Ionospheric plasma caves under the equatorial ionization anomaly [PDF]
Journal of Geophysical Research: Space Physics, 2012 This paper reports the existence of plasma caves, minima in the electron density located at 5–10° to the magnetic equator, in the bottomside ionosphere based on electron densities simulations from the International Reference Ionosphere (IRI‐2007) and clear evidences given by plasma density and drift measurements of the Dynamic Explorer 2 (DE 2 ...
I. T. Lee +5 more
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Observations of GPS ionospheric scintillations over Wuhan during geomagnetic storms [PDF]
Annales Geophysicae, 2006 During the two geomagnetic storms which occurred on 1 October 2002 and 22 January 2004, the strong ionospheric scintillations of the GPS L1 band were observed at Wuhan station (30.6° N, 114.4° E, 45.8° Dip), which is ...
G. Li +7 more
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Atmosphere, 2023 Plasma irregularity in the equatorial and low-latitude ionosphere, which leads to ionospheric scintillation, can threaten the operation of radio-based communication and navigation systems. A method for forecasting scintillation activity is still pending.
Guodong Jia +4 more
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Density enhancements associated with equatorial spread F [PDF]
Annales Geophysicae, 2010 Forces governing the three-dimensional structure of equatorial spread-F (ESF) plumes are examined using the NRL SAMI3/ESF three-dimensional simulation code.
J. Krall +3 more
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Earth, Planets and Space, 2019 The response of equatorial ionosphere–thermosphere system to the X3.8 solar flare of January 17, 2005 has been studied using the coordinated measurements of GPS-derived Total Electron Content (TEC), OI 630.0 nm dayglow and magnetic field measurements ...
S. G. Sumod, Tarun Kumar Pant
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Prediction of the thermospheric and ionospheric responses to the 21 June 2020 annular solar eclipse
Earth and Planetary Physics, 2020 On 21 June 2020, an annular solar eclipse will traverse the low latitudes from Africa to Southeast Asia. The highest latitude of the maximum eclipse obscuration is approximately 30°.
Tong Dang +5 more
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Transition of Interhemispheric Asymmetry of Equatorial Ionization Anomaly During Solstices [PDF]
Journal of Geophysical Research: Space Physics, 2018 AbstractThe magnitudes of the two crests of equatorial ionization anomaly (EIA) vary with local time. During the solstices, EIA crest in the winter hemisphere is larger than that in the summer hemisphere before noon/early afternoon. Whereafter, the crest in the summer hemisphere becomes intensified, and the stronger EIA crest transits to the summer ...
He Huang +4 more
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Electrojet control of ambient ionization near the crest of the equatorial anomaly in the Indian zone [PDF]
, 2009 A long-term (1978–1990) database of total electron content (TEC) from a location (Calcutta: 22.58° N, 88.38° E geographic, dip: 32° N) near the northern crest of the equatorial ionization anomaly has extensively been studied to ...
R. Hajra, S. K. Chakraborty
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The combined effects of electrojet strength and the geomagnetic activity (Kp-index) on the post sunset height rise of the F-layer and its role in the generation of ESF during high and low solar activity periods [PDF]
Annales Geophysicae, 2007 Several investigations have been carried out to identify the factors that are responsible for the day-to-day variability in the occurrence of equatorial spread-F (ESF). But the precise forecasting of ESF on a day-to-day basis is still far from reality.
S. Tulasi Ram +7 more
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Theoretical simulation of O+ and H+ densities in the Indian low latitude F-region and comparison with observations [PDF]
Annales Geophysicae, 2002 The O+ and H+ ion density distributions in the Indian low latitude F-region, within ± 15° magnetic latitudes, are simulated using a time dependent model developed on the basis of solution of the plasma continuity equation.
P. K. Bhuyan +4 more
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