Control of equatorial ionospheric morphology by atmospheric tides

By T. Immel, E. Sagawa, Scott L. England, S. Henderson, M. E. Hagan, S. Mende, H. Frey, Charles Swenson, Larry J. Paxton. 2006

654 citations recorded by the source corpus.

Subfields: Astronomy and Astrophysics, Molecular Biology

View Paper: https://www.semanticscholar.org/paper/273b9ab22b5801b75c70e666b3d761936699da1d

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Citations in the corpus

Longitudinal variation of F region electron density and thermospheric zonal wind caused by atmospheric tides (2007, background): “At the same time the crests are displaced to higher latitudes, as is evident in Figure 4 of Immel et al. [2006]. A possible explanation could be that the”
Equatorial and Low Latitude Ionospheric Effects During Sudden Stratospheric Warming Events (2011, background): “These ionospheric signatures have been identified before in measurements of the nighttime equatorial ionization anomaly (e.g., Immel et al. 2006) and noontime equatorial electrojet (England et al. 2006) using far ultraviolet images.”
Connections between deep tropical clouds and the Earth's ionosphere (2007, methodology): “Notably, the simulated EIA extends into the dusk sector (30 W to 30 E), where IMAGE-FUV observed zonal wavenumber-4 variations in asynoptic maps of the EIA near 20–22 local solar time (LST) [Immel et al., 2006].”
Thermosphere extension of the Whole Atmosphere Community Climate Model (2010, neutral): “The nonmigrating diurnal eastward propagating wavenumber 3 signature in the ionosphere has been identified by the IMAGE satellite [Sagawa et al., 2005; Immel et al., 2006], and studied numerically by Hagan et al. [2009].”
Tidal propagation of deep tropical cloud signatures into the thermosphere from TIMED observations (2008, background): “It has recently attracted a considerable attention because there is a growing observational evidence that DE3 is the main source of the prominent four-peaked longitudinal variation of the equatorial ionization anomaly (EIA) in F-region electron density [Lin et al., 2007], wind [Häusler et al., 2007”
FORMOSAT-3/COSMIC observations of seasonal and longitudinal variations of equatorial ionization anomaly and its interhemispheric asymmetry during the solar minimum period (2009, background): “tudinal structure in EIA [Sagawa et al., 2005; Immel et al., 2006; Lin et al., 2007b, 2007c; Liu and Watanabe, 2008; Kil et al., 2008]; hence the underlying physical mechanisms for this four-peaked structure will not be discussed here.”
Seasonal and longitudinal dependence of equatorial disturbance vertical plasma drifts (2008, background): “Over the last decade, measurements from several satellites have provided more detailed information on the global morphology of the low latitude ionosphere [e.g., Fejer et al., 1995; Immel et al., 2006; Fejer et al., 2008].”
Comparison of COSMIC ionospheric measurements with ground-based observations and model predictions : Preliminary results (2007, background): “Finally, there are variations in electric fields due to the upward propagation of the tides and other waves from the lower atmosphere [Walker, 1981; Immel et al., 2006; England et al., 2006].”
Wavenumber‐4 patterns of the total electron content over the low latitude ionosphere (2008, result): “[12] As suggested by previous works [Sagawa et al., 2005; England et al., 2006a; Immel et al., 2006; Hagan et al., 2007], the longitudinal wavenumber-4 structure in the EIA region may be caused by the longitudinal modulation of the F-region ion drifts which is created in turn by the longitudinal…”
Longitudinal variation of the E‐region electric fields caused by atmospheric tides (2006, background): “As discussed by Immel et al. [2006], these tidal changes in the strength of the winds are responsible for creating a longitudinal modulation of the E-region dynamo fields and associated daytime upward drift of F-region plasma.”
The global electrical circuit: A review (2009, background): “Is it possible that Xray and gamma ray ionization is responsible for the structure documented by Immel et al. (2006)?”
Quiet time equatorial F region vertical plasma drift model derived from ROCSAT‐1 observations (2008, neutral): “[6] Recent satellite studies have reported wave numberfour longitudinal signatures on the strengths of the nighttime equatorial ionization anomaly [Immel et al., 2006], and of the noontime equatorial electrojet [England et al.”
Tropospheric tidal effects on the middle and upper atmosphere (2009, background): “[2] Recent satellite borne diagnostics of the low-latitude upper atmosphere reveal longitude variations in 1356 nm airglow brightness measurements [e.g., Sagawa et al., 2005; Immel et al., 2006; England et al., 2006b], electron density [Lin et al.”
Longitudinal structure of the equatorial ionosphere: Time evolution of the four-peaked EIA structure (2007, background): “The hypothesis put forward by previous authors [e.g., Sagawa et al., 2005; Immel et al., 2006; England et al., 2006a, 2006b; Lin et al., 2007] suggests that the stronger EIA zones are produced by a stronger plasma fountain effect in those four regions.”
Nonmigrating tidal signals in the upper thermospheric zonal wind at equatorial latitudes as observed by CHAMP (2009, methodology): “Liu et al. (2006) name an uncertainty of 20 m/s for the zonal wind calculated from CHAMP accelerometer measurements.”
Longitudinal variability of low‐latitude total electron content: Tidal influences (2007, methodology): “With regard to the wave number four pattern, Immel et al. [2006] suggested that it is the result of electrodynamic effects on the plasma distribution of nonmigrating tides, which are associated with latent heat release during raindrop condensation over the tropics [Hagan and Forbes, 2002, 2003].”