Forecasting Equatorial Ionospheric Convective Instability With ICON Satellite Measurements
Space Weather, 2023 Measurements from the Ionospheric Connections Explorer satellite (ICON) form the basis of direct numerical forecast simulations of plasma convective instability in the postsunset equatorial F region ionosphere.
D. L. Hysell +4 more
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The Effect of Midnight Temperature Maximum Winds on Post‐Midnight Equatorial Spread F
Space Weather, 2021 The SAMI3/equatorial spread F (Sami3 is also a model of the ionosphere/ESF) code is used to simulate the growth of equatorial plasma bubbles in the presence of a background wind field based on measured winds.
J. Krall +3 more
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Gravity wave and tidal influences on equatorial spread F based on observations during the Spread F Experiment (SpreadFEx) [PDF]
Annales Geophysicae, 2008 The Spread F Experiment, or SpreadFEx, was performed from September to November 2005 to define the potential role of neutral atmosphere dynamics, primarily gravity waves propagating upward from the lower atmosphere, in seeding equatorial spread F (ESF)
D. C. Fritts +10 more
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Bottom-type scattering layers and equatorial spread F [PDF]
Annales Geophysicae, 2004 Jicamarca radar observations of bottom-type coherent scattering layers in the post-sunset bottomside F-region ionosphere are presented and analyzed.
D. L. Hysell, J. Chun, J. L. Chau
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The Effect of Plasma Releases on Equatorial Spread F—a Simulation Study
Frontiers in Astronomy and Space Sciences, 2019 A currently unfulfilled goal of active experimentalists is to control the occurrence of instabilities in the ionosphere such as Equatorial Spread F (ESF), which generates large-scale electron density depletions (plasma bubbles) in the night-time ...
Katherine A. Zawdie +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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Generation of large-scale equatorial F-region plasma depletions during lowrange spread-F season [PDF]
Annales Geophysicae, 2004 All-sky imaging observations of the F-region OI 630nm nightglow emission allow us to visualize large-scale equatorial plasma depletions, generally known as trans-equatorial plasma bubbles. Strong range type spread-F is the radio signature of these
Y. Sahai +6 more
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Radar Observations of 8.3-m scale equatorial spread F irregularities over Trivandrum [PDF]
Annales Geophysicae, 2004 In this paper, we present observations of equatorial spread F (ESF) irregularities made using a newly installed 18MHz radar located at Trivandrum. We characterize the morphology and the spectral parameters of the 8.3-m ESF irregularities which are ...
D. Tiwari +6 more
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Equatorial spread F studies using SAMI3 with two-dimensional and three-dimensional electrostatics [PDF]
Annales Geophysicae, 2013 This letter presents a study of equatorial F region irregularities using the NRL SAMI3/ESF model, comparing results using a two-dimensional (2-D) and a three-dimensional (3-D) electrostatic potential solution. For the 3-D potential solution, two cases
H. C. Aveiro, J. D. Huba
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Three-dimensional simulation of equatorial spread-F with meridional wind effects [PDF]
Annales Geophysicae, 2009 The NRL SAMI3 three-dimensional simulation code is used to examine the effect of meridional winds on the growth and suppression of equatorial spread F (ESF).
J. Krall +3 more
doaj +1 more source