Variational data assimilation for the optimized ozone initial state and the  short-time forecasting

Park, Soon-Young; Kim, Dong-Hyeok; Lee, Soon-Hwan; Lee, Hwa Woon

doi:https://doi.org/10.5194/acp-16-3631-2016

Articles | Volume 16, issue 5

https://doi.org/10.5194/acp-16-3631-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

Coupled chemistry–meteorology modelling: status and...

https://doi.org/10.5194/acp-16-3631-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 16, issue 5

Research article

|

17 Mar 2016

Research article |

| 17 Mar 2016

Variational data assimilation for the optimized ozone initial state and the short-time forecasting

Soon-Young Park, Dong-Hyeok Kim, Soon-Hwan Lee, and Hwa Woon Lee

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Final revised paper (published on 17 Mar 2016)
Preprint (discussion started on 20 Oct 2015)

Interactive discussion

Status: closed

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

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- Supplement

RC C9276: 'referee comment', Anonymous Referee #2, 15 Nov 2015
- AC C11398: 'Response to reviewer 2', Soon-Young Park, 12 Jan 2016
RC C9278: 'referee comment', Anonymous Referee #2, 15 Nov 2015
RC C9640: 'review', Anonymous Referee #1, 21 Nov 2015
- AC C11396: 'Response to reviewer 1', Soon-Young Park, 12 Jan 2016
- AC C11397: 'Response to reviewer 1', Soon-Young Park, 12 Jan 2016

Peer-review completion

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

AR by Soon-Young Park on behalf of the Authors (21 Jan 2016)

ED: Publish as is (17 Feb 2016) by Alexander Baklanov

AR by Soon-Young Park on behalf of the Authors (29 Feb 2016)

Short summary

In order to improve the predictability of air quality, we optimize initial ozone state throughout the 4D-Var data assimilation. Previously developed code for the data assimilation has been modified to consider background error in matrix form, and various numerical tests are conducted. A surface observational assimilation is conducted and the statistical results for the 12 h assimilation periods show a 49.4 % decrease in RMSE and a 59.9 % increase in IOA.