Definition of «surface air pressure»

Surface air pressure refers to the weight of the atmosphere pressing down on a particular surface. It is measured in units called millibars or inches of mercury, with lower pressures indicating higher altitude and less atmospheric pressure, while higher pressures indicate closer proximity to sea level and greater atmospheric pressure. Surface air pressure can vary greatly depending on weather conditions, geographical location, and time of day, but it is an important factor in determining temperature, humidity, wind patterns, precipitation, and overall climate.

Sentences with «surface air pressure»

As for accelerated warming in the Arctic, that takes increasingly negative NAO / AO episodes to do that, while all the GCM's predict increasingly lower near surface air pressure in the Arctic, implying more positive NAO / AO conditions. (judithcurry.com)
The AO is a measurement of surface air pressure at the high latitudes over and north of Greenland. (washingtonpost.com)
The figure shows how surface air pressure changed throughout Martian history. (sciencedaily.com)
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