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A geostationary thermal infrared sensor to monitor the lowermost troposphere: O₃ and CO retrieval studies

Claeyman, M.; Attie, J. L.; Peuch, V. H.; El Amraoui, L.; Lahoz, W. A.; Josse, B.; Ricaud, P.; Clarmann, T. von 1; Höpfner, M. ORCID iD icon 2; Orphal, J. 2; Flaud, J. M.; Edwards, D. P.; Chance, K.; Liu, X.; Pasternak, F.; Cantie, R.
1 Karlsruher Institut für Technologie (KIT)
2 Institut für Meteorologie und Klimaforschung (IMK), Karlsruher Institut für Technologie (KIT)


This paper describes the capabilities of a nadir thermal infrared (TIR) sensor proposed for deployment onboard a geostationary platform to monitor ozone (O3) and carbon monoxide (CO) for air quality (AQ) purposes. To assess the capabilities of this sensor we perform idealized retrieval studies considering typical atmospheric profiles of O3 and CO over Europe with different instrument configuration (signal to noise ratio, SNR, and spectral sampling interval, SSI) using the KOPRA forward model and the KOPRA-fit retrieval scheme. We then select a configuration, referred to as GEO-TIR, optimized for providing information in the lowermost troposphere (LmT; 0–3 km in height). For the GEO-TIR configuration we obtain ~1.5 degrees of freedom for O3 and ~2 for CO at altitudes between 0 and 15 km. The error budget of GEO-TIR, calculated using the principal contributions to the error (namely, temperature, measurement error, smoothing error) shows that information in the LmT can be achieved by GEO-TIR. We also retrieve analogous profiles from another geostationary infrared instrument with SNR and SSI similar to the Meteosat Third Generation Infrared Sounder (MTG-IRS) which is dedicated to numerical weather prediction, referred to as GEO-TIR2. ... mehr

Verlagsausgabe §
DOI: 10.5445/IR/1000039047
Veröffentlicht am 23.04.2018
DOI: 10.5194/amt-4-297-2011
Zitationen: 16
Web of Science
Zitationen: 17
Zitationen: 20
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung – Atmosphärische Spurenstoffe und Fernerkundung (IMK-ASF)
Institut für Meteorologie und Klimaforschung (IMK)
KIT-Zentrum Klima und Umwelt (ZKU)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2011
Sprache Englisch
Identifikator ISSN: 1867-1381, 1867-8548
KITopen-ID: 1000039047
HGF-Programm 12.04.03 (POF II, LK 01) Chem.Budgets u.Chemie-Klima-Wechselw.
Erschienen in Atmospheric measurement techniques
Verlag Copernicus Publications
Band 4
Heft 2
Seiten 297-317
Nachgewiesen in Scopus
Web of Science
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