Results 11 to 20 of about 2,277 (215)

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

open access: yesScientific 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   +3 more
doaj   +2 more sources

New formulation for the topside ionosphere and plasmasphere based on NeQuick

open access: yesJournal of Space Weather and Space Climate
The total electron content (TEC) affecting signal propagation of Global Navigation Satellite Systems (GNSS) is strongly influenced by the topside ionosphere and plasmasphere. This study introduces a new approach to representing the two regions.
Prol Fabricio dos Santos   +2 more
doaj   +2 more sources

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

open access: yesAnnales 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   +13 more
doaj   +1 more source

The Effect of the Thermosphere on Ionosphere Outflows

open access: yesFrontiers in Astronomy and Space Sciences, 2021
The Naval Research Laboratory (NRL) Sami2 is Another Model of the Ionosphere (SAMI2) and Sami3 is Also a Model of the Ionosphere (SAMI3) ionosphere/plasmasphere codes have shown that thermosphere composition and winds significantly affect H+ outflows ...
J. Krall, J. D. Huba
doaj   +1 more source

Magnetosonic Waves Above the Lower Hybrid Frequency in Cyclotron Resonance With the Van Allen Radiation Belt Electrons

open access: yesGeophysical Research Letters, 2022
Cyclotron resonance with magnetosonic waves was usually considered unimportant for the Van Allen radiation belt electron dynamics because it occurs at energies that are too high.
Zhiyong Wu   +4 more
doaj   +1 more source

PINE-RT: An operational real-time plasmasphere model

open access: yesFrontiers in Astronomy and Space Sciences, 2023
The plasmasphere is a region of cold and dense plasma around the Earth, corotating with the Earth. Its plasma density is very dynamic under the influence of the solar wind and it influences several processes such as the GPS navigation, the surface ...
Stefano Bianco   +5 more
doaj   +1 more source

The plasmasphere of Neptune [PDF]

open access: yesJournal of Geophysical Research: Planets, 1998
We examine the plausible existence of Neptune's plasmasphere and study the drift of particles inside it. Using the O8 magnetic field model [Connerney et al., 1991] and assuming a uniform solar wind convection electric field, the plasma convection time and refilling time are calculated in a Euler potential coordinate system [Ho el al., 1997]. The plasma
Tian‐Sen Huang   +2 more
openaire   +1 more source

A coordinated ground-based and IMAGE satellite study of quiet-time plasmaspheric density profiles [PDF]

open access: yes, 2003
Cold plasma mass density profiles in the plasmasphere have been determined for the geomagnetically quiet day of 19th August 2000 using the cross-phase technique applied to ground-based magnetometer data from the SAMNET, IMAGE and BGS magnetometer arrays.
Ozeke, L.G.   +7 more
core   +1 more source

Deep learning model of hiss waves in the plasmasphere and plumes and their effects on radiation belt electrons

open access: yesFrontiers in Astronomy and Space Sciences, 2023
Hiss waves play an important role in removing energetic electrons from Earth’s radiation belts by precipitating them into the upper atmosphere. Compared to plasmaspheric hiss that has been studied extensively, the evolution and effects of plume hiss are ...
Sheng Huang   +11 more
doaj   +1 more source

Electron loss rates from the outer radiation belt caused by the filling of the outer plasmasphere: The calm before the storm [PDF]

open access: yes, 2009
Measurements from seven spacecraft in geosynchronous orbit are analyzed to determine the decay rate of the number density of the outer electron radiation belt prior to the onset of high-speed-stream-driven geomagnetic storms.
Denton, Michael H.   +3 more
core   +1 more source

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