Results 21 to 30 of about 570 (182)

Does Ring Current Heating Generate the Observed O+ Shell?

Geophysical Research Letters, 2020
The Naval Research Laboratory (NRL) Sami3 is Also a Model of the Ionosphere (SAMI3) ionosphere/plasmasphere code is used to examine the effect of ring current heating during a storm. With a ring current heating function added to SAMI3, a cold thermal (
J. Krall, J. D. Huba, M.‐C. Fok
doaj   +1 more source

Premidnight plasmaspheric “plumes” [PDF]

Journal of Geophysical Research: Space Physics, 1997
To explain observations of brief intervals of cold, dense plasma by geosynchronous satellites in the midnight sector prior to or during substorm onset, it has recently been proposed that dense plasmaspheric plasma is drawn out to geosynchronous orbit in the premidnight region by inductive electric fields during the growth phase of a geomagnetic ...
Daniel M. Ober, J. L. Horwitz, M. F. Thomsen, R. C. Elphic, D. J. McComas, R. D. Belian, M. B. Moldwin   +6 more
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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, Alexander Y. Drozdov, Daniel Vech, David M. Malaspina, David M. Malaspina   +4 more
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Mode trapping in the plasmasphere [PDF]

Journal of Geophysical Research: Space Physics, 2008
As a result of its steplike density profile, combined with the monotonically increasing dipole magnetic field close to the Earth, compressional waves propagating outside the plasmapause can tunnel through and be trapped in a narrow layer that acts as a potential well.
H. Turkakin, R. Marchand, Z. C. Kale
openaire   +1 more source

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, Austin Sousa, Riley Reid, Gordon Wilson, Michael Starks, Daniel Ramos, John Ballenthin, Steven Quigley, Ron Kay, James Patton, Joseph Coombs, Judy Fennelly, Ivan Linscott, Umran S. Inan   +13 more
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The Effect of the Thermosphere on Ionosphere Outflows

Frontiers 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
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PINE-RT: An operational real-time plasmasphere model

Frontiers 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, Bernhard Haas, Bernhard Haas, Yuri Y. Shprits, Yuri Y. Shprits, Yuri Y. Shprits   +5 more
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New formulation for the topside ionosphere and plasmasphere based on NeQuick

Journal 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, Pignalberi Alessio, Smirnov Artem   +2 more
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Estimated plasmasphere electron content and O⁺/H⁺ transition height during the February 2022 geomagnetic storm from Irkutsk IS radar data

Solar-Terrestrial Physics
We 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., Zherebtsov G. A., Ivonin V. A., Lebedev V. P.   +3 more
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