Development of on-site self-calibration and retrieval methods for sky-radiometer observations of precipitable water vapor

Momoi, Masahiro; Kudo, Rei; Aoki, Kazuma; Mori, Tatsuhiro; Miura, Kazuhiko; Okamoto, Hiroshi; Irie, Hitoshi; Shoji, Yoshinori; Uchiyama, Akihiro; Ijima, Osamu; Takano, Matsumi; Nakajima, Teruyuki

doi:https://doi.org/10.5194/amt-13-2635-2020

Articles | Volume 13, issue 5

https://doi.org/10.5194/amt-13-2635-2020

© 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-13-2635-2020

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

Articles | Volume 13, issue 5

Research article

|

20 May 2020

Research article |

| 20 May 2020

Development of on-site self-calibration and retrieval methods for sky-radiometer observations of precipitable water vapor

Masahiro Momoi, Rei Kudo, Kazuma Aoki, Tatsuhiro Mori, Kazuhiko Miura, Hiroshi Okamoto, Hitoshi Irie, Yoshinori Shoji, Akihiro Uchiyama, Osamu Ijima, Matsumi Takano, and Teruyuki Nakajima

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Final revised paper (published on 20 May 2020)
Preprint (discussion started on 11 Dec 2019)

Interactive discussion

Status: closed

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

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RC1: 'Review of Momoi et al.', Anonymous Referee #1, 31 Dec 2019
- AC1: 'Reply to RC1', Masahiro Momoi, 25 Mar 2020
RC2: 'Momoi review', Anonymous Referee #2, 07 Jan 2020
- AC2: 'Reply to RC2', Masahiro Momoi, 25 Mar 2020
RC3: 'Comments to the manuscript by M. Momoi', Anonymous Referee #3, 15 Jan 2020
- AC3: 'Reply to RC3', Masahiro Momoi, 25 Mar 2020

Peer-review completion

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

AR by Masahiro Momoi on behalf of the Authors (25 Mar 2020) Author's response Manuscript

ED: Publish as is (18 Apr 2020) by Monica Campanelli

AR by Masahiro Momoi on behalf of the Authors (18 Apr 2020)

Short summary

The water vapor channel of sun photometers, such as a sky radiometer, has been calibrated at limited observation sites (e.g., Mauna Loa) in previous studies, but our procedure has made on-site calibration possible by using sky radiances in addition to direct solar irradiance. The retrieved precipitable water vapor values correspond well to those derived from a global-navigation-satellite-system–global-positioning-system receiver, a microwave radiometer, and an AERONET sun–sky radiometer.