2007-2017: 10 years of IASI CO retrievals

Abstract : Carbon monoxide (CO) is an important trace gas for understanding air quality and atmospheric composition. It is a good tracer of pollution plumes and atmospheric dynamics. IASI CO concentrations are retrieved from the radiance data using the Fast Operational Retrievals on Layers for IASI (FORLI) algorithm, based on the Optimal Estimation theory. The operational production is performed at EUMETSAT and the products are distributed in NRT via EUMETCast under the AC SAF auspices. We present here an analysis of 10 years of global distributions of CO. Improvements of the last FORLI-CO version (v20151001) will be shown. Updates in the auxiliary parameters (temperature, cloud information) have an impact on the retrieved product. Comparison with MOPITT CO data (v7T, record starting in 2000) was performed, both for partial and total columns. Harmonizing IASI and MOPITT CO products is challenging: a method using corrective factors (developed in the framework of the QA4ECV project) will be presented.
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Conference papers
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Submitted on : Thursday, January 4, 2018 - 11:38:42 AM
Last modification on : Friday, April 5, 2019 - 8:23:58 PM

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  • HAL Id : insu-01675267, version 1

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Maya George, Cathy Clerbaux, Juliette Hadji-Lazaro, Pierre-François Coheur, Daniel Hurtmans, et al.. 2007-2017: 10 years of IASI CO retrievals. AGU 2017 Fall Meeting, Dec 2017, New Orleans, United States. ⟨insu-01675267⟩

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