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Volume 17, issue 2
Atmos. Chem. Phys., 17, 1081–1103, 2017
https://doi.org/10.5194/acp-17-1081-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Atmos. Chem. Phys., 17, 1081–1103, 2017
https://doi.org/10.5194/acp-17-1081-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 24 Jan 2017

Research article | 24 Jan 2017

Impact of spaceborne carbon monoxide observations from the S-5P platform on tropospheric composition analyses and forecasts

Rachid Abida1, Jean-Luc Attié1,2, Laaziz El Amraoui1, Philippe Ricaud1, William Lahoz3, Henk Eskes4, Arjo Segers5, Lyana Curier5, Johan de Haan4, Jukka Kujanpää6, Albert Oude Nijhuis4, Johanna Tamminen6, Renske Timmermans5, and Pepijn Veefkind4 Rachid Abida et al.
  • 1CNRM-GAME, Météo-France/CNRS UMR 3589, Toulouse, France
  • 2Université de Toulouse, Laboratoire d'Aérologie, CNRS UMR 5560, Toulouse, France
  • 3NILU – Norwegian Institute for Air Research, P.O. Box 100, 2027 Kjeller, Norway
  • 4Royal Netherlands Meteorological Institute (KNMI), P.O. Box 201, 3730 AE De Bilt, the Netherlands
  • 5TNO, Business unit Environment, Health and Safety, P.O. Box 80015, 3508 TA Utrecht, the Netherlands
  • 6Finnish Meteorological Institute, Earth Observation Unit, P.O. Box 503, 00101 Helsinki, Finland

Abstract. We use the technique of Observing System Simulation Experiments (OSSEs) to quantify the impact of spaceborne carbon monoxide (CO) total column observations from the Sentinel-5 Precursor (S-5P) platform on tropospheric analyses and forecasts. We focus on Europe for the period of northern summer 2003, when there was a severe heat wave episode associated with extremely hot and dry weather conditions. We describe different elements of the OSSE: (i) the nature run (NR), i.e., the truth; (ii) the CO synthetic observations; (iii) the assimilation run (AR), where we assimilate the observations of interest; (iv) the control run (CR), in this study a free model run without assimilation; and (v) efforts to establish the fidelity of the OSSE results. Comparison of the results from AR and the CR, against the NR, shows that CO total column observations from S-5P provide a significant benefit (at the 99 % confidence level) at the surface, with the largest benefit occurring over land in regions far away from emission sources. Furthermore, the S-5P CO total column observations are able to capture phenomena such as the forest fires that occurred in Portugal during northern summer 2003. These results provide evidence of the benefit of S-5P observations for monitoring processes contributing to atmospheric pollution.

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A detailed Observing System Simulation Experiment is performed to quantify the impact of future satellite instrument S-5P carbon monoxide (CO) on tropospheric analyses and forecasts. We focus on Europe for the period of northern summer 2003, when there was a severe heat wave episode. S-5P is able to capture the CO from forest fires that occurred in Portugal. Furthermore, our results provide evidence of S-5P CO benefits for monitoring processes contributing to atmospheric pollution.
A detailed Observing System Simulation Experiment is performed to quantify the impact of future...
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