Results 31 to 40 of about 2,907 (207)
Investigation of EMIC wave scattering as the cause for the BARREL 17 January 2013 relativistic electron precipitation event: A quantitative comparison of simulation with observations [PDF]
, 2014 Electromagnetic ion cyclotron (EMIC) waves were observed at multiple observatory locations for several hours on 17 January 2013. During the wave activity period, a duskside relativistic electron precipitation (REP) event was observed by one of the ...
Albert +64 more
core +2 more sources
Time-dependent plasmapause motion [PDF]
Journal of Geophysical Research, 1971 Time dependent plasmapause motion after increase and decrease in magnetic activity based on analytical model of plasma ...
openaire +1 more source
New plasmapause model derived from CHAMP field-aligned current signatures [PDF]
Annales Geophysicae, 2013 We introduce a new model for the plasmapause location in the equatorial plane. The determination of the L-shell bounding the plasmasphere is based on magnetic field observations made by the CHAMP satellite in the topside ionosphere.
B. Heilig, B. Heilig, H. Lühr
doaj +1 more source
Empirical plasmapause models from magnetic indices [PDF]
Geophysical Research Letters, 2003 We use a database of CRRES in situ observations of plasmapause crossings to build empirical models of the plasmapause location as a function of geomagnetic indices. Previous models used the maximum value in Kp during the hours to days leading up to the plasmapause crossing.
O'Brien, T.P., Moldwin, M.B.
openaire +2 more sources
Plasmapause, Convection, and Reconnection [PDF]
Journal of Geophysical Research: Space Physics, 2019 AbstractBeing one of the first generation of space scientists who entered this field right after the space became accessible to in situ observations, I had good luck of addressing some of the basic questions in this field from the early years of my carrier. These are development of global convection in the magnetosphere when the interplanetary magnetic
openaire +1 more source
Journal of Geophysical Research: Space Physics, 2020 AbstractRecent studies based on CLUSTER, CRRES, and especially on THEMIS satellite data have revealed the statistical behavior of the global plasmapause such as eastward azimuthal plasmapause propagation and radial plasmapause motion between 21 and 07 magnetic local times (MLTs) most likely at postmidnight.
Mario Bandić +2 more
openaire +3 more sources
Saturn's Plasmapause: Signature of Magnetospheric Dynamics [PDF]
Journal of Geophysical Research: Space Physics, 2019 AbstractWe explore the paradigm that Saturn's plasmapause marks the boundary between the magnetic flux tubes that have been circulating around the planet for some time, accumulating a dense load of Enceladus‐sourced material, and those that have recently undergone tail reconnection, shedding the bulk of the cold plasma and retaining a more tenuous ...
M.F. Thomsen, A.J. Coates
openaire +2 more sources
An auroral westward flow channel (AWFC) and its relationship to field-aligned current, ring current, and plasmapause location determined using multiple spacecraft observations [PDF]
Annales Geophysicae, 2007 An auroral westward flow channel (AWFC) is a latitudinally narrow channel of unstable F-region plasma with intense westward drift in the dusk-to-midnight sector ionosphere. AWFCs tend to overlap the equatorward edge of the auroral oval, and their life
M. L. Parkinson +5 more
doaj +1 more source
A machine-learning-based electron density (MLED) model in the inner magnetosphere
Earth and Planetary Physics, 2022 Plasma density is an important factor in determining wave-particle interactions in the magnetosphere. We develop a machine-learning-based electron density (MLED) model in the inner magnetosphere using electron density data from Van Allen Probes between ...
QingHua Zhou +7 more
doaj +1 more source
Polar observations of electron density distribution in the Earth’s magnetosphere. 2. Density profiles [PDF]
Annales Geophysicae, 2002 Using spacecraft potential measurements of the Polar electric field experiment, we investigate electron density variations of key plasma regions within the magnetosphere, including the polar cap, cusp, trough, plasmapause, and auroral zone.
H. Laakso +3 more
doaj +1 more source