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Cards In This Set
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The pressure exerted by the mass of air above a given point, usually expressed in milibars.
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Air pressure
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A unit for expressing atmospheric pressure. Sea-level pressure is normally close to 1012 mb
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Millibar
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A pressure of 1013.25 mb, 29.92 of mercury ,
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Standard atmospheric pressure
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An instrument that measures atmospheric pressure. The two most common barometers are the mercury and aneroid barometer.
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Barometer
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A type of barometer that uses mercury to measure atmospheric pressure. The height of the mercury column is a measure of atmospheric pressure.
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Mercury barometer
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An instrument designed to measure atmospheric pressure. It contains no liquid.
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Aneroid barometer
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The actual air pressure computed at the observing station.
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Station pressure
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The atmospheric pressure at mean sea level
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Sea-level pressure
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A line connecting points of equal pressure.
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Isobar
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A map that shows the distribution of sea-level pressures with isobars and weather phenomena
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Surface map
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An area of high pressure around which the wind blows clockwise in the Northern Hemisphere .
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Anticyclone
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A cyclone could and most often forms a long font in middle of the temperture
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Mid-latitude cyclone
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A chart showing variables,
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Isobaric map
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A line that connects point of equal elevation above a reference level, most often sea level
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Contour line
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An elongated area of high atmospheric pressure
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Ridge
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