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In this study, we present the nonlinear interactions between gravity waves (GWs) and tides by using the 2D numerical model for the nonlinear propagation of GWs in the compressible atmosphere. During the propagation in the tidal background, GWs become instable in three regions, that is z = 75–85 km, z =90–110 km and z = 115–130 km. The vertical wavelength firstly varies gradually from the initial 12...
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