Results 51 to 60 of about 166,062,727 (217)

Extreme Poleward Expanding Super Plasma Bubbles Over Asia‐Pacific Region Triggered by Tonga Volcano Eruption During the Recovery‐Phase of Geomagnetic Storm

Geophysical Research Letters, 2022
The Tonga volcano eruption of 15 January 2022 unleashed a variety of atmospheric perturbations, coinciding with the recovery‐phase of a geomagnetic storm.
P. K. Rajesh, C. C. H. Lin, J. T. Lin, C. Y. Lin, J. Y. Liu, T. Matsuo, C. Y. Huang, M. Y. Chou, J. Yue, M. Nishioka, H. Jin, J. M. Choi, S. P. Chen, Marty Chou, H. F. Tsai   +14 more
doaj   +1 more source

Observational Analysis on the Relationship Between Chorus Waves and MeV Microburst Electron Precipitation

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Microbursts are thought to be a key contributor to radiation belt electron loss, with chorus waves considered a primary driver of this precipitation. However, the conditions under which chorus waves produce MeV electron loss remain poorly constrained.
Jorge Romero‐Minaya, Lauren W. Blum, Longzhi Gan, Xiao Chen   +3 more
wiley   +1 more source

The impact of the Hunga Tonga–Hunga Ha’apai volcanic eruption on the Peruvian atmosphere: from the sea surface to the ionosphere

Earth, Planets and Space
The eruption of the Hunga Tonga Hunga Ha’apai volcano on 15 January 2022 significantly impacted the lower and upper atmosphere globally. Using multi-instrument observations, we described disturbances from the sea surface to the ionosphere associated with
E. E. Pacheco, J. P. Velasquez, R. Flores, L. Condori, G. Fajardo, K. Kuyeng, D. E. Scipion, M. Milla, J. F. Conte, F. L. Poblet, J. L. Chau, J. Suclupe, R. Rojas, E. Manay   +13 more
doaj   +1 more source

SATELLITE STUDIES OF IONOSPHERIC MANIFESTATIONS OF ACOUSTIC-GRAVITY WAVES

Radio Physics and Radio Astronomy, 2014
The response of the ionospheric plasma on the propagation of acoustic-gravity waves (AGW) studied at altitudes of 250 − 350 km using the satellite Dynamics Explorer 2 measurements. Wave perturbations are analyzed according to simultaneously measured data
A. V. Bespalova, A. K. Fedorenko
doaj   +1 more source

ELF magnetospheric lines observed by DEMETER [PDF]

Annales Geophysicae, 2005
The influence of man-made activity on the ionosphere may be very important. The effects induced by the Power Line Harmonic Radiation (PLHR) may change the natural wave activity and/or the ionospheric plasma components.
M. Parrot, F. Němec, O. Santolík, J. J. Berthelier   +3 more
doaj   +1 more source

Potential Perturbation of the Ionosphere by Megaconstellations and Corresponding Artificial Re-entry Plasma Dust

, 2023
500,000 to 1 million satellites are expected in the next decades, primarily to build internet constellations called megaconstellations. These megaconstellations are disposable and will constantly re-enter and be replaced, hence creating a layer of conductive particulate.
openaire   +2 more sources

Oxygen Pickup Acceleration in the Plasma Mantle Associated With Traveling Flux‐Rope Structures

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract It is well known that, in the high‐altitude cusp and mantle regions, ionospheric‐origin outflowing oxygen (O+) ions are often energized through non‐adiabatic processes, among which cyclotron resonance is considered a major mechanism. Here, based on Cluster observations, we present evidence that pickup acceleration also operates as a non ...
H. Koike, M. Yamauchi, S. Taguchi, H. Nilsson, I. Dandouras   +4 more
wiley   +1 more source

EISCAT/CRRES observations: Nightside ionospheric ion outflow and oxygen-rich substorm injections [PDF]

, 1996
We present combined observations made near midnight by the EISCAT radar, all-sky cameras and the combined released and radiation efects satellite (CRRES) shortly before and during a substorm.
Gazey, N. G. J., Aylward, A. D., Bunting, R., Wilken, B., Perry, C., Gazey, N.G.J., Bunting, R.J., Opgenoorth, H., Lockwood, M., Smith, P., Lockwood M, Coles S, Lockwood, Mike, Aylward AD, Aylward, A.D., Grandé, M., Coles, S., Gazey NGJ, Perry, C.H., Smith PN, Gazey, N., Smith, P. N., M. Grande, M. Gr, N. G. J. Gazey, Grande M, Bunting RJ, H. Opgenoorth, B. Wilken, A. D. Aylward, Smith, P.N., Bunting, R. J., Perry, C. H., Wilken B, M. Lockwood, S. Coles, Opgenoorth H, P. N. Smith, Perry CH, R. J. Bunting, Aylward, A., C. H. Perry   +41 more
core   +2 more sources

Multi-Experiment Observations of Ionospheric Disturbances as Precursory Effects of the Indonesian Ms6.9 Earthquake on August 05, 2018

Remote Sensing, 2020
Taking the 2018 Ms6.9 Indonesia earthquake as a case study, the ionospheric perturbations in very low frequency (VLF) transmitters recorded by China Seismo-Electromagnetic Satellite (CSES) were mainly investigated, as well as the multi parameters of the ...
Xuemin Zhang, Yalu Wang, Mohammed Yahia Boudjada, Jing Liu, Werner Magnes, Yulin Zhou, Xiaohui Du   +6 more
doaj   +1 more source

HF-Induced Modifications of the Electron Density Profile in the Earth’s Ionosphere Using the Pump Frequencies near the Fourth Electron Gyroharmonic

Remote Sensing, 2021
We discuss results on plasma density profile modifications in the F-region ionosphere that are caused by HF heating with the frequency f0 in the range [(−150 kHz)–(+75 kHz)] around the fourth electron gyroharmonic 4fc.
Alexey V. Shindin, Evgeny N. Sergeev, Savely M. Grach, Gennady M. Milikh, Paul Bernhardt, Carl Siefring, Michael J. McCarrick, Yulia K. Legostaeva   +7 more
doaj   +1 more source