a body of air that has about the same temperature and humidity throughout

a measure of the weight of the atmosphere on a given area of the surface of the Earth; barometric pressure

an instrument used to measure wind speed

an envelope of mixed gases are held to the Earth by gravity; the most dense gases are near the surface of the Earth

when temperature differences cause fluids to expand and move; the less dense areas continually rise, and the more dense areas continually sink creating a cyclical current

the effect of the Earth’s rotation on the path of air and water; causes the path to curve

currents flowing far beneath the surface of the ocean; driven by density differences

period during which surface waters in the Pacific are unusually warm; impacts temperature and rainfall in the U.S.

periods during which surface waters in the Pacific are unusually cool; impacts temperature and rainfall in the U.S.

amount of water vapor present in the air; relative humidity

narrow band of high speed wind high in the atmosphere; moves west to east in the Northern Hemisphere

global wind located at mid-latitude; mostly blows in one direction

instrument used to measure humidity (moisture) in the air