Jet streams are currents of air that move accross earth taking cold and warm air, the polar jets carry cold air from the poles to the continents, and the subtropical jets carry warm humid streams of air from the tropics towards the poles the southern subtropical jet stream arrives to South Africa, making it a warmer location eventhough it is located near the antartic.
The standard atmospheric pressure that is measured formthe sea levels to the surface to the high altitudes of the earth is the 1013.25 millibar or is 17 pounds per inches as the air over the higher altitudes is more sensitive and it's measured in pascal.
<u>And are a function of the plant's mass and the radius of the surface and the amount of the distribution of the gases and the vertical distribution of the air. And hence is calculated by the values that are reduced to the mean sea levels. </u>
