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Conclusions and perspectives

TOVS data, covering the entire globe,  and available for the last 2 decades permit a spatio-temporal analysis of the variability of the temperature in the stratosphere. With the least square method, it is possible to delineate the QBO and ENSO influence, and it should be possible to isolate the long term linear trend from the other terms of forcing, provided the entire data set is used.

In the future, we plan to introduce an NAO term in Equation 1. In addition, similar regression experiments will be conducted with FUB data.