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Message: <blockquote data-quote="djHiran" data-source="post: 5743063" data-attributes="member: 6429">[Nature] Gravity Waves<img src="http://lh5.ggpht.com/_Msub-1hLuSk/SfdfviBPX4I/AAAAAAAAAs0/GiZ6Fpxcrvo/zrtn_011p7266d0e2_tn.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /> <img src="http://media.alpha.bimedia.net/images/KCRG_WEATHER_MARIONCLOUD.JPG" alt="" class="fr-fic fr-dii fr-draggable " style="" /> The undulating pattern of a Gravity Wave is caused by air displaced in the vertical plain, usually as a result of updrafts coming off the mountains or during thunderstorms. A wave pattern will only be generated when the updraft air is forced into a stable air pocket. The upward momentum of the draft triggers into the air pocket causes changes in the atmosphere, altering the fluid dynamics. Nature then tries to restore the fluid changes within the atmosphere, which present in a visible oscillating pattern within the cloud. </blockquote>

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