Results 21 to 30 of about 89,788 (206)
Artificial periodic irregularities in the auroral ionosphere [PDF]
, 1996 International audienceArtificial periodic irregularities (API) are produced in the ionospheric plasma by a powerful standing electromagnetic wave reflected off the F region.
N. P. Goncharov +12 more
core +2 more sources
Space Weather, 2022 Can geomagnetic storms during low solar activity trigger formation of extreme equatorial plasma bubbles (EPBs) that affect low and midlatitudes? We analyzed the ionospheric response to the 25–26 August 2018 geomagnetic storm and revealed formation of ...
Iurii Cherniak, Irina Zakharenkova
doaj +1 more source
Remote Sensing, 2023 Geomagnetic storms are one of the leading causes of ionospheric irregularities, depending on their intensity. The 6–10 September 2017 geomagnetic storm, the most severe geomagnetic event of the year, resulted from an X9 solar flare and a subsequent ...
Alireza Atabati +6 more
doaj +1 more source
Reviews of Geophysics, 1980 Extensive experimental and theoretical research has been performed in the last decade to study ionospheric irregularities. These studies have shown that plasma instabilities play a major role in the generation of the irregularities. In this work we describe in detail the recent experimental studies of the E and F region irregularities and also the ...
Fejer, B. G., Kelley, M. C.
openaire +2 more sources
Multi-frequency HF radar measurements of artificial F-region field-aligned irregularities [PDF]
, 2004 International audienceWe present radar backscatter power measurements using the CUTLASS HF radar at Hankasalmi, Finland from F-region field-aligned irregularities induced by HF radio pumping with the EISCAT Heating facility.
A. Senior +15 more
core +2 more sources
Simultaneous ground-based and in situ Swarm observations of equatorial F-region irregularities over Jicamarca [PDF]
Annales Geophysicae, 2020 Ionospheric irregularities are a common phenomenon in the low-latitude ionosphere. They can be seen in situ as depletions of plasma density, radar plasma plumes, or ionogram spread F by ionosondes.
S. Aol, S. Buchert, E. Jurua, M. Milla
doaj +1 more source
Simultaneous HF measurements of E- and F-region Doppler velocity at large flow angles [PDF]
, 2004 International audienceData collected by the CUTLASS Finland HF radar are used to illustrate the significant difference between the cosine component of the plasma convection in the F-region and the Doppler velocity of the E-region coherent echoes observed
Koustov, A. V. +5 more
core +2 more sources
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
doaj +1 more source
Remote Sensing, 2021 This study presents observations of nighttime spread F/ionospheric irregularities and spread Es at low and middle latitudes in the South East Asia longitude of China sectors during the recovery phase of the 7–9 September 2017 geomagnetic storm.
Lehui Wei +7 more
doaj +1 more source
Earth, Planets and Space, 2023 The occurrence of plasma irregularities and ionospheric scintillation over the Caribbean region have been reported in previous studies, but a better understanding of the source and conditions leading to these events is still needed.
Jonas Sousasantos +5 more
doaj +1 more source