Articles | Volume 18, issue 23
https://doi.org/10.5194/acp-18-17099-2018
https://doi.org/10.5194/acp-18-17099-2018
Research article
 | 
04 Dec 2018
Research article |  | 04 Dec 2018

Quantifying the variability of the annular modes: reanalysis uncertainty vs. sampling uncertainty

Edwin P. Gerber and Patrick Martineau

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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Edwin Gerber on behalf of the Authors (26 Oct 2018)  Author's response   Manuscript 
ED: Publish subject to minor revisions (review by editor) (05 Nov 2018) by Peter Haynes
AR by Edwin Gerber on behalf of the Authors (06 Nov 2018)  Author's response   Manuscript 
ED: Publish as is (13 Nov 2018) by Peter Haynes
AR by Edwin Gerber on behalf of the Authors (19 Nov 2018)
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Short summary
The annular modes characterize the variability of the extratropical circulation. We show that they are extremely consistent across all reanalyses during the satellite era (1979 onward). Consequently, uncertainty in the annual cycle of variability of the tropospheric jet streams and their coupling with the stratospheric polar vortices is dominated by sampling uncertainty. Pre-satellite reanalysis of the Northern Hemisphere appears to be of high quality and can help reduce this uncertainty.
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