Results 41 to 50 of about 41,349 (201)

HF Heating Effects as Seen From Below and Above: First Results of Joint SURA–Ionosfera‐M Experiment

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract This paper presents the first results of a coordinated experiment on the ionospheric plasma response to high‐frequency (HF) overdense heating, conducted using the SURA heating facility and the Ionosfera‐M satellite. The experiment combined ground‐based observations with in situ satellite measurements, enabling a comprehensive study of ...
A. A. Chernyshov, A. M. Padokhin, S. M. Grach, D. A. Kogogin, A. V. Shindin, S. A. Pulinets, I. A. Nasyrov, A. B. Beletsky, I. D. Tkachev, J. K. Legostaeva, D. V. Chugunin, M. A. Evdokimova, G. A. Kurbatov, K. G. Tsybulya, A. E. Solin, A. V. Shchennikov, E. V. Tareeva, V. V. Emelyanov, M. M. Mogilevsky   +18 more
wiley   +1 more source

Global Cowling Effects in the Sq‐EEJ Current System Under Electrostatic Approximation: Theoretical Simulation

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract The solar quiet (Sq) current and equatorial electrojet are widely known as one of the fundamental currents in ionosphere. Although the Sq‐EEJ current system has been extensively investigated, the manner in which Hall and Pedersen current components collectively organize the system has not been clearly described.
T. Ijuin, H. Jin, A. Yoshikawa
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

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

Long‐Term Trends in the Ionospheric Equivalent Slab Thickness as a Proxy of Climate Change in the Ionosphere

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract Global warming warms the lower atmosphere, but cools and contracts the upper atmosphere. These changes also affect the ionosphere, altering the vertical distribution of plasma through changes in the plasma scale height. Here, we use ionospheric equivalent slab thickness (τ) multidecadal time series, derived through observations from co‐located
A. Pignalberi, T. Alberti
wiley   +1 more source

Radio-induced incoherent scatter ion line enhancements with wide altitude extents in the high-latitude ionosphere [PDF]

, 2013
[1] Apparent large electron density enhancements deduced from incoherent scatter radar observations during recent high power radio wave injection experiments at the European Incoherent Scatter Scientific Association (EISCAT) facility near Tromsø, Norway ...
Rietveld, M. T., Senior, A., Kosch, M. J., Häggström, I.   +3 more
core   +4 more sources

Localized structure in the cusp and high-latitude ionosphere: a modelling study [PDF]

Annales Geophysicae, 1999
The ionospheric signature of a flux transfer event (FTE) seen in EISCAT radar data has been used as the basis for a modelling study using a new numerical model of the high-latitude ionosphere developed at the University of Sheffield, UK. The evolution
H. F. Balmforth, R. J. Moffett, A. S. Rodger   +2 more
doaj   +1 more source

On Turbulent Features of E × B Plasma Motion in the Auroral Topside Ionosphere: Some Results from CSES-01 Satellite

Remote Sensing, 2022
The recent Chinese Seismo-Electromagnetic Satellite (CSES-01) provides a good opportunity to investigate some features of plasma properties and its motion in the topside ionosphere. Using simultaneous measurements from the electric field detector and the
Giuseppe Consolini, Virgilio Quattrociocchi, Simone Benella, Paola De Michelis, Tommaso Alberti, Mirko Piersanti, Maria Federica Marcucci   +6 more
doaj   +1 more source

Signal Data Stream Parameters Passing Ionospheric Communication Links With Fading Caused by Natural Clutter Phenomena

Radio Science, Volume 61, Issue 8, August 2026.
Abstract This paper explores the impact of natural phenomena on signal data transmission across various ionospheric communication channels. The study focuses on three primary phenomena: meteor trails prevalent in the middle‐ and lower‐latitude ionosphere, bubble and plume structures observed around the equatorial ionosphere, and magnetic‐storm‐induced ...
I. Bronfman, Y. Ben‐Shimol, N. Blaunstein   +2 more
wiley   +1 more source

Sources of Variability in the Topside Ionosphere

, 2018
The topside ionosphere is a dynamic region of the Earth’s upper atmosphere that couples with solar and terrestrial regions and affects communication and navigation systems.
Hawkins, Jessica M.
core   +2 more sources