A new method of measuring aerosol optical properties from digital twilight photographs

Saito, M.; Iwabuchi, H.

doi:https://doi.org/10.5194/amt-8-4295-2015

Articles | Volume 8, issue 10

https://doi.org/10.5194/amt-8-4295-2015

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

https://doi.org/10.5194/amt-8-4295-2015

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

Articles | Volume 8, issue 10

Research article

|

14 Oct 2015

Research article |

| 14 Oct 2015

A new method of measuring aerosol optical properties from digital twilight photographs

M. Saito and H. Iwabuchi

Download

Final revised paper (published on 14 Oct 2015)
Preprint (discussion started on 06 Jan 2015)

Interactive discussion

Status: closed

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

- Printer-friendly version

- Supplement

RC C274: 'Added discussion from very recent literature to the text', Anonymous Referee #1, 10 Mar 2015
- AC C1323: 'Response to Referee #1', Masanori Saito, 01 Jun 2015
RC C995: 'stratospheric and tropospheric aerosol optical depth retrieval from the twilight sky brightness', Anonymous Referee #3, 04 May 2015
- AC C1324: 'Response to Referee #3', Masanori Saito, 01 Jun 2015

Short summary

A new algorithm for aerosol retrievals from twilight photographs taken by a digital single reflex-lens camera is developed. A radiative transfer model taking spherical-shell atmosphere, multiple scattering and refraction into account is used as a forward model, and the optimal estimation is used as an inversion calculation to infer the aerosol optical and radiative properties. The AOTs are inferred with small uncertainties and agree very well with that from the skyradiometer.