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Retrievals of heavy ozone with MIPAS

Jonkheid, B.; Röckmann, T.; Glatthor, N. 1; Janssen, C.; Stiller, G. ORCID iD icon 1; Von Clarmann, T. 1
1 Institut für Meteorologie und Klimaforschung (IMK), Karlsruher Institut für Technologie (KIT)


A method for retrieval of $^{18}$O-substituted isotopomers of O₃ in the stratosphere with the Michelson Interferometer
for Passive Atmospheric Sounding (MIPAS) is presented. Using a smoothing regularisation constraint, volume mixing ratio profiles are retrieved for the main isotopologue and the symmetric and asymmetric isotopomers of singly substituted O₃. For the retrieval of the heavy isotopologues, two microwindows in the MIPAS A band (685-970 cm$^{-1}$) and six in the AB band (1020-1170 cm$^{-1}$) are used. As the retrievals are performed as perturbations on the previously retrieved a priori profiles, the vertical resolution of the individual isotopomer profiles is very similar, which is important when calculating the ratio between two isotopomers. The performance of the method is evaluated using 1044 vertical profiles recorded with MIPAS on 1 July 2003.
The mean values are separated by latitude bands, along with estimates of their uncertainties. The asymmetric isotopomer
shows a mean enrichment of ~ 8 %, with a vertical profile that increases up to 33 km and decreases at higher altitudes.
This decrease with altitude is a robust result that does not depend on retrieval settings, and it has not been reported clearly
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DOI: 10.5445/IR/1000065669
DOI: 10.5194/amt-9-6069-2016
Zitationen: 5
Zitationen: 6
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung – Atmosphärische Spurenstoffe und Fernerkundung (IMK-ASF)
KIT-Zentrum Klima und Umwelt (ZKU)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2016
Sprache Englisch
Identifikator ISSN: 1867-1381, 1867-8548
KITopen-ID: 1000065669
HGF-Programm 12.04.05 (POF III, LK 01) Trends,Variaility,Large-Scale Processes
Erschienen in Atmospheric measurement techniques
Verlag Copernicus Publications
Band 9
Heft 12
Seiten 6069-6079
Nachgewiesen in Dimensions
Web of Science
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