Articles | Volume 9, issue 9
https://doi.org/10.5194/amt-9-4783-2016
https://doi.org/10.5194/amt-9-4783-2016
Research article
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27 Sep 2016
Research article | Highlight paper |  | 27 Sep 2016

First characterization and validation of FORLI-HNO3 vertical profiles retrieved from IASI/Metop

Gaétane Ronsmans, Bavo Langerock, Catherine Wespes, James W. Hannigan, Frank Hase, Tobias Kerzenmacher, Emmanuel Mahieu, Matthias Schneider, Dan Smale, Daniel Hurtmans, Martine De Mazière, Cathy Clerbaux, and Pierre-François Coheur

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Short summary
HNO3 concentrations are obtained from the IASI instrument and the data set is characterized for the first time in terms of vertical profiles, averaging kernels and error profiles. A validation is also conducted through a comparison with ground-based FTIR measurements, with good results. The data set is then used to analyse HNO3 spatial and temporal variability for the year 2011. The latitudinal gradient and the large seasonal variability in polar regions are well represented with IASI data.