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The northern polar jet stream is the most important one for aviation and weather forecasting, as it is much stronger and at a much lower altitude than the subtropical jet streams and also covers many countries in the northern hemisphere, [38] while the southern polar jet stream mostly circles Antarctica and sometimes the southern tip of South ...
The jet stream, a ribbon of air that encircles the Northern Hemisphere at high altitudes, drives pressure changes that determine weather across North America. The jet stream’s wavy pattern ...
Atmospheric Rossby waves on Earth are giant meanders in high-altitude winds that have a major influence on weather. These waves are associated with pressure systems and the jet stream (especially around the polar vortices). [2] Oceanic Rossby waves move along the thermocline: the boundary between the warm upper layer and the cold deeper part of ...
Cirrus castellanus has cumuliform tops caused by high-altitude convection rising up from the main cloud body. [2] [6] Cirrus fibratus looks striated and is the most common cirrus species. [2] [6] Cirrus floccus species looks like a series of tufts. [7] Cirrus spissatus is a particularly dense form of cirrus that often forms from thunderstorms. [8]
While the exact altitude is unclear, high-altitude balloons typically fly around 60,000 feet or higher -- a level at which the balloons fly above the jet stream -- or the fast-moving current of ...
When following the jet stream to escape from the CAT, the aircraft must change altitude and/or heading. When the CAT arrives from one side of the airplane, the pilot must observe the thermometer to determine whether the aircraft is above or below the jet stream and then move away from the tropopause.
The plane was in the air less than 30 minutes before reaching speeds of over 800 mph over the Atlantic. Pilots have been exploiting the augmented jet stream to coast across the Atlantic Ocean at ...
Part of the air rising at 60° latitude diverges at high altitude toward the poles and creates the polar cell. The rest moves toward the equator where it collides at 30° latitude with the high-level air of the Hadley cell. There it subsides and strengthens the high pressure ridges beneath.