Abstract—

A new approach to the study of acoustic-gravity waves in the Earth’s atmosphere in the presence of vertical temperature inhomogeneity is proposed. Using this approach, the local AGW dispersion equation was obtained for the atmosphere with a small vertical temperature gradient. The modification of the acoustic and gravitational regions of freely propagating AGWs on the spectral plane \(\left( {\omega ,{{k}_{x}}} \right)\) depending on the temperature gradient was investigated. It is shown that the acoustic and gravitational regions approach each other with a positive temperature gradient, while the distance between them increases with a negative gradient. On the spectral plane, the indicators of the location of the acoustic and gravitational regions of freely propagating AGWs are the dispersion curves of the non-divergent and inelastic horizontal wave modes. The possibility of overlapping the acoustic and gravitational regions of AGWs in a nonisothermal atmosphere was investigated.

中文翻译：

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大气温度垂直非均质性对声重力波传播的影响

摘要-

提出了一种在垂直温度不均匀的情况下研究地球大气中重力波的新方法。使用这种方法，可以获得垂直温度梯度小的大气的局部AGW弥散方程。在频谱平面\（\ left（{\ omega，{{k} _ {x}}} \ right）\）上自由传播的AGW的声和重力区域的修改根据温度梯度进行了研究。结果表明，声区和重力区以正温度梯度彼此接近，而它们之间的距离则以负梯度增大。在光谱平面上，自由传播的AGW的声和重力区域的位置的指标是非发散和非弹性水平波模式的色散曲线。研究了在非等温气氛中AGW的声和重力区域重叠的可能性。