The ABC-DA system (v1.4): a variational data assimilation system for convective-scale assimilation research with a study of the impact of a balance constraint

Bannister, Ross Noel

doi:https://doi.org/10.5194/gmd-13-3789-2020

Articles | Volume 13, issue 8

https://doi.org/10.5194/gmd-13-3789-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-13-3789-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 13, issue 8

Model description paper

|

27 Aug 2020

Model description paper |

| 27 Aug 2020

The ABC-DA system (v1.4): a variational data assimilation system for convective-scale assimilation research with a study of the impact of a balance constraint

Ross Noel Bannister

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Final revised paper (published on 27 Aug 2020)
Preprint (discussion started on 03 Feb 2020)
Supplement to the preprint

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Review of: The “ABC-DA system” (v1.4): a variational data assimilation system for convective scale assimilation research with a study of the impact of a balance constraint', Anonymous Referee #1, 30 Apr 2020
- AC1: 'Response to referee 1', Ross Bannister, 09 Jun 2020
RC2: 'data assimilation', Anonymous Referee #2, 03 May 2020
- AC2: 'Response to referee 2', Ross Bannister, 09 Jun 2020
SC1: 'Review of the paper', Pierre Gauthier, 15 May 2020
- AC3: 'Response to short comment 1.', Ross Bannister, 09 Jun 2020

Peer-review completion

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

AR by Ross Bannister on behalf of the Authors (19 Jun 2020) Author's response Manuscript

ED: Publish subject to minor revisions (review by editor) (14 Jul 2020) by Simon Unterstrasser

AR by Ross Bannister on behalf of the Authors (16 Jul 2020) Author's response Manuscript

ED: Publish as is (22 Jul 2020) by Simon Unterstrasser

AR by Ross Bannister on behalf of the Authors (22 Jul 2020) Manuscript

Short summary

Forecasting models start from initial conditions, and data assimilation (DA) is the way that initial conditions are found from a combination of previous model data and latest observations. The ABC model is a simplified convective-scale model developed previously, and ABC-DA is the version of this system that includes the DA capability. This system is described in the present paper, and its performance is demonstrated with a range of options that control how the data assimilation is done.