Atmospheric tide

Atmospheric tides are global-scale periodic oscillations of the atmosphere. In many ways they are analogous to ocean tides. Atmospheric tides can be excited by:

The regular day–night cycle in the Sun's heating of the atmosphere (insolation)
The gravitational field pull of the Moon
Non-linear interactions between tides and planetary waves.
Large-scale latent heat release due to deep convection in the tropics.

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