Hydrodynamic instabilities such as Rayleigh–Taylor (RT) and Richtmyer–Meshkov (RM)
instabilities usually appear in conjunction with the Kelvin–Helmholtz (KH) instability and are …

Atmospheric gravity wave (AGW) is a typical phenomenon in the upper atmosphere. At
mid/low latitudes, climatological sources such as unstable barometric activity in the …

First results are presented from a 3-D, time dependent, high resolution, nested grid model
that has been developed to study mesoscale processes in the global, coupled thermosphere …

A complete model is proposed to analyze the electron density perturbation caused by
tsunami-induced gravity waves. Loss mechanisms of thermal conduction, viscosity, and ion …

Passive ground-based optical techniques have been used for over 15 years to study the
effects of auroral energy deposition on the composition of the lower thermosphere. These …

Multiscale modeling and high resolution three-dimensional simulations of nonequilibrium
ionospheric dynamics are major frontiers in the field of space sciences. The latest …

The observations made by Fabry-Perot interferometers (FPIs), radars, and satellites have
indicated that large vertical motion in the polar region is occasionally generated in the …

Many models of the thermosphere employ the one‐gas approximation where the governing
equations apply only to the total gas and the physical properties of the gas that depend on …

Simultaneous observations were conducted with a Fabry-Perot Interferometer (FPI) at a
wavelength of 557.7 nm, an all-sky camera at a wavelength of 557.7 nm, and the European …

This article is the second in a series of three papers reporting on observations of the 630.0
nm thermospheric airglow emission by two spatially separated scanning Doppler imagers …