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

Taguchi, Masakazu

doi:https://doi.org/10.5194/acp-17-11193-2017

Articles | Volume 17, issue 18

https://doi.org/10.5194/acp-17-11193-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

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

https://doi.org/10.5194/acp-17-11193-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 17, issue 18

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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Final revised paper (published on 21 Sep 2017)
Preprint (discussion started on 02 May 2017)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'Referee review', Anonymous Referee #1, 30 May 2017
- AC1: 'Response to Referee 1', Masakazu Taguchi, 27 Jul 2017
RC2: 'Review of "Comparison of large-scale dynamical variability .."', Anonymous Referee #2, 06 Jun 2017
- AC2: 'Response to Referee 2', Masakazu Taguchi, 27 Jul 2017
RC3: 'Reviewer comment (see attached PDF)', Anonymous Referee #3, 08 Jun 2017
- AC3: 'Response to Referee 3', Masakazu Taguchi, 27 Jul 2017

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

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

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.