Atmospheric tracks are made of a complex system of gases that are made up of hydrogen, carbon dioxide, and nitrogen. These gases vary in pressure from one type of track to another, and are arranged in the atmosphere according to altitude. The pressure at each latitude influences the pressure at the poles and vice versa. In the North Atlantic, for example, the wind that blows over the coast at 20,000 feet is a lot more likely to blow at about 8,000 feet (the pressure at that altitude varies between 4,000 and 4,500 pounds per square inch).
When does a track become part of the jet stream?
A track begins as a line of high pressure along which air particles have a lower air content. At a certain height over the Earth, it begins to rise until the pressure drop out of it at a particular altitude. The track can continue above these altitudes without falling until it reaches certain heights where it no longer has any atmospheric support. Then at these heights the atmospheric conditions are just as favourable for high levels of jet streams to form.
How does the jet stream work?
The jet streams form in the atmosphere around high elevations as a result of the forces of the atmosphere acting on the motion of the particles of the atmosphere (also called winds). The more dense air is in the air above the high mountains and winds blow at a faster rate over those regions. Wind speeds over the lower altitudes slow down considerably, so the winds become lighter. As the air moves up on its way up the atmosphere over the lower slopes of high slopes, it absorbs more and more of the high sun and low wind energy from the sky and more and more of the sun and low wind energy from the lower slopes of lower slopes.
The wind speeds of high elevation (which is what is going on in the jet stream) are not the same as low elevation, because the difference is due to the air’s higher density. As air becomes denser, the air in question has a higher surface pressure and, when it moves up the air is more resistant to movement. And it is more resistant because the air above it at high pressure level has less surface velocity.
How high can a jet stream go?
For the jet stream to go as far as the Earth it needs to be very high – at least 16,000 to 18,000 feet (4,000 to 5,000m) above sea level, to be exact. This altitude also places the weather
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