Counter Clockwise
What way does a cyclone go in the Northern Hemisphere
Clockwise
What way does an anticyclone go in the Northern Hemisphere
Air Pressure
The force exerted by the weight of a column of air above a given point
Barometer
An instrument that measures atmospheric pressure
Pressure Gradient
The amount of pressure change occurring over a given distance
Coriolis Effect
The apparent deflective force of Earths rotation on all free moving objects including the atmosphere and oceans
Jet Stream
Swift, high altitude winds
Cyclone
A low pressure system
Anticyclone
A high pressure system
Trade winds
Two belts of wind that blow almost constantly from easterly directions and are located on the north and south sides of the subtropical highs
Westerlies
The dominant east to west motion of the atmosphere that characterizes the regions on the polar ward side of the subtropical highs
Polar Easterlies
In the global pattern of prevailing winds that blow from the polar high toward the subpolar low
Polar Front
The stormy frontals zone separating cold air masses of polar origin from warm air masses of tropical origin
Monsoon
Seasonal reversal of wind direction associated with large continents
Prevailing wind
A wind that constantly blows from one direction more then from another
Anemometer
An instrument used to determine wind speed
El Ni�o
The name given to the periodic warming of the ocean that occurs in the central and eastern Pacific