An overview of and issues with sky radiometer technology and SKYNET

Nakajima, Teruyuki; Campanelli, Monica; Che, Huizheng; Estellés, Victor; Irie, Hitoshi; Kim, Sang-Woo; Kim, Jhoon; Liu, Dong; Nishizawa, Tomoaki; Pandithurai, Govindan; Soni, Vijay Kumar; Thana, Boossarasiri; Tugjsurn, Nas-Urt; Aoki, Kazuma; Go, Sujung; Hashimoto, Makiko; Higurashi, Akiko; Kazadzis, Stelios; Khatri, Pradeep; Kouremeti, Natalia; Kudo, Rei; Marenco, Franco; Momoi, Masahiro; Ningombam, Shantikumar S.; Ryder, Claire L.; Uchiyama, Akihiro; Yamazaki, Akihiro

doi:https://doi.org/10.5194/amt-13-4195-2020

Articles | Volume 13, issue 8

https://doi.org/10.5194/amt-13-4195-2020

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

Special issue:

SKYNET – the international network for aerosol, clouds,...

https://doi.org/10.5194/amt-13-4195-2020

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

Articles | Volume 13, issue 8

Research article

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10 Aug 2020

Research article | Highlight paper |

| 10 Aug 2020

An overview of and issues with sky radiometer technology and SKYNET

Teruyuki Nakajima, Monica Campanelli, Huizheng Che, Victor Estellés, Hitoshi Irie, Sang-Woo Kim, Jhoon Kim, Dong Liu, Tomoaki Nishizawa, Govindan Pandithurai, Vijay Kumar Soni, Boossarasiri Thana, Nas-Urt Tugjsurn, Kazuma Aoki, Sujung Go, Makiko Hashimoto, Akiko Higurashi, Stelios Kazadzis, Pradeep Khatri, Natalia Kouremeti, Rei Kudo, Franco Marenco, Masahiro Momoi, Shantikumar S. Ningombam, Claire L. Ryder, Akihiro Uchiyama, and Akihiro Yamazaki

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Final revised paper (published on 10 Aug 2020)
Preprint (discussion started on 16 Mar 2020)

Interactive discussion

Status: closed

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

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SC1: 'remark regarding Intorduction', Alexander Smirnov, 19 Mar 2020
- AC1: 'Response to Dr. A. Smirnov', Teruyuki Nakajima, 09 Jun 2020
RC1: 'Review of the paper by Nakajima et al., " An overview and issues of the sky radiometer technology and SKYNET "', Anonymous Referee #1, 12 Apr 2020
- AC2: 'Response to Referee #1', Teruyuki Nakajima, 09 Jun 2020
RC2: 'Review of SKYNET overview paper', Anonymous Referee #2, 14 Apr 2020
- AC3: 'Response to Referee #2', Teruyuki Nakajima, 09 Jun 2020

Peer-review completion

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

AR by Teruyuki Nakajima on behalf of the Authors (09 Jun 2020) Author's response Manuscript

ED: Referee Nomination & Report Request started (11 Jun 2020) by Omar Torres

RR by Anonymous Referee #2 (19 Jun 2020)

Suggestions for revision or reasons for rejection

Review for Atmospheric Measurement Techniques

Title: An overview and issues of the sky radiometer technology and SKYNET (Revised)

Authors: Teruyuki Nakajima, Monica Campanelli, Huizheng Che, Victor Estellés, Hitoshi Irie, Sang-Woo Kim, Jhoon Kim, Dong Liu, Tomoaki Nishizawa, Govindan Pandithurai, Vijay Kumar Soni, Boossarasiri Thana, Nas-Urt Tugjsurn, Kazuma Aoki, Makiko, Hashimoto, Akiko Higurashi, Stelios Kazadzis, Pradeep Khatri, Natalia Kouremeti, Rei Kudo, Franco Marenco, Masahiro, Momoi, Shantikumar S. Ningombam, Claire L. Ryder, Akihiro Uchiyama

General Comments:
This revised version of the paper is much improved over the original version. The authors have satisfactorily responded to my comments and added significant clarifications and additional information. The manuscript is now acceptable for publication, after consideration of a couple of minor comments/suggestions listed below.

Specific Comments:

Page 6, lines 18-20: An additional sentence or two explaining what a full almucantar scan is, versus a forward almucantar scan would be useful. Does the full scan include sky radiances from both sides of the sun to establish symmetry as in AERONET almucantar scans? The symmetry check in AERONET is an effective cloud screen and also provides the added benefit of spatial averaging of sky radiances (from equal angles on both sides of the sun) in the case of inhomogeneous aerosol distribution in space and time. Please include a brief comparison to the AERONET almucantar sky radiance scan.

Page 23, last sentence of the Conclusions, lines 11-12: Something is missing from this sentence, like the phase "is still required for full accuracy assessment." at the end. Please revise.

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ED: Publish subject to minor revisions (review by editor) (19 Jun 2020) by Omar Torres

AR by Teruyuki Nakajima on behalf of the Authors (22 Jun 2020)

ED: Publish as is (29 Jun 2020) by Omar Torres

AR by Teruyuki Nakajima on behalf of the Authors (30 Jun 2020) Manuscript

Post-review adjustments

AA: Author's adjustment | EA: Editor approval

AA by Teruyuki Nakajima on behalf of the Authors (30 Jul 2020) Author's adjustment Manuscript

EA: Adjustments approved (05 Aug 2020) by Omar Torres

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Short summary

This paper overviews the progress in sky radiometer technology and the development of the network called SKYNET. It is found that the technology has produced useful on-site calibration methods, retrieval algorithms, and data analyses from sky radiometer observations of aerosol, cloud, water vapor, and ozone. The paper also discusses current issues of SKYNET to provide better information for the community.