Articles | Volume 18, issue 23
Atmos. Chem. Phys., 18, 17099–17117, 2018
https://doi.org/10.5194/acp-18-17099-2018

Special issue: The SPARC Reanalysis Intercomparison Project (S-RIP) (ACP/ESSD...

Atmos. Chem. Phys., 18, 17099–17117, 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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Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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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
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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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