Geography
Answer
The chief characteristics of stratosphere are-
- The air is thin, cold and dry. The temperature is about -55°C.
- The Ozone layer lies within the stratosphere. Ozone is generally found between the altitudes of 20 and 50 km.
- Ozone absorbs the ultraviolet solar radiation coming from above. The insolation received from the Sun is equal to that lost by it. That is why the temperature of the layer is constant. In the higher levels, however, temperature increases with height.
- The lower layer of the stratosphere has a virtual absence of water vapour and has constant temperature conditions, therefore, it is ideal for flying jet aircraft.
- Temperature rises from -60°C at the base of the stratosphere to 0°C at stratopause.
- The upper limit of the stratosphere is known as stratopause.
Related Questions
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