Pointing errors in solar absorption spectrometry &ndash; correction scheme and its validation

Reichert, A.; Hausmann, P.; Sussmann, R.

doi:https://doi.org/10.5194/amt-8-3715-2015

Articles | Volume 8, issue 9

https://doi.org/10.5194/amt-8-3715-2015

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

https://doi.org/10.5194/amt-8-3715-2015

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

Articles | Volume 8, issue 9

Research article

|

16 Sep 2015

Research article |

| 16 Sep 2015

Pointing errors in solar absorption spectrometry – correction scheme and its validation

A. Reichert, P. Hausmann, and R. Sussmann

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Final revised paper (published on 16 Sep 2015)
Preprint (discussion started on 22 Jun 2015)

Interactive discussion

Status: closed

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

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- Supplement

RC C2198: 'Comment on: Pointing errors in solar absorption spectrometry. Correction scheme and its validation.', Anonymous Referee #2, 23 Jul 2015
RC C2296: 'Referee comment on "Pointing errors in solar absorption spectrometry. Correction scheme and its validation"', Anonymous Referee #1, 29 Jul 2015
AC C2652: 'Author response to the anonymous referees‘ comments', Andreas Reichert, 20 Aug 2015

Short summary

A method for quantification of sun-pointing inaccuracies in solar absorption spectrometry is presented along with a correction scheme for the resulting errors in trace gas vertical column or profile retrievals. The mispointing is constrained by combining subsequent measurements of solar line shifts with differing orientations of the solar rotation axis relative to the zenith direction. The implementation and benefits of the method are demonstrated using the Zugspitze XCH4 measurements.