Metrology of ground-based satellite validation: co-location mismatch and smoothing issues of total ozone comparisons

Verhoelst, T.; Granville, J.; Hendrick, F.; Köhler, U.; Lerot, C.; Pommereau, J.-P.; Redondas, A.; Van Roozendael, M.; Lambert, J.-C.

doi:https://doi.org/10.5194/amt-8-5039-2015

Articles | Volume 8, issue 12

https://doi.org/10.5194/amt-8-5039-2015

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

Special issue:

GOME-2: calibration, algorithms, data products and...

https://doi.org/10.5194/amt-8-5039-2015

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

Articles | Volume 8, issue 12

Research article

|

02 Dec 2015

Research article |

| 02 Dec 2015

Metrology of ground-based satellite validation: co-location mismatch and smoothing issues of total ozone comparisons

T. Verhoelst, J. Granville, F. Hendrick, U. Köhler, C. Lerot, J.-P. Pommereau, A. Redondas, M. Van Roozendael, and J.-C. Lambert

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Final revised paper (published on 02 Dec 2015)
Preprint (discussion started on 04 Aug 2015)

Interactive discussion

Status: closed

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

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RC C3016: 'Review of Metrology of ground-based satellite validation: Co-location mismatch and smoothing issues of total ozone comparisons by Verhoelst et al.', Anonymous Referee #1, 18 Sep 2015
- AC C3675: 'Reply to anonymous referee #1', Tijl Verhoelst, 30 Oct 2015
RC C3169: 'Review of amtd-8-8023-2015', Anonymous Referee #2, 28 Sep 2015
- AC C3680: 'Reply to anonymous referee #2', Tijl Verhoelst, 30 Oct 2015

Short summary

Comparisons between satellite and ground-based measurements of the atmosphere are inevitably affected by natural variability due to mismatches in spatial and temporal co-location. These additional terms in the comparison error budget are quantified here for total ozone column comparisons using an Observing System Simulation Experiment. Even when using tight co-location criteria, atmospheric variability is found to impact the comparisons significantly.