Results 11 to 20 of about 397 (163)
Earth, Planets and Space, 2022 To elucidate the characteristics of electromagnetic conjugacy of traveling ionospheric disturbances just after the 15 January 2022 Hunga Tonga-Hunga Ha’apai volcanic eruption, we analyze Global Navigation Satellite System-total electron content data and ...
Atsuki Shinbori +6 more
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Topside signature of medium-scale traveling ionospheric disturbances [PDF]
Annales Geophysicae, 2014 Plasma blobs, localized plasma density enhancements that occur singularly or in periodic groups, have been observed by in situ sensors in the lower- and middle-latitude nighttime ionosphere.
E. S. Miller +6 more
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Ionospheric Tilt Measurements: Application to Traveling Ionospheric Disturbances Climatology Study [PDF]
Radio 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
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Remote 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
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Space Weather, 2023 The sudden storm commencement (SSC) of 3 November 2021, a severe storm was detected through disturbances in magnetospheric and ring current systems at around 1942 UT.
Wellen Rukundo
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Estimation of the parameters of traveling ionospheric disturbances using a chirp-ionosondes network
Учёные 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
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Atmosphere, 2023 In this paper we analyze Digisonde observations obtained in the European region to specify the effects of large-scale travelling ionospheric disturbances (LSTIDs) on the ionospheric characteristics that define the conditions in the bottomside ionosphere.
Ioanna Tsagouri +4 more
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A LOFAR observation of ionospheric scintillation from two simultaneous travelling ionospheric disturbances [PDF]
Journal of Space Weather and Space Climate, 2020 This paper presents the results from one of the first observations of ionospheric scintillation taken using the Low-Frequency Array (LOFAR). The observation was of the strong natural radio source Cassiopeia A, taken overnight on 18–19 August 2013, and exhibited moderately strong scattering effects in dynamic spectra of intensity received across an ...
Richard A. Fallows +57 more
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The Persistent Ionospheric Responses Over Japan After the Impact of the 2011 Tohoku Earthquake
Space Weather, 2020 In this study, we report the persistent impacts of the 2011 Tohoku earthquake/tsunami on the ionosphere using the ground‐based Global Navigation Satellite System and FORMOSAT‐3/COSMIC total electron content.
Min‐Yang Chou +3 more
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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 +2 more
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