Two-frequency approach to the theory of atmospheric acoustic-gravity waves

TL;DR

This paper analyzes atmospheric acoustic-gravity waves as oscillatory processes at two eigenfrequencies, providing explanations for observed properties and deriving solutions for hydrodynamic velocity and spectral characteristics.

Contribution

It introduces a two-frequency approach to model AGWs in the atmosphere, enhancing understanding of their oscillatory behavior and spectral features.

Findings

AGWs can be modeled as oscillations at two eigenfrequencies

Solutions for hydrodynamic velocity are obtained in real variables

The approach explains observed properties of AGWs

Abstract

The propagation of acoustic-gravity waves (AGWs) in the stratified isothermal atmosphere is analyzed using methods of the oscillation theory. It is shown that AGW in the atmosphere can be considered as an oscillatory process occurring at two eigenfrequencies. This consideration makes it possible to explain some of the observed properties of AGWs. The solutions for perturbed hydrodynamic velocity versus time and spectral characteristics are obtained in a real, but not complex, variables.