Gravity Waves

I didn’t know that atmospheric gravity waves existed – at least not by that name – until I read the NASA article, “Gravity Waves Make Tornadoes.” I knew that gravity waves on a cosmological scale exist that are generated by high-density stars or black holes. Gravitational waves have been indirectly detected by observing deep space events, but have yet to be detected on Earth.

Anyhow, getting back to the atmospheric gravity waves, these are generated in the troposphere by frontal systems or by airflow over mountains. This interesting time-lapse video demonstrates the motion of gravity waves as they propagated over Iowa in 2006.