Results 11 to 20 of about 54,210 (248)

PREDOMINANT TRAVELING IONOSPHERIC DISTURBANCES OVER EASTERN EUROPE DURING LOW LEVELS OF SOLAR AND GEOMAGNETIC ACTIVITIES USING INCOHERENT SCATTER RADAR DATA [PDF]

open access: yesRadio Physics and Radio Astronomy, 2020
Purpose: Detection of wave processes of various temporal and spatial scales in the mid-latitude ionosphere over the Eastern Europe near the characteristic geophysical time periods (equinoxes and solstices) during magnetically quiet and weakly disturbed ...
K. D. Aksonova, S. V. Panasenko
doaj   +1 more source

Statistical relation of traveling ionospheric disturbances with neutral wind and disturbances in the stratosphere

open access: yesSolar-Terrestrial Physics, 2022
Using the representative statistics on traveling ionospheric disturbances (TIDs) obtained by Yekaterinburg and Magadan radars, we have shown that distributions of TIDs and average TID velocities by azimuths and local time agree well with the hypothesis ...
Tolstikov M. V.   +4 more
doaj   +1 more source

Solar wind Alfvén waves: a source of pulsed ionospheric convection and atmospheric gravity waves [PDF]

open access: yesAnnales Geophysicae, 2005
A case study of medium-scale travelling ionospheric disturbances (TIDs) that are correlated with solar wind Alfvén waves is presented. The HF radar ground-scatter signatures of TIDs caused by atmospheric gravity waves with periods of 20-40min are
P. Prikryl   +3 more
doaj   +1 more source

Multiwave Structure of Traveling Ionospheric Disturbances Excited by the Tonga Volcanic Eruptions Observed by a Dense GNSS Network in China

open access: yesSpace Weather, 2023
We used dense global navigation satellite system data from China to track the propagation of traveling ionospheric disturbances (TIDs) triggered by the 2022 January 15 Tonga volcanic eruption. We identified two TIDs originating from the eruption.
Xiaolin Li   +5 more
doaj   +1 more source

Ionospheric Disturbances Observed Following the Ridgecrest Earthquake of 4 July 2019 in California, USA

open access: yesRemote Sensing, 2022
Earthquakes are known to generate disturbances in the ionosphere. Such disturbances, referred to as co-seismic ionospheric disturbances, or ionoquakes, were previously reported for large earthquakes with magnitudes Mw≥ 6.6.
Saul A. Sanchez   +3 more
doaj   +1 more source

Some characteristics of large-scale travelling ionospheric disturbances and a relationship between the F2 layer height rises of these disturbances and equatorial pre-sunrise events [PDF]

open access: yesAnnales Geophysicae, 2010
Initially some characteristics of large-scale travelling ionospheric disturbances (LS-TIDs) have been discussed briefly particularly as reported in the early literature.
G. G. Bowman, I. K. Mortimer
doaj   +1 more source

Ionospheric disturbances observed over Japan following the eruption of Hunga Tonga-Hunga Ha’apai on 15 January 2022

open access: yesEarth, Planets and Space, 2022
Traveling ionospheric disturbances (TIDs) were observed over Japan by using Global Navigation Satellite System (GNSS) receiver network data after the eruption of Hunga Tonga-Hunga Ha’apai in Tonga on 15 January 2022.
Susumu Saito
doaj   +1 more source

Traveling ionospheric disturbances triggered by the 2009 North Korean underground nuclear explosion [PDF]

open access: yesAnnales Geophysicae, 2015
Underground nuclear explosions (UNEs) can induce acoustic-gravity waves, which disturb the ionosphere and initiate traveling ionospheric disturbances (TIDs).
X. Zhang, L. Tang
doaj   +1 more source

A method for real-time identification and tracking of traveling ionospheric disturbances using ionosonde data: first results

open access: yesJournal of Space Weather and Space Climate, 2020
Traveling Ionospheric Disturbances (TIDs) are wave-like propagating irregularities that alter the electron density environment and play an important role spreading radio signals propagating through the ionosphere. A method combining spectral analysis and
Altadill David   +8 more
doaj   +1 more source

Simulation of Focusing Effect of Traveling Ionospheric Disturbances on Meter-Decameter Solar Dynamic Spectra [PDF]

open access: yes, 2018
For the first time we present simulation results of the focusing effect of the ionospheric plasma density irregularities, namely, Medium Scale Traveling Ionospheric Disturbances (MSTIDs), on solar radio emission by applying a ray-tracing method to the ...
Chen, Yao   +4 more
core   +2 more sources

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