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On the improved stability of the version 7 MIPAS ozone record

Laeng, Alexandra; Eckert, Ellen; von Clarmann, Thomas; Kiefer, Michael; Hubert, Daan; Stiller, Gabriele; Glatthor, Norbert; López-Puertas, Manuel; Funke, Bernd; Grabowski, Udo; Plieninger, Johannes; Kellmann, Sylvia; Linden, Andrea; Lossow, Stefan; Babenhauserheide, Arne; Froidevaux, Lucien; Walker, Kaley

The Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) was an infrared limb emission spectrometer on the Envisat platform. From 2002 to 2012, it performed pole-to-pole measurements during day and night, producing more than 1000 profiles per day. The European Space Agency (ESA) recently released the new version 7 of Level 1B MIPAS spectra, in which a new set of time-dependent correction coefficients for the nonlinearity in the detector response functions was implemented. This change is expected to reduce the long-term drift of the MIPAS Level 2 data. We evaluate the long-term stability of ozone Level 2 data retrieved from MIPAS v7 Level 1B spectra with the IMK/IAA scientific level 2 processor. For this, we compare MIPAS data with ozone measurements from the Microwave Limb Sounder (MLS) instrument on NASA's Aura satellite, ozonesondes and ground-based lidar instruments. The ozonesondes and lidars alone do not allow us to conclude with enough significance that the new version is more stable than the previous one, but a clear improvement in long-term stability is observed in the satellite-data-based drift analysis. The results of ozonesondes, lidars and satellite drift analysis are consistent: all indicate that the drifts of the new version are less negative/more positive nearly everywhere above 15km. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000085427
Veröffentlicht am 22.08.2018
DOI: 10.5194/amt-11-4693-2018
Zitationen: 2
Web of Science
Zitationen: 2
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung - Atmosphärische Spurenstoffe und Fernerkundung (IMK-ASF)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2018
Sprache Englisch
Identifikator ISSN: 1867-8548
KITopen-ID: 1000085427
HGF-Programm 12.04.05 (POF III, LK 01) Trends,Variaility,Large-Scale Processes
Erschienen in Atmospheric measurement techniques
Verlag Copernicus Publications
Band 11
Heft 8
Seiten 4693–4705
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Vorab online veröffentlicht am 10.08.2018
Nachgewiesen in Scopus
Web of Science
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