Results 21 to 30 of about 2,907 (207)

Whistler propagation in the plasmapause [PDF]

open access: yesJournal of Geophysical Research: Space Physics, 2013
Variations in plasma density and magnetic field have a strong effect on the propagation of very low frequency waves in the whistler mode. Numerous studies have established that field‐aligned density irregularities (sometimes called ducts) symmetrical relative their axis can effectively guide whistlers along the ambient magnetic field. In this paper, we
J.R. Woodroffe, A.V. Streltsov
openaire   +1 more source

Proposal for an ionosphere/plasmasphere monitoring system [PDF]

open access: yesAnnales Geophysicae, 1994
A space-based satellite system suited for long-term monitoring of the Earth's ionosphere/plasmasphere systems is proposed. The monitoring system consists of a network of radio beacon satellites capable of measuring the ionospheric and plasmaspheric ...
N. Jakowski, H.-D. Bettac
doaj   +1 more source

The trapping of equatorial magnetosonic waves in the Earth’s outer plasmasphere [PDF]

open access: yes, 2014
We investigate the excitation and propagation of equatorial magnetosonic waves observed by the Van Allen Probes and describe evidence for a trapping mechanism for magnetosonic waves in the Earth\u27s plasmasphere.
Chen, L.   +9 more
core   +2 more sources

Dynamical Simulations of Plasmapause Deformations [PDF]

open access: yesSpace Science Reviews, 2006
Dynamical simulations have been developed at IASB-BIRA to model the deformations of the plasmasphere during geomagnetic substorms and other variations in the level of geomagnetic activity. The simulations are based on the mechanism of plasma instability and use the empirical Kp-dependent electric field E5D.
Viviane Pierrard, Juan Cabrera
openaire   +1 more source

Evaluating the performance of empirical models of total electron density and whistler-mode wave amplitude in the Earth’s inner magnetosphere

open access: yesFrontiers in Astronomy and Space Sciences, 2023
Empirical models have been previously developed using the large dataset of satellite observations to obtain the global distributions of total electron density and whistler-mode wave power, which are important in modeling radiation belt dynamics.
Qianli Ma   +7 more
doaj   +1 more source

The relationship between plasmapause, solar wind and geomagnetic activity between 2007 and 2011 [PDF]

open access: yesAnnales Geophysicae, 2015
Taking advantage of the Cluster satellite mission and especially the observations made by the instrument WHISPER to deduce the electron number density along the orbit of the satellites, we studied the relationships between the plasmapause positions ...
G. Verbanac   +6 more
doaj   +1 more source

Low-altitude measurements of 2–6 MeV electron trapping lifetimes at 1.5 ≤ L ≤ 2.5 [PDF]

open access: yes, 2007
During the Halloween Storm period (October–November 2003), a new Van Allen belt electron population was powerfully accelerated. The inner belt of electrons formed in this process decayed over a period of days to years. We have examined quantitatively the
Baker, D.N.   +4 more
core   +2 more sources

The distribution of plasmaspheric hiss wave power with respect to plasmapause location

open access: yesGeophysical Research Letters, 2016
In this work, Van Allen Probes data are used to derive terrestrial plasmaspheric hiss wave power distributions organized by (1) distance away from the plasmapause and (2) plasmapause distance from Earth.
David M. Malaspina   +7 more
doaj   +1 more source

Comparisons between EUV/IMAGE observations and numerical simulations of the plasmapause formation [PDF]

open access: yesAnnales Geophysicae, 2005
Simulations of plasmapause formation described in Pierrard and Lemaire (2004) predict the shape and equatorial distance of the plasmapause as a function of the geomagnetic activity index Kp.
V. Pierrard, J. Cabrera
doaj   +1 more source

Alfvén waves in the magnetosphere generated by shock wave/plasmapause interaction

open access: yesSolar-Terrestrial Physics, 2019
We study Alfvén waves generated in the magnetosphere during the passage of an interplanetary shock wave. After shock wave passage, the oscillations with typical Alfvén wave dispersion have been detected in spacecraft observations inside the magnetosphere.
Leonovich A.S.   +3 more
doaj   +1 more source

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