Results 31 to 40 of about 1,563 (166)

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

Comparisons of Differential Code Bias (DCB) Estimates and Low-Earth-Orbit (LEO)-Topside Ionosphere Extraction Based on Two Different Topside Ionosphere Processing Methods

Remote Sensing
Global navigation satellite system (GNSS) differential code bias (DCB) and topside ionosphere vertical electron content (VEC) can be estimated using onboard data from low-earth-orbit (LEO) satellites. These satellites provide the potential to make up for
Mingming Liu, Yunbin Yuan, Jikun Ou, Bingfeng Tan   +3 more
doaj   +1 more source

chuajiang/Daytime-Ionospheric-Irregularities-in-the-Topside-Equatorial-Ionosphere: V2

, 2023
No description ...
Chunhua Jiang
core   +1 more source

Comparison of analytical functions used to describe topside electron density profiles with satellite data

Annals of Geophysics, 2005
Electron density models of the ionosphere use different analytical formulations for the electron density vertical profile in the topside. The present paper compares some single-layer topside analytical descriptions (Chapman, Epstein, modified ...
S. M. Radicella, B. Nava, P. Coïsson, C. Fonda   +3 more
doaj   +1 more source

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
doaj   +1 more source

TEC Enhancement due to Energetic Electrons Above Taiwan and the West Pacific

Terrestrial, Atmospheric and Oceanic Sciences, 2013
The energetic electrons of the inner radiation belt during a geomagnetic disturbance can penetrate in the forbidden range of drift shells located at the heights of the topside equatorial ionosphere (< 1000 km).
Alla V. Suvorova, Lung-Chih Tsai, Alexei V. Dmitriev   +2 more
doaj   +1 more source

Plasma perturbations HF‐induced in the topside ionosphere [PDF]

Journal of Geophysical Research: Space Physics, 2016
AbstractThree plasma perturbations induced by SURA HF (high‐frequency) heating have been selected and analyzed in detail with the DEMETER satellite observing data by instruments of Langmuir probe and ion analyzer. Some common features are revealed, such as (1) electron density and electron temperature both increased during the heating period; (2) both ...
Zhang X., Frolov V., Zhou C., Zhao S., Ruzhin Y., Shen X., Zhima Z., Liu J.   +7 more
openaire   +3 more sources

Helium in the topside Venus ionosphere [PDF]

Journal of Geophysical Research, 1973
The quantity of helium in the Venus atmosphere is estimated from an examination of the measured ionization profiles. The amount of helium necessary to give agreement between the computed and experimental results is approximately 4 x 10 to the 8th power/cucm at 140 km.
openaire   +1 more source

Observing the Earth's Plasmasphere and Ionosphere From the Lunar Surface

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract We present the analysis of the first lunar‐based observational characterization of the Earth's plasmasphere and ionosphere using Global Navigation Satellite Systems signals tracked from the lunar surface by the Lunar GNSS Receiver Experiment (LuGRE). The Earth‐Moon geometry enables limb sounding of the plasmasphere at altitudes exceeding 3,000 
C. Cesaroni, L. Spogli, M. Guerra, R. Ghidoni, V. Ventriglia, A. Minetto, A. Nardin, L. Alfonsi, F. Dovis   +8 more
wiley   +1 more source

Manifestation of solar activity in the global topside ion composition − a study based on satellite data [PDF]

Annales Geophysicae, 2005
The solar cycle variation of the most important parameters characterizing the ion composition in the topside ionosphere is studied. For this purpose data from the ACTIVE mission (the IK-24 satellite) for the maximum of solar cycle 22 (aver F10.7~200),
V. Truhlík, L. Trísková, J. Šmilauer
doaj   +1 more source