What is the variation observed in temperature in the atmosphere with ...
It goes on decreasing first and shows an increase after 32000 m.
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What is the variation observed in temperature in the atmosphere with ...
Explanation:
Temperature variation in the atmosphere with respect to elevation is not straightforward and can be explained in terms of different layers of the atmosphere. The variation is known as the lapse rate.
1. Troposphere:
- In the troposphere, which is the lowest layer of the atmosphere where all weather occurs, temperature generally decreases with increasing elevation.
- This is because the troposphere is heated from the ground up, and as you go higher, the air becomes less dense and therefore cooler.
2. Tropopause:
- At the top of the troposphere lies the tropopause, which is a boundary where the temperature stops decreasing with height.
- In this layer, temperature remains relatively constant or even slightly increases with altitude.
3. Stratosphere:
- In the stratosphere, which is above the tropopause, temperature increases with height.
- This is due to the presence of the ozone layer, which absorbs ultraviolet radiation from the sun, heating the surrounding air.
4. Mesosphere and Thermosphere:
- In the mesosphere and thermosphere, temperature decreases with height again.
- This is because these layers are further away from the heating effects of the sun and are influenced by other factors such as the composition of gases in the atmosphere.
Conclusion:
- Therefore, the overall variation in temperature in the atmosphere with respect to elevation is not a simple linear relationship. It first decreases in the troposphere, levels off in the tropopause, increases in the stratosphere, and then decreases again in the mesosphere and thermosphere.
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