Equatorial scintillations in relation to the development of ionization anomaly [PDF]
Annales Geophysicae, 2006 The irregularities in the electron density distribution of the ionosphere over the equatorial region frequently disrupt space-based communication and navigation links by causing severe amplitude and phase scintillations of signals.
S. Ray +3 more
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Investigation of the response time of the equatorial ionosphere in context of the equatorial electrojet and equatorial ionization anomaly [PDF]
Annales Geophysicae, 2011 Equatorial Electrojet (EEJ) and Equatorial Ionization Anomaly (EIA) are two large-scale processes in the equatorial/low latitude ionosphere, driven primarily by the eastward electric field during daytime.
L. Jose +4 more
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A Synoptic‐Scale Wavelike Structure in the Nighttime Equatorial Ionization Anomaly [PDF]
Earth and Space Science, 2021 Both ground‐ and satellite‐based airglow imaging have significantly contributed to understanding the low‐latitude ionosphere, especially the morphology and dynamics of the equatorial ionization anomaly (EIA).
J. Rodríguez‐Zuluaga +4 more
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Effect of equatorial ionization anomaly on the occurrence of spread-F [PDF]
Annales Geophysicae, 1997 The unique geometry of the geomagnetic field lines over the equatorial ionosphere coupled with the E-W electric field causes the equatorial ionization anomaly (EIA) and equatorial spread-F (ESF).
P. T. Jayachandran +3 more
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Global‐Scale Observations of the Equatorial Ionization Anomaly [PDF]
Geophysical Research Letters, 2019 The National Aeronautics and Space Administration Global‐scale Observations of the Limb and Disk ultraviolet spectrograph has been imaging the equatorial ionization anomaly (EIA), regions of the ionosphere with enhanced electron density north and south ...
R. W. Eastes +7 more
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Airglow observations over the equatorial ionization anomaly zone in Taiwan [PDF]
Annales Geophysicae, 2011 Airglow imaging at mid-latitude stations often show intensity modulations associated with medium scale travelling ionospheric disturbances (MSTID), while those carried out near the equatorial regions reveal depletions caused by equatorial plasma ...
J. Y. Liu +4 more
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Equatorial Ionization Anomaly Crest Position and Width Modeling
Space WeatherKnowing the locations and widths of the Northern and Southern Equatorial Ionization Anomaly (EIA) crests is essential for characterizing the spatiotemporal and solar activity variations of the low latitude ionosphere. The crest region is characterized by
Melessew Nigussie +2 more
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Observations of equatorial ionization anomaly over Africa and Middle East during a year of deep minimum [PDF]
Annales Geophysicae, 2017 In this work, we investigated the veracity of an ion continuity equation in controlling equatorial ionization anomaly (EIA) morphology using total electron content (TEC) of 22 GPS receivers and three ground-based magnetometers (Magnetic Data ...
O. Bolaji +13 more
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Variation of the Hemispheric Asymmetry of the Equatorial Ionization Anomaly with Solar Cycle
Journal of Astronomy and Space Sciences, 2019 In solstices during the solar minimum, the hemispheric difference of the equatorial ionization anomaly (EIA) intensity (hereafter hemispheric asymmetry) is understood as being opposite in the morning and afternoon.
Young-Sil Kwak +2 more
doaj +2 more sources
Characterization and Climatological Modeling of Equatorial Ionization Anomaly (EIA) Crest Position [PDF]
Journal of Geophysical Research: Space Physics, 2022 AbstractThe Equatorial Ionization Anomaly (EIA) is characterized by strong ionospheric gradients that complicate ionospheric modeling and mitigation of ionospheric impact on Global Navigation Satellite System applications. In this study, the variation of EIA crest locations as a function of longitude and solar radio flux index F10.7 has been derived ...
Nigussie, Melessew +2 more
openaire +3 more sources