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Stratosphere-troposphere Exchange

Climate is particularly sensitive to composition changes in the upper troposphere and lower stratosphere where much infra-red radiation escapes to space and ozone is most effective as a greenhouse gas.


Transport of ozone from the stratosphere is an important source of variability in tropospheric ozone, affecting climate and air pollution. Although ozone can be measured from many platforms, global high-resolution ozone measurements in the upper troposphere are missing, which hampers quantification of the tropospheric ozone budget and the role of transport from the stratosphere.