Community Research and Development Information Service - CORDIS

Temperature trend and variability in the stratosphere

Several data series of local and global stratospheric temperature over the last 20 or 40 years have been analyzed within TASTE on order to evaluate causes of antural inter-annual variability of the stratosphere and to estimate if the negative temperature trends observed during the last 40 years is significant. In a first step, the quality of the database has been evaluated by the intercomparison between data series. In a second step, temperature perturbations due to natural phenomena like QBA, ENSO, solar cycle and volcanic eruptions have been estimated in order to assess the significance of trends detected in data series. In the final step, an attempt has been made to determine the amplitude of the stratospheric temperature trend in local and global data.


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