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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)

Abstract:

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 O3 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 O3 and CO measurements since 1994. For both O3 and CO, we find no drift in the bias amongst the different instrument units (six O3 and six CO IAGOS-MOZAIC instruments, nine IAGOS-Core Package1 and the two instruments used in the IAGOS-CARIBIC aircraft). ... mehr

Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung Atmosphärische Spurengase und Fernerkundung (IMKASF)
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 Dimensions
Web of Science
Scopus

Verlagsausgabe §
DOI: 10.5445/IR/1000133839
Veröffentlicht am 14.06.2021
Originalveröffentlichung
DOI: 10.5194/amt-14-3935-2021
Scopus
Zitationen: 18
Web of Science
Zitationen: 13
Dimensions
Zitationen: 21
Seitenaufrufe: 156
seit 15.06.2021
Downloads: 100
seit 15.06.2021
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