Articles | Volume 23, issue 2
https://doi.org/10.5194/acp-23-999-2023
https://doi.org/10.5194/acp-23-999-2023
Research article
 | 
20 Jan 2023
Research article |  | 20 Jan 2023

Case study on the influence of synoptic-scale processes on the paired H2O–O3 distribution in the UTLS across a North Atlantic jet stream

Andreas Schäfler, Michael Sprenger, Heini Wernli, Andreas Fix, and Martin Wirth

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Short summary
In this study, airborne lidar profile measurements of H2O and O3 across a midlatitude jet stream are combined with analyses in tracer–trace space and backward trajectories. We highlight that transport and mixing processes in the history of the observed air masses are governed by interacting tropospheric weather systems on synoptic timescales. We show that these weather systems play a key role in the high variability of the paired H2O and O3 distributions near the tropopause.
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