Results 31 to 40 of about 336 (149)

Observations of AGW/TID propagation across the polar cap: a case study [PDF]

open access: yesAnnales Geophysicae, 2011
In this paper, we present observational evidence for the trans-polar propagation of large-scale Traveling Ionospheric Disturbances (TIDs) from their nightside source region to the dayside.
H. T. Cai   +6 more
doaj   +1 more source

Traveling Ionospheric Disturbances Observed Over South America After Lithospheric Events: 2010–2020

open access: yes, 2022
Here, the ionospheric response to earthquakes, earthquakes inducing tsunamis, and volcanic eruptions are presented as a contribution to the so‐called ionospheric seismology with the eventual development of real‐time warning systems in mind.
M. Bravo   +9 more
core   +1 more source

Observations of ionospheric disturbances associated with the 2020 Beirut explosion by Defense Meteorological Satellite Program and ground-based ionosondes [PDF]

open access: yesAnnales Geophysicae
A major explosion that released a significant amount of energy into the atmosphere occurred in Beirut on 4 August 2020. The energy released may have reached the upper atmosphere and generated some traveling ionospheric disturbances (TIDs), which can ...
R. Pradipta, P.-C. Lai
doaj   +1 more source

CubeSat GPS Observation of Traveling Ionospheric Disturbances After the 2022 Hunga‐Tonga Hunga‐Ha'apai Volcanic Eruption and Its Potential Use for Tsunami Warning

open access: yesEarth and Space Science, 2023
Multiple passages of the atmospheric (Lamb) waves were recorded globally after the Hunga Tonga‐Hunga Ha'apai (HTHH) volcanic eruption on 15 January 2022.
Shin‐Chan Han   +5 more
doaj   +1 more source

Ionospheric tilt measurements: application to traveling ionospheric disturbances climatology study

open access: yes, 2020
Ionospheric tilt is a concept used to characterize local horizontal electron density gradients in the ionosphere using a mirror reflection model. Experimental results are presented that illustrate the validity and accuracy of such approach.
Altadill, David   +7 more
core   +1 more source

Occurrence and Characteristics of Traveling Ionospheric Disturbances in the Antarctic Peninsula Region

open access: yes, 2022
A statistical picture of the occurrence and characteristics of Traveling Ionospheric Disturbances (TIDs) over the Antarctic Peninsula is established using Global Navigation Satellite System Total Electron Content and High Frequency sounding observations.
A. S. Kashcheyev   +13 more
core   +1 more source

A Statistical Study of Poleward Traveling Ionospheric Disturbances Over the African and American Sectors During Geomagnetic Storms

open access: yes, 2022
We present statistical results of traveling ionospheric disturbances (TIDs) with origin near the geomagnetic equator during geomagnetic storms that occurred within the period of 2010–2018.
Ngwira, Chigomezyo M.   +11 more
core   +1 more source

Impacts of acoustic and gravity waves on the ionosphere

open access: yesFrontiers in Astronomy and Space Sciences, 2022
The impact of regional-scale neutral atmospheric waves has been demonstrated to have profound effects on the ionosphere, but the circumstances under which they generate ionospheric disturbances and seed plasma instabilities are not well understood ...
Kate Zawdie   +18 more
doaj   +1 more source

Probing of medium-scale traveling ionospheric disturbances using HF-induced scatter targets [PDF]

open access: yes, 2006
International audienceExperimental results from the Tromsø and Sura heating experiments at high and mid-latitudes are examined. It is shown that the combination of HF-induced target and bi-static HF Doppler radio scatter observations is a profitable ...
Rietveld, Michael T.   +32 more
core   +1 more source

Simulated high frequency ray paths considering traveling ionospheric disturbances [PDF]

open access: yes, 2020
This study presents a modified version of a classical 3-D numerical ray tracing code [originally by Jones and Stephenson (A versatile three-dimensional ray tracing computer program for radio waves in the ionosphere. Office of Telecommunications Report 75–
Chum, Jaroslav   +3 more
core   +1 more source

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