Results 31 to 40 of about 4,167 (217)

Global Ionospheric Disturbance Propagation and Vertical Ionospheric Oscillation Triggered by the 2022 Tonga Volcanic Eruption

Atmosphere, 2022
The Tonga volcano erupted on 15 January 2022, at 04:15:45 UTC, which significantly influenced the atmosphere and space environment, at the same time, an unprecedented opportunity to monitor ionospheric anomalies is provided by its powerful eruption.
Qiaoli Kong, Changsong Li, Kunpeng Shi, Jinyun Guo, Jingwei Han, Tianfa Wang, Qi Bai, Yanfei Chen   +7 more
doaj   +1 more source

MANIFESTATIONS OF WAVE PROCESSES IN IONOSPHERIC PLASMA PARAMETERS DURING THE GEOSPACE STORM ON 1–3 SEPTEMBER, 2016

Radio Physics and Radio Astronomy, 2019
Purpose: Analysis of wave processes during the geospace storms in the mid-latitude ionosphere, obtaining the height-temporal dependences of relative variations of the incoherent scattering radar signal power, temperatures of electrons and ions ...
K. D. Aksоnova, S. V. Panasenko
doaj   +1 more source

GPS observations of medium-scale traveling ionospheric disturbances over Europe [PDF]

Annales Geophysicae, 2013
Two-dimensional structures of medium-scale traveling ionospheric disturbances (MSTIDs) over Europe have been revealed, for the first time, by using maps of the total electron content (TEC) obtained from more than 800 GPS receivers of the European
Y. Otsuka, K. Suzuki, S. Nakagawa, M. Nishioka, M. Nishioka, K. Shiokawa, T. Tsugawa   +6 more
doaj   +1 more source

Traveling wave packets of total electron content disturbances as deduced from global GPS network data

, 2002
We identified a new class of mid-latitude medium-scale traveling ionospheric disturbances (MS TIDs), viz. traveling wave packets (TWPs) of total electron content (TEC) disturbances.
Afraimovich, Afraimovich, Afraimovich, Afraimovich, Afraimovich, Afraimovich, Afraimovich, Afraimovich, Afraimovich, Afraimovich, Al'perovich, Baker, Bertin, Bertin, Davies, Davies, Duffus, E.L. Afraimovich, Francis, Hines, Hines, Hocke, Hung, Jacobson, Jacobson, Kalikhman, Kersly, Klobuchar, Klostermeyer, Mannucci, Mercier, Mercier, N.P. Perevalova, Okuzawa, Oliver, Otsuka, Rishbeth, S.V. Voyeikov, Saito, Saito, Shan, Shiokawa, Skone, Skone, Somsikov, Spoelstra, Stobie, Velthoven, Waldock, Waldock, Waldock, Yakovets   +51 more
core   +1 more source

Magnetospheric response to magnetosheath pressure pulses: A low pass filter effect [PDF]

, 2013
. We present observations from the magnetopause to the ground during periods of large amplitude, transient dynamic pressure pulses in the magnetosheath.
Archer, MO, Eastwood, JP, Horbury, TS, Weygand, JM, Yeoman, TK   +4 more
core   +1 more source

Propagation of gravity waves and spread F in the low-latitude ionosphere over Tucumán, Argentina, by continuous Doppler sounding: first results [PDF]

, 2014
Results of systematic analysis of propagation directions and horizontal velocities of gravity waves (GWs) and spread F structures in low-latitude ionosphere (magnetic inclination ~27°) in Tucumán region, Argentina, are presented.
Baše, J., Burešová, D., Cabrera, M. A., Cangemi, José Ignacio, Chum, J., Ezquer, Rodolfo Gerardo, Fišer, J., Hruška, F., Ise, Juan Eduardo, Laštovička, J., Miranda Bonomi, Fernando Alberto, Molina, Maria Graciela, Šindelářová, T.   +12 more
core   +2 more sources

Rapid‐run ionosonde observations of traveling ionospheric disturbances in the auroral ionosphere [PDF]

Journal of Geophysical Research: Space Physics, 2013
AbstractSince 2007, the Sodankylä Geophysical Observatory routinely performs vertical ionosphere soundings once per minute, using a frequency‐modulated continuous‐wave chirp at the rate of 500 kHz/s from 500 kHz to 16 MHz. We used these data to study traveling ionospheric disturbances (TIDs) during 10–16 local time.
Kozlovski Alexandre, Ulich Thomas, Turunen Tauno   +2 more
openaire   +1 more source

Ionospheric Corrections via PIM and Real-Time Data [PDF]

, 1999
We describe a method for removing ionospheric effects from single-frequency radio data a posteriori. This method is based on a theoretical climatological model developed by the USAF, which returns electron density as a function of position and time along
Campbell, R. M.
core   +3 more sources

Vertical Characteristics of Travelling Ionospheric Disturbances [PDF]

Australian Journal of Physics, 1960
The vertical dimensions of travelling disturbance phenomena have been investigated by derivation of the associated true height distributions of ion density. The height at which they appear often has an upper limit which may fluctuate in height from day to day.
openaire   +1 more source

Large‐Scale Magnetosheath Jets Formed by Shock‐Discontinuity Interactions: A Three‐Dimensional Global Hybrid Simulation

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract Magnetosheath high‐speed jets with enhanced dynamic pressure are common in Earth's magnetosheath and can impinge on the magnetopause, driving pronounced boundary deformation. Recent observations indicate that shock–discontinuity interactions (SDIs) can generate magnetosheath jets, but the formation mechanism is still unclear.
Jin Guo, San Lu, Quanming Lu, Yufei Zhou, Boyi Wang, Tianran Sun, Yihong Guo, Zhongwei Yang, Shimou Wang, Junyi Ren, Jiuqi Ma, Chao Shen, Xinliang Gao, Rongsheng Wang   +13 more
wiley   +1 more source