Multistation digisonde observations of equatorial spread F in South America [PDF]
Annales Geophysicae, 2004 Directional ionogram and F-region drift observations were conducted at seven digisonde stations in South America during the COPEX campaign from October to December 2002.
B. W. Reinisch +7 more
doaj +1 more source
Letter to the Editor: Post-midnight onset of spread-F at Kodaikanal during the June solstice of solar minimum [PDF]
Annales Geophysicae, 1999 At dip equatorial stations in the Indian zone, spread-F conditions are known to develop preferentially around midnight during the June solstice (northern summer) months of low solar activity, in association with a distinct increase in F layer height ...
J. H. Sastri
doaj +1 more source
Geophysical Research Letters, 1976 A numerical simulation of the non‐linear evolution of the collisional Rayleigh‐Taylor instability using a set of equations appropriate for the equatorial F region ionosphere has been performed. Our results show that the irregularities produced by the instability grow on the bottomside of the F region peak, as predicted by linear theory, and then the ...
Anthony J. Scannapieco +1 more
openaire +1 more source
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
doaj +1 more source
Climatology of Spread F over Tucumán from Massive Statistical Analysis of Autoscaled Data
Atmosphere, 2021 Automatic ionogram interpretation methods developed for real-time ionospheric monitoring can be applied in retrospective studies to analyze large quantities of data. The Autoscala software, implemented for such a purpose, includes a routine for automatic
Carlo Scotto, Dario Sabbagh
doaj +1 more source
On the seeding of equatorial spread F by gravity waves [PDF]
Geophysical Research Letters, 2013 Abstract The Naval Research Laboratory three‐dimensional simulation code SAMI3/ESF is used to study the response of the postsunset ionosphere to plane gravity waves. The effect of the vertical wind component of the wave is included as well as the effect of the background vertical wind, which can suppress ...
J. Krall, J. D. Huba, D. C. Fritts
openaire +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
Effects of the postsunset vertical plasma drift on the generation of equatorial spread F
Progress in Earth and Planetary Science, 2018 Equatorial spread F (ESF) irregularities are caused by plasma instability processes in the equatorial ionosphere and especially related to plasma bubble phenomena in the topside F region.
Chao-Song Huang
semanticscholar +1 more source