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Chapter 19 vocab

Chapter 19 vocab for Earth and Space Science

Air Pressure The force exerted by the weight of a column of air above a given point
Jet Stream Swift, High altitude winds (120-240 Kilometers per hour)
Trade Winds Two belts of wind that blow almost constantly from easterly directions and are located on the North and South sides of the tropical highs.
Monsoon Seasonal reversal of wind direction associated with large continents. In winter, the wind blows from land to sea. In summer, the wind blows from sea to land.
Barometer An instrument that measures atmospheric pressure.
Isobars a line connecting points of equal atmospheric pressure.
Westerlies A dominant west-to-east motion of the atmosphere that characterizes the regions on the poleward side of the subtropical highs.
Prevailing wind A wind that constantly blows from one direction more than from another
Pressure gradient The amount of pressure change occurring over a given distance
Cyclone A low pressure center characterized by a counterclockwise flow of air in the Northern Hemisphere
Polar Easterlies Winds that blow from the Polar high toward the subpolar low.
Anemometer An instrument used to determine wind speed
Coriolis Effect The force of Earth's rotation on all free-moving objects, including the atmosphere and oceans.
Anticyclone A high pressure center characterized by a clockwise flow of air in the Northern Hemisphere
Polar Front The stormy frontal zone separating cold air masses of polar origin from warm air masses of tropical origin
El nino The name given to the periodic warming of the ocean that occurs in the central and eastern Pacific
Popular Earth Science sets




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