Results 1 to 10 of about 154 (118)

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, R A Fallows, Alan Wood
exaly   +2 more sources

Midlatitudinal Special Airglow Structures Generated by the Interaction Between Propagating Medium‐Scale Traveling Ionospheric Disturbance and Nighttime Plasma Density Enhancement at Magnetically Quiet Time

open access: yesGeophysical Research Letters, 2019
This paper reports a special midlatitudinal medium‐scale traveling ionospheric disturbance (MSTID) event, accompanied by a poleward surge of airglow depletion/enhancement and a bifurcation of depletion during the magnetically quiet period.
Longchang Sun, Jiyao Xu, Chao Xiong
exaly   +2 more sources

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

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

Traveling Ionospheric Disturbances Characteristics during the 2018 Typhoon Maria from GPS Observations

open access: yesRemote Sensing, 2020
Typhoons often occur and may cause huge loss of life and damage of infrastructures, but they are still difficult to precisely monitor and predict by traditional in-situ measurements.
Yiduo Wen, Shuanggen Jin
doaj   +1 more source

Parameters of traveling ionospheric disturbances: results from spaced oblique HF sounding

open access: yesВісник Харківського національногоуніверситету імені В.Н. Каразіна. Серія: Радіофізика та електроніка, 2022
Urgency. A characteristic feature of the ionospheric radio channel is that its parameters depend on season, local time, solar activity, geographic coordinates, the state of the sun, the state of atmospheric-space weather, etc. The state of the atmosphere
L. F. Chernogor   +6 more
doaj   +1 more source

Longitudinal effects of ionospheric responses to substorms at middle and lower latitudes: a case study [PDF]

open access: yesAnnales Geophysicae, 1995
An ionospheric model is used to simulate total electron content (TEC) disturbance events observed at middle and lower latitude sites near 75°W and 7°E longitudes.
X. Pi   +3 more
doaj   +1 more source

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