Imaging of the equatorial ionosphere
Annals of Geophysics, 2005 The equatorial anomaly is the dominant structure in free electron concentration in the tropical ionosphere. Due to its edges (crests) which are characterised by steep latitudinal gradients in TEC and are temporally and spatially variable, it is
C. N. Mitchell, M. Materassi
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Generation of enigmatic equatorial ionospheric plasma blobs during the 17 March 2015 super geomagnetic storm period over the Indian region [PDF]
Scientific ReportsIn general, during geomagnetic storm times, equatorial ionospheric plasma bubbles (equivalently plasma depletions) will be generated due to the effect of prompt penetration of magnetosphere-associated disturbed electric fields to the magnetic equatorial ...
Ramkumar Thokuluwa
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GNSS Ionosphere Sounding of Equatorial Plasma Bubbles [PDF]
Atmosphere, 2019 Ground- and space-based Global Navigation Satellite System (GNSS) receivers can provide three-dimensional (3D) information about the occurrence of equatorial plasma bubbles (EPBs).
Guanyi Ma +5 more
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The equatorial F-layer: progress and puzzles [PDF]
Annales Geophysicae, 2000 This work reviews some aspects of the ionospheric F-layer in the vicinity of the geomagnetic equator. Starting with a historical introduction, brief summaries are given of the physics that makes the equatorial ionosphere so interesting, concentrating ...
H. Rishbeth, H. Rishbeth
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Meridional equatorial electrojet current in the American sector [PDF]
Annales Geophysicae, 1999 Huancayo is the only equatorial electrojet station where the daytime increase of horizontal geomagnetic field (H) is associated with a simultaneous increase of eastward geomagnetic field (Y). It is shown that during the counter electrojet period when ∆
R. G. Rastogi
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High resolution 2-D maps of OI 630.0 nm thermospheric dayglow from equatorial latitudes [PDF]
Annales Geophysicae, 1998 The first-ever high resolution 2-D maps of OI 630.0 nm dayglow obtained from equatorial latitudes clearly reveal the movement as a large-scale feature of the equatorial ionization anomaly (EIA).
D. Pallam Raju, R. Sridharan
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Generation of equatorial plasma bubble after the 2022 Tonga volcanic eruption
Scientific Reports, 2023 Equatorial plasma bubbles are a phenomenon of plasma density depletion with small-scale density irregularities, normally observed in the equatorial ionosphere.
Atsuki Shinbori +13 more
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Letter to the Editor
Forbush precursory increase and shock-associated particles on 20 October 1989 [PDF]
Annales Geophysicae, 2002 Strong interplanetary disturbances may affect cosmic ray protons tremendously with energies less than 1 GeV, increasing their intensity by hundreds of percents, but they are not so effective for protons of higher energies.
A. Struminsky +2 more
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Role of the magnetospheric and ionospheric currents in the generation of the equatorial scintillations during geomagnetic storms [PDF]
Annales Geophysicae, 2004 The equatorial ionosphere parameters, Kp, Dst, AU and AL indices characterized contribution of different magnetospheric and ionospheric currents to the H-component of geomagnetic field are examined to test the geomagnetic activity effect on the ...
L. Z. Biktash
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Geophysical Research Letters, 2023 We report a new ionosphere phenomenon: Equatorial ionization anomaly (EIA) discontinuity (EIAD), based on OI 135.6 nm radiance observations from the Global Observations of Limb and Disk (GOLD), ground‐based total electron content maps and in‐situ ion ...
Xuguang Cai +9 more
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