Geostrophic Wind: A steady horizontal motion of air along straight, parallel isobars or contours in an unchanging pressure or contour field. It is assumed that there is no friction, that the flow is straight with no curvature and there is no divergence or convergence with no vertical acceleration.

 

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Geostrophic Wind: A steady horizontal motion of air along straight, parallel isobars or contours in an unchanging pressure or contour field. It is assumed that there is no friction, that the flow is straight . . . View Full Definition

Wind Shear: The rate of wind speed or direction change with distance. Vertical wind shear is the rate of change of the wind with respect to altitude. Horizontal wind shear is the rate of change on a hor . . . View Full Definition

Wind Relieving (Vatayanasana): A balance pose. Lie flat on the floor. Bend one knee into your chest and hold the leg with both hands. Bring your chin down to your knee.

Wind Erosion Equation: An equation used to design wind erosion control systems, which considers soil erodibility, soil roughness, climate, the unsheltered distance across a field, and the vegetative cover on the ground.

Wind Erosion: The detachment and transportation of soil by wind. Wind erosion is a cropland management concern in the Plains states.

Wind Shift: The term applied to a change in wind direction of 45 degrees or more, which takes place in less than 15 minutes. It may the result of a frontal passage, from katabatic winds, sea breezes, or . . . View Full Definition

Wind Speed: The rate of the motion of the air on a unit of time. It can be measured in a number of ways. In observing, it is measured in knots, or nautical miles per hour. The unit most often used in th . . . View Full Definition

Wind Wave: An ocean or lake wave resulting from the action of wind on the water's surface. After it leaves its fetch area, it is considered a swell.

Wind Vane: An instrument that indicates the wind direction. The end of the vane which offers the greatest resistance to the motion of the air moves to the downwind position.

Wind Triangle: A simple triangular-shaped piece of cloth or leather worn around the neck of a motorcyclist for wind protection.