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when air pressure increases, the mercury in the tube rises; invented by Torricelli
The Corolis effect, friction, and pressure gradients(differences) all influence or control what?
influences wind direction, the stronger the wind, the greater the deflection of the Corolis effect
What is associated with descending air, clear weather, & relatively dry conditions
continuous pressure belt
located in the Southern Hemisphere because there are no landmasses to interrupt that pressure belt
seasonal changes in wind direction associated with large landmasses and adjacent water bodies; occur during summer in India
generated because the warmer air on the mountains is less dense and glides up along the slope generating a breeze
examples of local winds; after sunset in mountainous areas, cold air moves downslope into the valley
phenomenon associated with surface temperatures in the eastern Pacific that are colder than average
phenomenon associated with surface temperature in the eastern Pacific that are warmer than average
What deflects all free- moving objects to the right of their path of motion in the Northern Hemisphere?
If the Earth didn't rotate then the air at the equator would rise and move toward the poles. What is this called?
Where does the land heat up more during the daylight hours than does the adjacent body of water?
In coastal areas during the summer
What causes wind?
Wind is the result of horizontal differences in air pressure. Air flows from areas of higher pressure to areas of lower pressure.
What does the spacing of isobars indicate?
it shows the amount of pressure change occurring over a given distance
the apparent deflective force of Earth's rotation on all free-moving objects, including the atmosphere and oceans; Deflection is to the right in the N. Hemisphere and to the left in the S. Hemisphere
a low-pressure center characterized by a counterclockwise flow of air in the Northern Hemisphere
a high-pressure center characterized by a clockwise flow of air in the Northern Hamisphere
the dominant west-to-east motion of the atmosphere that characterizes the regions on the poleward side of the subtropical highs
the name given to the periodic warming of the ocean that occurs in the central and Eastern Pacific; A major El Nino episode can cause extreme weather in many parts of the world
two belts of winds that blow almost constantly from easterly directions and are located on the north and south side of the subtropical highs
in the global pattern of prevailing winds that blow from the polar high toward the subpolar low; These winds, however, should not be thought of as persistent winds, such as trade winds
the stormy frontal zone separating cold air masses of polar origin from warm air masses of tropical origin
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