Geography?

Jessyjess · #1 Mar 22, 2003, 02:20 PM

Velocity of wind flow is primaqrly determined by what?
Gravity? Conduction? Topography? Or air pressure?

Starman · Jun 7, 2003, 12:05 PM

Wind is simply air movement.
Air movement on earth is primarily caused by
differences in air pressure which in turn are caused by atmospheric temperatures variations.

But even if the air were all the same temperature, wind would still be produced by the earth's rotation in the same manner that earth's rotation causes currents at sea.

WHAT CAUSES WIND? - WHAT CAUSES WIND? METEOROLOGIST JEFF HABY Air is set in motion by the Pressure Gradient Force (PGF). This, as you well know, is ...
http://www.theweatherprediction.com/habyhints/85/

WEATHERMINDS - ... Together, the sun's heat and the Earth's rotation keep the atmosphere churned up. When weather experts talk about wind direction, they're talking about the ...
http://www.wfaa.com/specialreports/2...mind/wind.html

Of course, the greater the pressure differential the faster the air will move.



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