics. PLES allows construction of retrospective maps for specific epochs.
I. Stanislawska, H. Rothkaehl
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Interchange instability of the Earth's plasmapause

Journal of Geophysical Research: Space Physics, 1990
We reexamine the stability of low‐frequency electrostatic waves with k·B = 0 at the plasmapause, using an extension of the procedure of Richmond (1973), an approach that is based on computing individual particle motions and includes the line‐tying effect of the ionosphere.
T. S. Huang, R. A. Wolf, T. W. Hill
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