LIVAS: a 3-D multi-wavelength aerosol/cloud database based on CALIPSO and EARLINET

Amiridis, V.; Marinou, E.; Tsekeri, A.; Wandinger, U.; Schwarz, A.; Giannakaki, E.; Mamouri, R.; Kokkalis, P.; Binietoglou, I.; Solomos, S.; Herekakis, T.; Kazadzis, S.; Gerasopoulos, E.; Proestakis, E.; Kottas, M.; Balis, D.; Papayannis, A.; Kontoes, C.; Kourtidis, K.; Papagiannopoulos, N.; Mona, L.; Pappalardo, G.; Le Rille, O.; Ansmann, A.

doi:https://doi.org/10.5194/acp-15-7127-2015

Articles | Volume 15, issue 13

https://doi.org/10.5194/acp-15-7127-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-15-7127-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 15, issue 13

Research article

|

01 Jul 2015

Research article |

| 01 Jul 2015

LIVAS: a 3-D multi-wavelength aerosol/cloud database based on CALIPSO and EARLINET

V. Amiridis, E. Marinou, A. Tsekeri, U. Wandinger, A. Schwarz, E. Giannakaki, R. Mamouri, P. Kokkalis, I. Binietoglou, S. Solomos, T. Herekakis, S. Kazadzis, E. Gerasopoulos, E. Proestakis, M. Kottas, D. Balis, A. Papayannis, C. Kontoes, K. Kourtidis, N. Papagiannopoulos, L. Mona, G. Pappalardo, O. Le Rille, and A. Ansmann

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Final revised paper (published on 01 Jul 2015)
Preprint (discussion started on 23 Jan 2015)

Interactive discussion

Status: closed

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

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RC C314: 'Review comments of “LIVAS: a 3-D multi-wavelength aerosol/cloud climatology based on CALIPSO and EARLINET” by Amiridis et al', Anonymous Referee #2, 19 Feb 2015
- AC C2668: 'reply to anonymous referee 2', Vassilis Amiridis, 17 May 2015
RC C1237: 'Referee Comment', Anonymous Referee #1, 31 Mar 2015
- AC C2667: 'reply to anonymous referee 1', Vassilis Amiridis, 17 May 2015

Peer-review completion

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

AR by Vassilis Amiridis on behalf of the Authors (17 May 2015) Manuscript

ED: Reconsider after minor revisions (Editor review) (20 May 2015) by Matthias Tesche

Dear Vassilis,

thank you for providing me with a comprehensive answer to the reviewer's comments.
I would like to get your thoughts on the issues listed below before I can accept your paper for publication in ACP.

With best regards,
Matthias

- Referee #1 has concerns about the presentation of the LIVAS aerosol model. While you added two new tables to the manuscript, I have the feeling that these concerns have not been fully resolved. The LIVAS aerosol model is presented in Section 3.1. However, it is not stated (at least at this point in the manuscript) how the typical size distributions and refractive indices have been derived or where they have been taken from. The relevant information seems to be scattered all over Section 3.1. I have the feeling that the manuscript would benefit from restructuring Section 3.1. Why do you not first focus on the properties of the LIVAS aerosol model (i.e. the typical size distributions and refractive indices for the respective aerosol types) including how you came up with these values? In that context, it might also be worthwhile to present the content of Section 3.1.4 earlier in the text.

- CALIOP's vertical resolution for measurements at 532 nm is 30 m from the surface to 8.3 km height, 60 m from 8.3 to 20.2 km height, and 180 m from 20.2 to 30.1 km height. For 1064 nm it's 60 m from the surface to 20.2 km height and 180 m from 20.2 to 30.1 km height.

- regarding the LIVAS processing chain: Did I understand correctly that individual CALIPSO profiles are allocated to grid boxes of 1 x 1 degree, converted, and then averaged to obtain a mean profile for the respective grid box? It might be worthwhile to clarify this as the reader might mistake your step "1 x 1 grid" in Figure 9 as already producing an averaged profile.

- regarding the LIVAS dust lidar ratio of 85 sr (Table 2 and Figure 7): Can you comment on why it is so much larger than measured values of 50-60 sr? There must be some unrealistic feature in the underlying aerosol model. Does this have any effect on the conversion?

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AR by Vassilis Amiridis on behalf of the Authors (29 May 2015) Author's response Manuscript

ED: Publish as is (31 May 2015) by Matthias Tesche

AR by Vassilis Amiridis on behalf of the Authors (02 Jun 2015)

Short summary

LIVAS is a 3-D multi-wavelength global aerosol and cloud optical database optimized for future space-based lidar end-to-end simulations of realistic atmospheric scenarios as well as retrieval algorithm testing activities. The global database is based on CALIPSO observations at 532nm, while for the conversion at 355nm EARLINET data are utilized.