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Internal consistency of the iagos ozone and carbon monoxide measurements for the last 25 years

Blot, Romain; Nedelec, Philippe; Boulanger, Damien; Wolff, Pawel; Sauvage, Bastien; Cousin, Jean-Marc; Athier, Gilles; Zahn, Andreas 1; Obersteiner, Florian ORCID iD icon 1; Scharffe, Dieter; Petetin, Hervé; Bennouna, Yasmine; Clark, Hannah; Thouret, Valérie
1 Institut für Meteorologie und Klimaforschung (IMK), Karlsruher Institut für Technologie (KIT)


The In-service Aircraft for a Global Observing System (IAGOS) is a European research infrastructure that equips the Airbus A340/330 with a system for monitoring atmospheric composition. The IAGOS instruments have three different configurations: IAGOS-Core, IAGOS – Measurement of Ozone and Water Vapor by Airbus In Service Aircraft (IAGOS-MOZAIC) and IAGOS – Civil Aircraft for the Regular Investigation of the atmosphere Based on an Instrument Container (IAGOS-CARIBIC). Since 1994, there have been a total of 17 aircraft equipped. In this study, we perform an intercomparison of about 8000 landing and takeoff profiles to compare the O$_{3}$ and CO measurements performed from these different configurations. The collocated profiles used in the study met various selection criteria. The first was a maximal 1 h time difference between an ascent or descent by two different aircraft at the same airport and the second was a selection based on the similarity of air masses based on the meteorological data acquired by the aircraft. We provide here an evaluation of the internal consistency of the O$_{3}$ and CO measurements since 1994. For both O$_{3}$ and CO, we find no drift in the bias amongst the different instrument units (six O$_{3}$ and six CO IAGOS-MOZAIC instruments, nine IAGOS-Core Package1 and the two instruments used in the IAGOS-CARIBIC aircraft). ... mehr

Verlagsausgabe §
DOI: 10.5445/IR/1000133839
Veröffentlicht am 14.06.2021
DOI: 10.5194/amt-14-3935-2021
Zitationen: 12
Zitationen: 15
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung – Atmosphärische Spurenstoffe und Fernerkundung (IMK-ASF)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 27.05.2021
Sprache Englisch
Identifikator ISSN: 1867-1381, 1867-8548
KITopen-ID: 1000133839
HGF-Programm 12.11.13 (POF IV, LK 01) Long-term trends of global atmospheric composition
Erschienen in Atmospheric Measurement Techniques
Verlag Copernicus Publications
Band 14
Heft 5
Seiten 3935-3951
Nachgewiesen in Scopus
Web of Science
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