Matching Pairs topic 7 weather part 2 winds and air pressureOnline version match the term to the defintion by Susan Brown 1 easterly moving air at the top of the troposphere; convection cells 2 horizontal movement of air parallel to Earth's surface 3 difference in air pressure for a specific distance 4 instrument used to measure wind speed 5 lowest zone of the atmosphere where people live wind troposphere anemometer air pressure gradient jet streams 1 wind from the direction that is most common at a particular place or season. 2 cause of spinning directions of winds; counterclockwise in southern hemisphere and clockwise in northern hemisphere 3 high wind speeds 4 extreme weather changes caused by the shifting wind and pressure belts in parts of Asia and India; seasonal very high rain and winds 5 low wind speeds 6 series of zones where winds move primarily in a specific direction over time; in the Northern Hemisphere to the right steep pressure gradient; close isobars monsoons planetary wind belts prevailing winds far apart isobars Coriolis effect 1 low pressure with wind blowing toward the center 2 large body of air in the troposphere with similar characteristics of pressure, moisture and temperature 3 in the northern hemisphere highs spin 4 in the northern hemisphere lows spin 5 high pressure with wind blowing away from the center 6 where two air masses of different characteristics meet counterclockwise toward center air mass anticyclone front cyclone clockwise away from center 1 when two adjacent air masses stay in the same place 2 boundary of opposing wedges of cold air masses that lift a warm air mass causing mid latitude cyclones 3 boundary of an advancing warm air mass and a retreating cold air mass 4 boundary of an advancing cold air mass and a warmer air mass 5 ever-changing boundary between the cold air masses of the poles and the warmer air masses of the equator occluded front cold front warm front polar front stationary fronts