Atmospheric pressure

static pressure exerted by the weight of the atmosphere

thumb|An analog barometer

unit of pressure defined as 101325 Pa

region of the atmosphere in which atmospheric pressure is lower than that of surrounding regions

pair of large copper hemispheres designed by Otto von Guericke

formula used to model how air pressure varies with altitude

thumb|right|280 px|An airlock on board Space Shuttle Atlantis

region where the atmospheric pressure at the surface of the planet is greater than its surrounding environment

equipment to maintain internal air pressure in aircraft or spacecraft

temperature of dry air parcels that have a total pressure and density equal to a moist parcel of air

atmospheric equation in meteorology