R. Michael Jones

TL;DR: In this article, the authors used an Fe Boltzmann lidar to characterize the vertical wavelengths, periods, vertical phase speeds, frequency spectra, and vertical wave number spectra of stratospheric gravity waves from 30 to 50 km altitude.

TL;DR: In this article, an extension of Fermat's principle, in which the complex phase refractive index is used instead of only the real part, expresses both of these criteria and leads to a corresponding extension of Snell's law or of Haselgrove's equations to calculate the ray path.

TL;DR: It is found that large values of E¯pm during wintertime occur when McMurdo is well inside the polar vortex, and E¯PM variations in winter are mainly due to variations of gravity wave generation in the troposphere and stratosphere and Doppler shifting by the mean stratospheric winds.

TL;DR: In this article, the spectral features of infrasound observed in the ionosphere and believed to be radiated by severe thunderstorms were modeled mathematically, and the dominant 2-5-min wave period was explained as an effect of atmospheric filtering; shorter periods are excessively attenuated by absorption in transit to ionosphere, and longer periods are attenuated in portions of the atmosphere where the waves are evanescent.

TL;DR: In this paper, the authors suggest that the strata of strong echo returns frequently revealed by remote-sensor records of the stably stratified planetary bound layer (PBL) represent the wavefronts of dissipative waves (viscous and thermal-conduction waves) excited by gravity-wave encounters with the PBL and the earth's surface.