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Atmospheric Measurement Techniques An interactive open-access journal of the European Geosciences Union
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Discussion papers
https://doi.org/10.5194/amt-2018-215
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-2018-215
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 06 Aug 2018

Research article | 06 Aug 2018

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This discussion paper is a preprint. A revision of the manuscript for further review has not been submitted.

Monitoring aerosols over Europe: an assessment of the potential benefit of assimilating the VIS04 measurements from the future MTG/FCI geostationary imager

Maxence Descheemaecker1, Matthieu Plu1, Virginie Marécal1, Marine Claeyman2, Francis Olivier2, Youva Aoun3, Philippe Blanc3, Lucien Wald3, Jonathan Guth1, Bojan Sič1, Jérôme Vidot4, Andrea Piacentini5, and Béatrice Josse1 Maxence Descheemaecker et al.
  • 1CNRM, Météo-France – CNRS, UMR3589, 31057, Toulouse, France
  • 2Thales Alenia Space, Cannes la Bocca, 06156, France
  • 3Mines ParisTech, PSL Research University, O.I.E. – Center for Observation, Impacts, Energy, Sophia Antipolis, 06904, France
  • 4Centre de Météorologie Spatiale, Météo-France, 22300, Lannion, France
  • 5CERFACS – CNRS, UMR5318, 31057, Toulouse, France

Abstract. The study assesses the possible benefit of assimilating Aerosol Optical Depth (AOD) from the future spaceborne sensor FCI (Flexible Combined Imager) for air quality monitoring in Europe. An Observing System Simulation Experiment (OSSE) was designed and applied over a 4-months period that includes a severe pollution episode. The study focuses on the FCI channel centred at 444nm, which is the shortest wavelength of FCI. A Nature Run (NR) and four different Control Runs of the MOCAGE chemistry-transport model were designed and evaluated to guarantee the robustness of the OSSE results. The AOD synthetic observations from the NR were disturbed by errors that are typical of the FCI. The variance of the FCI AOD at 444nm was deduced from a global sensitivity analysis that took into account the aerosol type, surface reflectance and different atmospheric optical properties. The experiments show a general benefit on all statistical indicators of the assimilation of the FCI AOD at 444nm for aerosol concentrations at surface over Europe, and also a positive impact during the severe pollution event. The simulations with data assimilation reproduced spatial and temporal patterns of PM10 concentrations at surface better than without assimilation all along the simulations and especially during the pollution event. This work demonstrates the capability of data from the future FCI sensor to bring an added value to the MOCAGE aerosol simulations, and in general, to other chemistry transport models.

Maxence Descheemaecker et al.
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Status: closed (peer review stopped)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Interactive discussion
Status: closed (peer review stopped)
Status: closed (peer review stopped)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
Maxence Descheemaecker et al.
Maxence Descheemaecker et al.
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Short summary
The study assesses the possible benefit of assimilating Aerosol Optical Depth from the future spaceborne sensor Flexible Combined Imager for air quality monitoring in Europe. An Observing System Simulation Experiment was designed and applied over a 4-months period that includes a severe pollution episode. The simulations with data assimilation reproduced spatial and temporal patterns of PM10 concentrations at surface better than without assimilation.
The study assesses the possible benefit of assimilating Aerosol Optical Depth from the future...
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