Imaging of the equatorial ionosphere [PDF]
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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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, Weijun Lu, Jinghua Li
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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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Storm-time meridional flows: a comparison of CINDI observations and model results [PDF]
Annales Geophysicae, 2014 During a large geomagnetic storm, the electric field from the polar ionosphere can expand far enough to affect the mid-latitude and equatorial electric fields.
M. Hairston +3 more
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Detection of ionospheric Alfvén resonator signatures in the equatorial ionosphere [PDF]
Journal of Geophysical Research, 2012 The ionosphere response resulting from minimum solar activity during cycle 23/24 was unusual and offered unique opportunities for investigating space weather in the near‐Earth environment. We report ultra low frequency electric field signatures related to the ionospheric Alfvén resonator detected by the Communications/Navigation Outage Forecasting ...
Dieter Bilitza +2 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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