Structure and evolution of internal gravity waves and traveling ionospheric disturbances in regions with sharp gradients of the ionospheric parameters

Abstract

[1] The dynamics of the solitary nonlinear internal gravity waves (IGW), as well as traveling ionospheric disturbances (TID) of the electron density excited by IGW at the heights of the ionosphere's F region, for conditions close to those of the F layer assuming that the source of initial perturbation has the pulse character are studied. In particular, the cases when the solitary IGW and TID propagate in the regions with sharp gradients of the ionospheric parameters, such as electron density, temperature, scale heights for the ions and neutral particles, etc., are considered.Citation: Belashova, E. S., V. Y. Belashov, and S. V. Vladimirov (2007), Structure and evolution of internal gravity waves and traveling ionospheric disturbances in regions with sharp gradients of the ionospheric parameters,

A statistical study of large‐scale traveling ionospheric disturbances observed by GPS TEC during major magnetic storms over the years 2003–2005

“…The simulation of Millward et al [1993] indicated that one electric field burst could cause a single perturbation pulse of the LSTID and not a continuous wave train. Belashova et al [2007] suggested that the solitary gravity waves may have the shape of 2‐D solitons with single or oscillating asymptotics depending on the dispersive characteristics of the media. Thus both the source property and the background upper atmosphere characteristics are responsible for the forming of solitary LSTIDs.…”