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Convection and Wind Vocabulary Words Vocabulary Word Actual Definition 1.Convection The transfer of heat by the movement of warmed matter (air or liquid) 2.Wind The movement of air from an area of high pressure to an area of low pressure. 3.Global Wind Large-scale movement of air due to the unequal heating of Earth’s surface 4.Corilois Effect The deflection of an object moving above the earth, rightward in the northern hemisphere and leftward in the southern hemisphere. 6.Anemometer Instrument used to measure wind speed 7.Polar Easterlies Wind belts that extend from the poles to 60° latitude in both hemispheres. 8.Prevailing Westerlies Wind belts found between 30° and 60° latitude in both hemispheres 9.Trade Winds Winds that blow from 30° latitude almost to the equator in both hemispheres 10.Doldrums An area around the equator where there is very little wind because the warm, rising air creates an area of low pressure 11.Jet Stream Narrow belts of high-speed winds that blow in the upper troposphere and lower stratosphere. 12.Local Wind Winds that move over a short distance and are caused by the heating of a small area of Earth’s surface Example/Picture