Relationship between ionospheric plasma bubble occurrence and lightning strikes over the Amazon region [PDF]
Annales Geophysicae, 2018 The vertical coupling between the troposphere and the ionosphere presents some remarkable features. Under intense tropospheric convection, gravity waves may be generated, and once they reach the ionosphere, these waves may seed instabilities and ...
J. Sousasantos +4 more
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Mapping the East African Ionosphere Using Ground-based GPS TEC Measurements [PDF]
Journal of Astronomy and Space Sciences, 2016 The East African ionosphere (3°S–18°N, 32°E–50°E) was mapped using Total Electron Content (TEC) measurements from ground-based GPS receivers situated at Asmara, Mekelle, Bahir Dar, Robe, Arbaminch, and Nairobi.
Chalachew Kindie Mengist +3 more
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Remote Sensing, 2022 The occurrence of post-sunset equatorial spread-F (ESF) could have detrimental effects on trans-ionospheric radio wave propagation used in modern communications systems.
Prayitno Abadi +8 more
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Influence of annual atmospheric tide asymmetry on annual anomalies of the ionospheric mean state
Earth and Planetary Physics, 2020 Through respectively adding June tide and December tide at the low boundary of the GCITEM-IGGCAS model (Global Coupled Ionosphere–Thermosphere–Electrodynamics Model, Institute of Geology and Geophysics, Chinese Academy of Sciences), we simulate the ...
ZhiPeng Ren +3 more
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Observations in equatorial anomaly region of total electron content enhancements and depletions [PDF]
Annales Geophysicae, 2005 A GSV 4004A GPS receiver has been operational near the crest of the equatorial anomaly at Udaipur, India for some time now. The receiver provides the line-of-sight total electron content (TEC), the phase and amplitude scintillation index, σφ and S4 ...
N. Dashora, R. Pandey
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Equatorial ionospheric bubble precursor [PDF]
Geophysical Research Letters, 2010 A time‐dependent nonlinear three‐dimensional model for the evolution of the equatorial bottomside lower ionosphere in the presence of dissipating gravity waves has been developed. From the numerical solution of the model, it is found that large bottomtype F‐region ionospheric density perturbations and electric fields can be driven by dissipating ...
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Periodic structures in the equatorial ionosphere [PDF]
Radio Science, 2011 The plasma densities detected by the Planar Langmuir Probe (PLP) on board the Communication/Navigation Outage Forecasting System (C/NOFS) satellite have been analyzed for the June 2008 period. This interval, which corresponds to one of the quietest periods in the space era, exhibited broad plasma decreases (BPDs) which we have reported previously.
Huang, C. +3 more
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Study of the equatorial and low-latitude total electron content response to plasma bubbles during solar cycle 24–25 over the Brazilian region using a Disturbance Ionosphere indeX [PDF]
Annales Geophysicae, 2022 This work uses the Disturbance Ionosphere indeX (DIX) to evaluate the ionospheric responses to equatorial plasma bubble (EPB) events from 2013 to 2020 over the Brazilian equatorial and low latitudes.
G. A. S. Picanço +8 more
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EISCAT Svalbard radar observations of ionospheric signatures of magnetopause reconnection during a changing IMF Bz polarity [PDF]
Annales Geophysicae, 2002 Observations by the EISCAT Svalbard radar are presented that show the response of the spatial structure of the ionosphere in the dayside cusp region to a rotational trend in the IMF clock angle.
S. E. Pryse +5 more
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Possible ionospheric preconditioning by shear flow leading to equatorial spread F [PDF]
Annales Geophysicae, 2005 Vertical shear in the zonal plasma drift speed is apparent in incoherent and coherent scatter radar observations of the bottomside F region ionosphere made at Jicamarca from about 1600–2200 LT.
D. L. Hysell, E. Kudeki, J. L. Chau
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