Results 31 to 40 of about 5,534 (208)
The Potential for a Networked Ionospheric Sounding Constellation
Space Weather, 2022 A novel networked sounding constellation mission concept is proposed. Radio sounding is the original sensing method that proved the existence of the ionosphere. Satellite‐borne sounders provided the first global observations of the terrestrial ionosphere
A. T. Chartier
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Prediction of plasmaspheric hiss spectral classes
Frontiers in Astronomy and Space Sciences, 2022 We present a random forests machine learning model for prediction of plasmaspheric hiss spectral classes from the Van Allen Probes dataset. The random forests model provides accurate prediction of plasmaspheric hiss spectral classes obtained by the self ...
Dmitri Kondrashov +4 more
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The plasmasphere of Neptune [PDF]
Journal 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
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New formulation for the topside ionosphere and plasmasphere based on NeQuick
Journal of Space Weather and Space ClimateThe 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
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The Micro‐Broadband Receiver (μBBR) on the Very‐Low‐Frequency Propagation Mapper CubeSat
Earth and Space Science, 2021 The very low frequency (VLF) propagation mapper (VPM) is a 6U CubeSat designed to measure VLF radio waves in Low‐Earth Orbit. The science goals of the VPM mission are to measure VLF signals broadcast by the DSX mission, and to study natural and ...
Robert A. Marshall +13 more
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Van Allen Probes Observations of Oxygen Ions at the Geospace Plume
Frontiers in Astronomy and Space Sciences, 2021 The geospace plume couples the ionosphere, plasmasphere, and magnetosphere from sub-auroral regions to the magnetopause, on polar field lines, and into the magnetotail.
John C. Foster, Philip J. Erickson
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Journal of Geophysical Research: Space Physics, 2021 AbstractWe study packages of VLF whistler‐mode waves observed by the Van Allen Probes satellites in the equatorial plasmasphere. We demonstrate that the main mechanism providing localization of these waves inside relatively broad (>1 RE across the ambient magnetic field) magnetospheric regions is a combined effect of the transverse gradients in the ...
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Solar-Terrestrial PhysicsWe study the topside ionosphere above the NmF2 ionization maximum and the transition region between the ionosphere and the plasmasphere. We analyze the interaction between the topside ionosphere and the plasmasphere during a strong geomagnetic storm in ...
Khabituev D. S. +3 more
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SAMI3 Simulations of a Persistent Plasmasphere Plume
Geophysical Research Letters, 2018 The Naval Research Laboratory Sami3 is Also a Model of the Ionosphere (SAMI3) ionosphere/plasmasphere code is used to examine the physics of a long‐lived plasmasphere plume. The May 1994 storm is simulated.
J. Krall, J. D. Huba, J. E. Borovsky
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Counterstreaming Cold H+, He+, O+, and N+ Outflows in the Plasmasphere
Frontiers in Astronomy and Space Sciences, 2021 The Naval Research Laboratory (NRL) Sami3 is Also a Model of the Ionosphere (SAMI3) ionosphere/plasmasphere code is used to examine H+, He+, N+, and O+ thermal outflows during a storm.
J. Krall, J. D. Huba
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