Atmospheric pressure is the pressure exerted by the atmospheric air is measured with the barometer and unity are the atmospheres, pascals ...
Within are pressure isobars are geographical points of equal pressure.
HIGH PRESSURE There are areas where there are no clouds, usually long time ago so there isobars high temperatures are mild.
have horizontal movements are parallel to the surface and often cause winds.
LOW PRESSURE There are areas where there are clouds which may end up in the isobars rainfall are therefore sharp temperature drops.
have vertical movements where air rises and cools as it cools it condenses and forms clouds also Call storms.
Normally there is pressure on a flat area and the coast on a mountain peak.
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