Articles | Volume 9, issue 9
Atmos. Meas. Tech., 9, 4327–4353, 2016
https://doi.org/10.5194/amt-9-4327-2016
Atmos. Meas. Tech., 9, 4327–4353, 2016
https://doi.org/10.5194/amt-9-4327-2016

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

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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.