Video Details      

Inertial Oscillation of a Vertical Rotating Draft



Supercells are rotating thunderstorms that can cause tornadoes and hail. This video discusses how accepted theory expects to see a pair of counter rotating supercells when tornadoes are born, but this phenomena is rarely seen in nature. A new theory of a single supercell rotation is discussed which involves new mathematical model called vertical rotating draft. Vertical rotating draft is shown as an animation and such factors as rotation around a vertical axis, horizontal convergence, buoyancy and the coriolis force are displayed. A short application of the mathematical model to an existing weather report concludes the video.                                               
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Video Information
Year: 1980
Genre: Documentary
Keywords: Nasa;Storms;Tornadoes;Weather;Supercell;
Duration: 00:07:51
Color: Yes
Sound: Yes
Amount of Motion: Medium
Language: English
Sponsor: Nasa
Contributing Organization: NASA
Transcript Available: No

Digitization Information
Digitization Date: 2001
Digitizing Organization: Open Video Project

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