Layers of the Atmosphere

Layers of the Atmosphere - Layers of the Atmosphere The...

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Layers of the Atmosphere The atmosphere of the Earth may be divided into several distinct layers, as the following figure indicates. Layers of the Earth's atmosphere The Troposphere The troposphere is where all weather takes place; it is the region of rising and falling packets of air. The air pressure at the top of the troposphere is only 10% of that at sea level (0.1 atmospheres). There is a thin buffer zone between the troposphere and the next layer called the tropopause . The Stratosphere and Ozone Layer Above the troposphere is the stratosphere , where air flow is mostly horizontal. The thin ozone layer in the upper stratosphere has a high concentration of ozone, a particularly reactive form of oxygen. This layer is primarily responsible for absorbing the ultraviolet radiation from the Sun. The formation of this layer is a delicate matter, since only when oxygen is produced in the atmosphere can an ozone layer form and prevent an intense flux of ultraviolet radiation from reaching the surface, where it is quite hazardous to the evolution of life. There is
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This note was uploaded on 12/04/2011 for the course ANT ANT2000 taught by Professor Monicaoyola during the Fall '10 term at Broward College.

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Layers of the Atmosphere - Layers of the Atmosphere The...

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