Validation of the IASI FORLI/EUMETSAT ozone products using satellite (GOME-2), ground-based (Brewer–Dobson, SAOZ, FTIR) and ozonesonde measurements

Boynard, Anne; Hurtmans, Daniel; Garane, Katerina; Goutail, Florence; Hadji-Lazaro, Juliette; Koukouli, Maria Elissavet; Wespes, Catherine; Vigouroux, Corinne; Keppens, Arno; Pommereau, Jean-Pierre; Pazmino, Andrea; Balis, Dimitris; Loyola, Diego; Valks, Pieter; Sussmann, Ralf; Smale, Dan; Coheur, Pierre-François; Clerbaux, Cathy

doi:https://doi.org/10.5194/amt-11-5125-2018

Articles | Volume 11, issue 9

https://doi.org/10.5194/amt-11-5125-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Quadrennial Ozone Symposium 2016 – Status and trends...

https://doi.org/10.5194/amt-11-5125-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 11, issue 9

Research article

|

10 Sep 2018

Research article |

| 10 Sep 2018

Validation of the IASI FORLI/EUMETSAT ozone products using satellite (GOME-2), ground-based (Brewer–Dobson, SAOZ, FTIR) and ozonesonde measurements

Anne Boynard, Daniel Hurtmans, Katerina Garane, Florence Goutail, Juliette Hadji-Lazaro, Maria Elissavet Koukouli, Catherine Wespes, Corinne Vigouroux, Arno Keppens, Jean-Pierre Pommereau, Andrea Pazmino, Dimitris Balis, Diego Loyola, Pieter Valks, Ralf Sussmann, Dan Smale, Pierre-François Coheur, and Cathy Clerbaux

Data sets

The AC SAF GOME-2 O3 products AC SAF http://acsaf.org

The IASI O3 products processed with FORLI-O3 v20151001 Aeris http://iasi.aeris-data.fr/O3/

The FTIR total ozone and ozone vertical profile soundings FTIR http://www.ndacc.org

The NOAA-ESRL ozone soundings NOAA http://www.esrl.noaa.gov/gmd/dv/ftpdata.html

The SAOZ total ozone soundings SAOZ http://saoz.obs.uvsq.fr

World Meteorological Organization-Global Atmosphere Watch Program (WMO-GAW)/World Ozone and Ultraviolet Radiation Data Centre (WOUDC) ozonesonde data WMO/GAW Ozone Monitoring Community https://doi.org/10.14287/10000008

World Meteorological Organization-Global Atmosphere Watch Program (WMO-GAW)/World Ozone and Ultraviolet Radiation Data Centre (WOUDC) total ozone data WMO/GAW Ozone Monitoring Community https://doi.org/10.14287/10000004

Short summary

In this paper, we perform a comprehensive validation of the IASI/Metop ozone data using independent observations (satellite, ground-based and ozonesonde). The quality of the IASI total and tropospheric ozone columns in terms of bias and long-term stability is generally good. Compared with ozonesonde data, IASI overestimates (underestimates) the ozone abundance in the stratosphere (troposphere). A negative drift in tropospheric ozone is observed, which is not well understood at this point.