Discrepancies between MICS-Asia III simulation and observation for surface ozone in the marine atmosphere over the northwestern Pacific Asian Rim region

Akimoto, Hajime; Nagashima, Tatsuya; Kawano, Natsumi; Jie, Li; Fu, Joshua S.; Wang, Zifa

doi:https://doi.org/10.5194/acp-20-15003-2020

Articles | Volume 20, issue 23

https://doi.org/10.5194/acp-20-15003-2020

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

Special issue:

Regional assessment of air pollution and climate change over...

https://doi.org/10.5194/acp-20-15003-2020

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

Articles | Volume 20, issue 23

Research article

|

04 Dec 2020

Research article |

| 04 Dec 2020

Discrepancies between MICS-Asia III simulation and observation for surface ozone in the marine atmosphere over the northwestern Pacific Asian Rim region

Hajime Akimoto, Tatsuya Nagashima, Natsumi Kawano, Li Jie, Joshua S. Fu, and Zifa Wang

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Final revised paper (published on 04 Dec 2020)
Supplement to the final revised paper
Preprint (discussion started on 06 Apr 2020)

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 manuscript titled “Discrepancies between MICS-Asia III Simulation and Observation for Surface Ozone in the Marine Atmosphere over the Northwestern Pacific Asian Rim Region“', Anonymous Referee #1, 30 Apr 2020
- AC1: 'Answqe to Referee #1', Hajime Akimoto, 08 Jun 2020
RC2: 'Comments on Akimoto et al., (2020) in ACPD', Anonymous Referee #2, 03 May 2020
- AC2: 'Answer to Referee #2', Hajime Akimoto, 08 Jun 2020
RC3: 'Review comments on “Discrepancies between MICS-Asia III Simulations and Observations for Surface ozone in the Marine Atmosphere over the Northwestern Pacific Asian Rim Region” by Akimoto et al.', Anonymous Referee #3, 05 May 2020
- AC3: 'Answer to Referee #3', Hajime Akimoto, 08 Jun 2020

Peer-review completion

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

AR by Hajime Akimoto on behalf of the Authors (08 Jun 2020) Author's response Manuscript

ED: Referee Nomination & Report Request started (23 Jun 2020) by Qiang Zhang

RR by Anonymous Referee #3 (04 Jul 2020)

RR by Anonymous Referee #1 (09 Jul 2020)

Suggestions for revision or reasons for rejection

Review of the manuscript titled “Discrepancies between MICS-Asia III Simulation and Observation for Surface Ozone in the Marine Atmosphere over the Northwestern Pacific Asian Rim Region“ By Akimoto et al.

In Comparison with the previous manuscript, I noticed that there are big improvements for interpreting the O3 modeling results against observations. Nevertheless based on three referees’ comments and respones, I found a couple of deficiency problems with their responses. I think if the authors make a couple of additional analysis for quantitative discussion, the current manuscript will be much more improved. (I guess others raised by three Referees were now mostly answered by authors). The primary deficiency problem is that the authors haven't fully answered Referee3’s question yet, and I agreed on the raising the question (by Referee 3), regarding marine boundary layer (MBL) fluctuations (i.e., how high the MBL is in meters) association with LRT vs. local photochemical reactions at Oki. Authors need to rule out the possibility of errors in how well model simulated MBL heights against measurement (if multiple models would not be possible, just ‘one remote (island) measurement against a single model approach would be enough for this purpose). This will make the role of the surface dry deposition be emphasized more.
Another deficiency is the sensitivity result (i.e., applying doubling and decupling of dry deposition velocities : it would be also probably possible to carry out based on just a single model (or employing a simple box model and note the results briefly), rather than only employing MICS-Asia III frame. This is because probably authors check to what degree the diurnal △O3 variations (i.e., daily O3 max. - daily O3 min, as indicated in Fig. 3a and 3b at Hedo and Oki) might become observed levels. This process will check the long-term levels of O3 as well as model’s local photochemical reaction build-up capability and in turn authors may reach the conclucion in more robust way.

Referee Report: PDF

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RR by Anonymous Referee #2 (10 Jul 2020)

ED: Reconsider after major revisions (22 Jul 2020) by Qiang Zhang

AR by Hajime Akimoto on behalf of the Authors (07 Sep 2020) Author's response

ED: Referee Nomination & Report Request started (23 Sep 2020) by Qiang Zhang

RR by Anonymous Referee #1 (27 Sep 2020)

RR by Anonymous Referee #2 (07 Oct 2020)

ED: Publish as is (21 Oct 2020) by Qiang Zhang

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Short summary

In order to perform proper model simulation of ozone near the ground in the coastal area of northeastern Asia, it has been found that it is very important to select appropriate dry deposition velocities of ozone on the oceanic water of specific area of the northwestern Pacific. Empirical measurement of the mixing ratios and dry deposition flux of ozone over the ocean in this area is highly recommended.