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  1. The pressure below sea level is in a virtual air column or as achieved with an air filled closed pipe connected to the atmosphere. Elevation above sea level - in feet and meter - with barometric and atmospheric pressure - <i>inches mercury, psia, kg/cm<sup>2</sup> and kPa</i>.

  2. The mean sea-level pressure (MSLP) is the atmospheric pressure at mean sea level. This is the atmospheric pressure normally given in weather reports on radio, television, and newspapers or on the Internet . The altimeter setting in aviation is an atmospheric pressure adjustment.

  3. Explore pressure under and above water. See how pressure changes as you change fluids, gravity, container shapes, and volume.

  4. Games and Simulations. The UCAR Center for Science Education has a collection of games and simulations related to weather, climate, atmospheric science, and space weather education. Test your knowledge with one of our games or gain a deeper understanding of earth science through a simulation.

  5. Atmospheric pressure is the force per unit area exerted by a body of air above a specified area (called an atmospheric column). It is expressed in several different systems of units, including millimeters (or inches) of mercury, pounds per square inch (psi), millibars (mb), or standard atmospheres.

  6. 24 maj 2024 · Under average sea level conditions the atmospheric pressure is 1013.2 millibars (29.92 inches of mercury). Average sea level pressure serves as the division between what we call "high pressure" and "low pressure" at the surface.

  7. Air pressure. Air pressure variation with altitude is much simpler than temperature variation. Standard pressure at sea level is defined as 1 atmosphere ( = 1013 millibars = 14.7 lb/in 2 = 101.3 kilopascals). Pressure drops steadily with altitude; at roughly 5,500 meters it is down to 1/2 of the sea level value.

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