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The overall circulation of the stratosphere is termed as Brewer-Dobson circulation, which is a single-celled circulation, spanning from the tropics up to the poles, consisting of the tropical upwelling of air from the tropical troposphere and the extra-tropical downwelling of air.
10 gru 2020 · Coupling between the stratosphere and the troposphere contributes to extreme events at the Earth’s surface, and can help with predictability on timescales from weeks to decades, according to a ...
21 lip 1997 · Starting where the troposphere leaves off, the stratosphere (literally the 'layered' sphere) extends to an altitude of roughly 45 to 50 kilometers. Temperatures within the stratosphere increase...
The earth’s atmosphere is divided into four layers: the troposphere, stratosphere, mesosphere, and thermosphere (figure 4.1). These layers are defined by alternating decreases and increases in air temperature with height. The boundaries between the layers are called the tropopause, stratopause, and mesopause.
3 maj 2022 · Stratosphere. The stratosphere is the layer bounded by the tropopause at its base (12 km; 7.5 mi; 39,000 ft)) up to the stratopause (55 km; 31 to 34 mi; 164,000 to 180,000 ft). Air pressure within the stratosphere is only about 1/1000 of the pressure at sea level.
Air is roughly a thousand times thinner at the top of the stratosphere than it is at sea level. The stratosphere is very dry air, containing little water vapor. Because of this, few clouds are found in this layer.
At the top of the troposphere is a thin layer in which the temperature does not change with height. This means that the cooler, denser air of the troposphere is trapped beneath the warmer, less dense air of the stratosphere. Air from the troposphere and stratosphere rarely mix.
