Results 1 to 10 of about 525 (138)

Combined model of topside ionosphere and plasmasphere derived from radio-occultation and Van Allen Probes data [PDF]

Scientific Reports, 2022
In the last years, electron density profile functions characterized by a linear dependence on the scale height showed good results when approximating the topside ionosphere. The performance above 800 km, however, is not yet well investigated.
Fabricio S. Prol, Artem G. Smirnov, M. Mainul Hoque, Yuri Y. Shprits   +3 more
doaj   +2 more sources

State studies of Earth's plasmasphere

地球与行星物理论评, 2023
As an important part of the inner magnetosphere, the Earth's plasmasphere plays a vital role in linking the occurrence and development of space weather processes.
Jingtian Lü, Xiaoxin Zhang, Fei He, Cong Huang   +3 more
doaj   +1 more source

The effect of disturbed-time electric fields on the inner plasmasphere [PDF]

Annales Geophysicae, 1994
Results from a mathematical model provide a description of the mid-latitude, low L-shell ionosphere and plasmasphere. Variations in the composition and dynamics of the plasmasphere and changes in the nature of the coupling between the plasmasphere and
H. F. Balmforth, R. J. Moffett, A. J. Smith, G. J. Bailey   +3 more
doaj   +1 more source

The Plasmasphere Boundary Layer [PDF]

Annales Geophysicae, 2004
As an inner magnetospheric phenomenon the plasmapause region is of interest for a number of reasons, one being the occurrence there of geophysically important interactions between the plasmas of the hot plasma sheet and of the cool plasmasphere. There
D. L. Carpenter, J. Lemaire, J. Lemaire
doaj   +1 more source

Statistics and Empirical Models of the Plasmasphere Boundaries From the Van Allen Probes for Radiation Belt Physics

Geophysical Research Letters, 2022
We deduce the electron plasma density from the NASA Van Allen Probes Electric Field and Waves and Electric and Magnetic Field Instrument Suite and Integrated Science measurements and extract the plasmasphere boundaries throughout 2012–2019.
J.‐F. Ripoll, S. A. Thaller, D. P. Hartley, G. S. Cunningham, V. Pierrard, W. S. Kurth, C. A. Kletzing, J. R. Wygant   +7 more
doaj   +1 more source

Interhemispheric ionosphere-plasmasphere system shows a high sensitivity to the exospheric neutral hydrogen density: a caution of the global reference atmospheric model hydrogen density

Frontiers in Astronomy and Space Sciences, 2023
This study explores the impact of the exosphere hydrogen (H) density on the ionosphere-plasmasphere system using a model whose key inputs are constrained by ionosphere observations at both ends of the magnetic field line with an L-value of 1.75 in the ...
Dmytro Kotov, Phil G. Richards, Maryna Reznychenko, Oleksandr Bogomaz, Oleksandr Bogomaz, Vladimír Truhlík, Susan Nossal, Edwin Mierkiewicz, Taras Zhivolup, Igor Domnin, Yoshizumi Miyoshi, Fuminori Tsuchiya, Atsushi Kumamoto, Yoshiya Kasahara, Masahiro Kitahara, Satoko Nakamura, Ayako Matsuoka, Iku Shinohara, Marc Hairston   +18 more
doaj   +1 more source

Density structures inside the plasmasphere: Cluster observations [PDF]

Annales Geophysicae, 2004
The electron density profiles derived from the EFW and WHISPER instruments on board the four Cluster spacecraft reveal density structures inside the plasmasphere and at its outer boundary, the plasmapause.
F. Darrouzet, P. M. E. Décréau, J. De Keyser, A. Masson, D. L. Gallagher, O. Santolik, O. Santolik, B. R. Sandel, J. G. Trotignon, J. L. Rauch, E. Le Guirriec, P. Canu, F. Sedgemore, M. André, J. F. Lemaire   +14 more
doaj   +1 more source

Recirculation of plasmasphere material during idealized magnetic storms

Frontiers in Physics, 2023
The fate of flux tube material once it is eroded from of the plasmasphere through a dayside plume remains unknown. The eroded plasmasphere material can be either swept away by the solar wind and lost from Earth’s system, or recirculated into the inner ...
Christian-Andrew Bagby-Wright, Daniel T. Welling, Ramon E. Lopez, Roxanne Katus, Brian M. Walsh   +4 more
doaj   +1 more source

Van Allen Probes observation of plasmaspheric hiss modulated by injected energetic electrons [PDF]

Annales Geophysicae, 2018
Plasmaspheric hiss was observed by Van Allen Probe B in association with energetic electron injections in the outer plasmasphere. The energy of injected electrons coincides with the minimum resonant energy calculated for the observed hiss wave ...
R. Shi, W. Li, Q. Ma, Q. Ma, S. G. Claudepierre, C. A. Kletzing, W. S. Kurth, G. B. Hospodarsky, H. E. Spence, G. D. Reeves, J. F. Fennell, J. B. Blake, S. A. Thaller, J. R. Wygant   +13 more
doaj   +1 more source

Links of the Plasmapause With Other Boundary Layers of the Magnetosphere: Ionospheric Convection, Radiation Belt Boundaries, Auroral Oval

Frontiers in Astronomy and Space Sciences, 2021
The plasmapause marks the limit of the plasmasphere and is characterized by a sudden change in plasma density. This can influence the other regions of the magnetosphere, including due to different waves circulating inside and outside the plasmasphere. In
V. Pierrard, V. Pierrard, E. Botek, J.-F. Ripoll, J.-F. Ripoll, S. A. Thaller, M. B. Moldwin, M. Ruohoniemi, G. Reeves   +8 more
doaj   +1 more source