Wind Engineering and Fluids Laboratory - Colorado State University research group studying wind effects on structures, as well as dispersion of pollutants, using boundary-layer wind tunnels. Weather Elements: Sea and Land Breezes - Discussion about wind direction changes that take place at coastal regions. Includes diagrams. Air Pressure and Wind - Educational site linking the air pressure and winds to gravity, the Coriolis Force, friction and centrifugal force. National Weather Service: Global Circulations - Explains how the Earth's rotation results in three circulations, the Hadley, Ferrel and Polar cells. The Beaufort Wind Scale - Describes this scale of wind speed devised in 1805 by Admiral Sir Francis Beaufort. Wind Engineering Research Center, Texas Tech University - Large collection of informational material about the natural wind and its effects on civil engineering infrastructure made up of buildings, bridges, transmission-line towers, and various other structures.