Upper Atmosphere

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Unit 1:
Dynamics of the stratosphere and the role of aviation

The structure of the stratosphere is very stable and movement of air between the troposphere and stratosphere is very slow compared to the movement of air within the troposphere itself.  However, this small air exchange is important and we look at its implications in this unit.

The second part of this unit looks at emissions from aircraft.  Aeroplanes fly at altitudes ranging from those in the upper troposphere to the lower stratosphere.  This region is very sensitive to emissions of any kind and pollution from growing air traffic is, therefore, very important to our climate.