Results 1 to 10 of about 2,664 (215)

Travelling ionospheric disturbance over California mid 2000 [PDF]

open access: yesNonlinear Processes in Geophysics, 2006
In this paper, the GPS data collected by more than 130 permanent GPS stations that belong to the Southern California Integrated GPS Network (SCIGN) around the launch of a Minuteman-II missile on 8 July 2000 (UTC) is processed to reveal traveling ...
M. Hawarey
doaj   +8 more sources

LOFAR Observations of Substructure Within a Traveling Ionospheric Disturbance at Mid‐Latitude

open access: yesSpace Weather, 2023
The large scale morphology and finer sub‐structure within a slowly propagating traveling ionospheric disturbance (TID) are studied using wide band trans‐ionospheric radio observations with the LOw Frequency ARray (LOFAR; van Haarlem et al., 2013, https://
Gareth Dorrian   +8 more
doaj   +2 more sources

Ionospheric Tilt Measurements: Application to Traveling Ionospheric Disturbances Climatology Study [PDF]

open access: yesRadio Science, 2020
AbstractIonospheric 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. Analysis of the tilt measurements collected in 2012–2014 with a digisonde at Ebro observatory (40.8°N, 0 ...
Paznukhov, Vadym V.   +3 more
openaire   +2 more sources

Traveling Ionospheric Disturbances [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1972
The T.I.D. of 13 May 1964, discussed by Theme appears to have had unusually high amplitude and would seem well suited for further investigation into its possible extension into the southern hemisphere as well as the possible presence of a simultaneous northbound wave.
S. M. Silverman, T. F. Tuan
openaire   +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

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

open access: yesAtmosphere, 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   +7 more
doaj   +1 more source

A SYNTHESIS OF TEMPORAL VARIATIONS IN DOPPLER SPECTRA RECORDED AT A QUASI-VERTICAL INCIDENCE BY THE HF DOPPLER RADAR WITH SPACED RECEIVERS [PDF]

open access: yesRadio Physics and Radio Astronomy, 2021
Purpose: The ionospheric channel is widely used for the communication, radio navigation, radar, direction finding, radio astronomy, and remote radio probing systems.
V. F. Pushin, L. F. Chernogor
doaj   +1 more source

Periodic oscillations of Doppler frequency excited by the traveling ionospheric disturbances associated with the Tonga eruption in 2022

open access: yesEarth, Planets and Space, 2023
The explosive eruption of the Hunga Tonga-Hunga Ha’apai volcano on 15 January 2022 generated atmospheric waves traveling around the Earth, which caused ionospheric disturbances on various spatio-temporal scales.
Hiroyuki Nakata   +4 more
doaj   +1 more source

Model of traveling ionospheric disturbances [PDF]

open access: yesJournal of Space Weather and Space Climate, 2013
A multiscale semi-empirical model of traveling ionospheric disturbances (TIDs) is developed. The model is based on the following assumptions: (1) TIDs are generated by acoustic-gravity waves (AGWs) and propagate as pressure waves; (2) time intervals between adjacent extrema of atmospheric pressure oscillations in a disturbance source are constant; (3 ...
Fedorenko Yury P.   +3 more
openaire   +2 more sources

Estimation of the parameters of traveling ionospheric disturbances using a chirp-ionosondes network

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2022
In this article, the results of our observations of traveling ionospheric disturbances are discussed using the data from a network of chirp stations for oblique ionospheric sounding in December 2019. All observations were made with the same type of chirp
A.A. Kolchev   +4 more
doaj   +1 more source

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