Seven years of IASI ozone retrievals from FORLI: validation with independent
total column and vertical profile measurements

Boynard, Anne; Hurtmans, Daniel; Koukouli, Mariliza E.; Goutail, Florence; Bureau, Jérôme; Safieddine, Sarah; Lerot, Christophe; Hadji-Lazaro, Juliette; Wespes, Catherine; Pommereau, Jean-Pierre; Pazmino, Andrea; Zyrichidou, Irene; Balis, Dimitris; Barbe, Alain; Mikhailenko, Semen N.; Loyola, Diego; Valks, Pieter; Van Roozendael, Michel; Coheur, Pierre-François; Clerbaux, Cathy

doi:https://doi.org/10.5194/amt-9-4327-2016

Articles | Volume 9, issue 9

Atmos. Meas. Tech., 9, 4327–4353, 2016

https://doi.org/10.5194/amt-9-4327-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Atmos. Meas. Tech., 9, 4327–4353, 2016

https://doi.org/10.5194/amt-9-4327-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 9, issue 9

Research article 06 Sep 2016

Research article | 06 Sep 2016

Seven years of IASI ozone retrievals from FORLI: validation with independent total column and vertical profile measurements

Anne Boynard et al.

Data sets

IASI L1C data and L2 temperature data along with IASI O3 products processed with FORLI-O3 v20151001 Aeris (Institut Pierre Simon Laplace, France) http://www.aeris-data.fr

Spectroscopic data HITRAN http://hitran.org

O3M SAF GOME-2 L2 ozone data O3M SAF http://o3msaf.fmi.fi

O3-CCI GOME-2 L2 ozone data O3-CCI http://www.esa-ozone-cci.org

SAOZ SAOZ ozone data http://saoz.obs.uvsq.fr

Brewer, Dobson and ozonesonde data WOUDC http://www.woudc.org

Short summary

Seven years of O₃ observations retrieved from IASI/MetOp satellite instruments are validated with independent data (UV satellite and ground-based data along with ozonesonde profiles). Overall IASI overestimates the total ozone columns (TOC) by 2–7 % depending on the latitude. The assessment of an updated version of the IASI O₃ retrieval sofware shows a correction of ~ 4 % in the IASI TOC product, bringing the overall global bias with UV ground-based and satellite data to ~ 1–2 % on average.