Articles | Volume 9, issue 9
Atmos. Meas. Tech., 9, 4327–4353, 2016
Atmos. Meas. Tech., 9, 4327–4353, 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)

Spectroscopic data HITRAN

O3M SAF GOME-2 L2 ozone data O3M SAF

O3-CCI GOME-2 L2 ozone data O3-CCI

SAOZ SAOZ ozone data

Brewer, Dobson and ozonesonde data WOUDC

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.