What is the standard atmospheric pressure?

1.013*10e5pa

The higher the altitude, the smaller it is

Abbreviated as air pressure, also known as atmospheric pressure. Bear the weight of the atmospheric column per unit area. Meteorologically, it is often expressed in millibars or millimeters of the height of the mercury column. A standard atmospheric pressure is 1013.2 millibars, or equivalent to a column of mercury 760 millimeters high. Because the higher you are from the ground, the lower the air pressure, so the height can be calculated based on the change in air pressure in the vertical direction. In the horizontal direction, differences in air pressure can cause air flow, so it is one of the important meteorological factors in analyzing weather forecasts.

Atmospheric pressure is also called the pressure of the atmosphere. From the perspective of air molecular motion, it is the result of the combined effect of air molecular motion and the earth's gravity field. Under the combined effect of this, the impact force exerted by many air molecules on a plane per unit area at an instant is expressed as air pressure.

Where the density of air molecules is high, the average kinetic energy of air molecules is high. Therefore, the impact force is high and the air pressure is high

Varies according to altitude