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DOI: 10.5445/IR/1000039047
Veröffentlicht am 23.04.2018
DOI: 10.5194/amt-4-297-2011
Zitationen: 14
Web of Science
Zitationen: 14

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; Höpfner, M.; Orphal, J.; Flaud, J.M.; Edwards, D.P.; Chance, K.; Liu, X.; Pasternak, F.; Cantie, R.

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 Infr ... mehr

Zugehörige Institution(en) am KIT Fakultät für Physik (PHYSIK)
Institut für Meteorologie und Klimaforschung - Atmosphärische Spurenstoffe und Fernerkundung (IMK-ASF)
Institut für Meteorologie und Klimaforschung (IMK)
Publikationstyp Zeitschriftenaufsatz
Jahr 2011
Sprache Englisch
Identifikator ISSN: 1867-1381, 1867-8548
URN: urn:nbn:de:swb:90-390475
KITopen ID: 1000039047
HGF-Programm 12.04.03; LK 01
Erschienen in Atmospheric measurement techniques
Band 4
Heft 2
Seiten 297-317
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