Articles | Volume 21, issue 7
https://doi.org/10.5194/acp-21-5355-2021
https://doi.org/10.5194/acp-21-5355-2021
Research article
 | 
07 Apr 2021
Research article |  | 07 Apr 2021

Reanalysis intercomparison of potential vorticity and potential-vorticity-based diagnostics

Luis F. Millán, Gloria L. Manney, and Zachary D. Lawrence

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Short summary
We assess how consistently reanalyses represent potential vorticity (PV) among each other. PV helps describe dynamical processes in the stratosphere because it acts approximately as a tracer of the movement of air parcels; it is extensively used to identify the location of the tropopause and to identify and characterize the stratospheric polar vortex. Overall, PV from all reanalyses agrees well with the reanalysis ensemble mean.
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