Articles | Volume 17, issue 18
https://doi.org/10.5194/acp-17-11193-2017
https://doi.org/10.5194/acp-17-11193-2017
Research article
 | 
21 Sep 2017
Research article |  | 21 Sep 2017

Comparison of large-scale dynamical variability in the extratropical stratosphere among the JRA-55 family data sets: impacts of assimilation of observational data in JRA-55 reanalysis data

Masakazu Taguchi

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AR by Masakazu Taguchi on behalf of the Authors (28 Jul 2017)  Author's response   Manuscript 
ED: Publish as is (08 Aug 2017) by Peter Haynes
AR by Masakazu Taguchi on behalf of the Authors (17 Aug 2017)
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Short summary
This study explores dynamical variability of the polar vortex in the stratosphere among the Japanese 55-year Reanalysis family data. Results show that the assimilation of conventional (surface and balloon) observations increases the dynamical variability as the vortex in the model is more quiescent without the assimilation. The assimilation of satellite data in addition to the conventional data strengthens and/or advances some vortex weakening events, although the impacts appear in various ways.
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