Gravity Waves (not to be mixed up with Gravitational Waves) occur, if airflow is perturbed by mountains


GravityWaves (not to be mixed up with Gravitational Waves) occur, if airflow is perturbed by mountains


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About the Author: livescience

2 Comments

  1. If wind passes a mountain, it has to rise. Since the atmosphere becomes less dense with altitude (e.g. ‘thinner’), the air descends after passing the mountain ridge. Due to inertia, it descents below its ‘equilibrium’ altitude. Here, the surrounding air is denser (‘thicker’) and it rises again. This process repeats periodically.

    [This](https://www.youtube.com/watch?v=yXnkzeCU3bE) is the source video.

  2. How come the waves are moving to the right, but the clouds themselves seem to be moving almost directly away from the camera?

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